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149 posts found

Flood Risk and Drainage for Gypsy and Traveller Sites: The Planning Requirements

A Gypsy and Traveller site flood risk assessment is needed for almost every pitch scheme on land that carries any flood risk, and these applications are judged against a tougher standard than ordinary housing. The reason is the caravan. Under…
Posted on 19th August, 2026
, in NPPF 
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Section 104 and Section 102 Agreements: A Developer’s Guide to Sewer Adoption

Posted on 18th August, 2026
, in SuDS 
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What is a Section 106 (drainage)? The right to connect to a public sewer

Posted on 18th August, 2026
, in SuDS 
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Five floods in two years: what a medieval disaster teaches us about back-to-back flooding

Between the autumn of 1341 and the end of 1343, much of Europe flooded again and again. A study published in Nature in August 2026 counted sixteen major flood events in that short window. Four of them were so large…
Posted on 13th August, 2026
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Why do water mains burst in hot weather? The hidden burst season explained

Ask most people when a pipe bursts and they will say winter: a hard frost, a big freeze, water turning to ice and splitting the metal. Half right. The summer of 2026 is busy proving the other half. As I…
Posted on 13th August, 2026
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What have the Romans ever done for us? Aside from the drainage, obviously

Ask a Roman what they ever did for us and you would probably get a shrug and a wave at, well, everything. Put the same question to a flood-risk engineer, though, and the answer turns oddly specific: a startling amount…
Posted on 11th August, 2026
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Skinningrove Flood Alleviation Scheme: £13m Defences Begin in 2026

Construction has started on the Skinningrove flood alleviation scheme, a £13 million Environment Agency project, delivered with Redcar and Cleveland Borough Council, that will protect more than 100 homes in the coastal village by 2028. At its heart is a…
Posted on 10th August, 2026
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Flood risk and drainage in the planning process: where they fit at every stage

If you are applying for planning permission for the first time, the part most likely to catch you out is not the design or the neighbours. It is flood risk and drainage in the planning process. Flooding and surface water…
Posted on 6th August, 2026
, in NPPF 
, in SuDS 
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Flood Risk Assessment and Drainage Strategy: Do You Need Both?

Most applications that need one of these documents need the other too. A flood risk assessment and a drainage strategy answer different questions: the first asks whether the site floods and whether your development makes flooding worse somewhere else, the…
Posted on 4th August, 2026
, in NPPF 
, in SuDS 
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Flood Risk and Drainage for EV Charging Infrastructure: What Developers Need to Know

There were 119,080 public chargers on the UK network on 1 April 2026, and 27,372 of them were rated 50kW or above. Almost all of it went in on land nobody picked for its flood characteristics: retail car parks, filling-station…
Posted on 30th July, 2026
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Can a Planning Condition Make You Fix a Flood Problem You Didn’t Cause?

Almost every developer who has taken a drainage condition through to discharge has met some version of this. The site floods. The gardens next door flood. The culvert downstream has been surcharging since long before anyone applied for anything. And…
Posted on 29th July, 2026
, in NPPF 
, in PPG 
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Shoreline Management Plans Explained: Hold the Line, Managed Realignment and No Active Intervention

England's coast runs to roughly 6,000km, and nearly all of it is covered by a shoreline management plan: the document that decides whether a stretch of shoreline gets defended, left alone, or allowed to move. A shoreline management plan (SMP)…
Posted on 27th July, 2026
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Erosion of trust: the government’s own words versus its coastal erosion grant

There is no coastal erosion compensation in the UK. If the sea takes your home, there is no insurance payout and no statutory compensation for the land or the building. Until 15 July 2026 there was a demolition grant that…
Posted on 24th July, 2026
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Sea Level Rise and Planning: Why 2100 Is No Longer the End of the Story

For most of UK practice, sea level rise and planning meet at a single tidy horizon: the end of this century. Flood risk assessments run their allowances out to the 2120s, defence schemes are appraised on similar timescales, and almost…
Posted on 22nd July, 2026
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Discharge of Planning Conditions: Process, Timescales and Costs (2026)

Discharge of planning conditions is the formal step of asking your local planning authority to confirm, in writing, that a condition attached to your planning permission has been satisfied. In planning terms it is an “application for approval of details…
Posted on 14th July, 2026
, in NPPF 
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The SuDS Hierarchy Explained

The SuDS hierarchy is the order in which a development has to try to get rid of its surface water: reuse it first, then let it soak into the ground, then send it to a watercourse, then a surface water…
Posted on 9th July, 2026
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Why Does Rain Stop Play at Wimbledon? The Science of Grass Court Drainage

Every Wimbledon has the same ritual. A few spots of rain, the umpire calls a halt, and within seconds the ground staff are sprinting the covers across the grass. It looks like an overreaction on a warm July afternoon. It…
Posted on 8th July, 2026
, in SuDS 
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How Football Pitch Drainage Works: Lessons from the 2026 World Cup

Watch a World Cup match in a downpour and the ball still runs true. There are no puddles on the halfway line, no spray kicking up at every pass. That is not luck. Football pitch drainage is a piece of…
Posted on 7th July, 2026
, in SuDS 
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Romsey Flood Alleviation Scheme: How New Defences Are Reducing Flood Risk in 2026

The Romsey flood alleviation scheme has just been strengthened again. In May 2026 the Environment Agency finished raising Stockbridge Road near Timsbury by around 40 centimetres and rebuilt the flood defence at a nearby weed-recovery compound: the latest step in…
Posted on 6th July, 2026
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Do building control and planning talk to each other? Drainage, SuDS and the gap between them

A building control officer tells you the simplest thing to do is run the surface water into the sewer. Your planning condition says infiltration first, greenfield runoff rates, attenuation for a one-in-100-year storm. Both cannot be right, and only one…
Posted on 3rd July, 2026
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Flood ReThink 2026: Flood Performance Certificates Explained

A Flood Performance Certificate (FPC) is a proposed rating of how well a home withstands flooding, and it is one of the headline proposals in the reforms Flood Re set out on 2 July 2026, ten years after the scheme…
Posted on 3rd July, 2026
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Retrospective Planning Applications: Flood Risk and Drainage Explained

A retrospective planning application is a normal application made after building work has already started or finished. Where that development sits in a flood risk area, or changes how surface water drains from the site, the retrospective planning application flood…
Posted on 2nd July, 2026
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Nutrient Neutrality in Planning: A 2026 Guide for England

Nutrient neutrality is a planning requirement that stops a new development from adding any extra nitrogen or phosphorus to a protected river, estuary or wetland that is already polluted. In dozens of English catchments it has become one of the…
Posted on 30th June, 2026
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What Is a SuDS Proforma and When Is It Required?

A SuDS proforma — also called a drainage proforma or sustainable drainage proforma — is a standardised summary form that goes in with a sustainable drainage strategy on a planning application. It sets out the key drainage information in a…
Posted on 26th June, 2026
, in SuDS 
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What is Water Neutrality? A 2026 guide for planning

Water neutrality is a planning requirement that a new development must not increase the total amount of water taken from the environment for public supply. In practice it means the extra demand created by new homes or buildings has to…
Posted on 24th June, 2026
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Climate Whiplash: What New UK River Research Means for Flood and Drought Risk

Climate whiplash, the abrupt swing between flood and drought as the climate warms, is set to become more common across the UK, according to major new research led by the University of East Anglia's Tyndall Centre. The study modelled almost…
Posted on 19th June, 2026
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Sequential test, exception test and the planning balance: lessons from the Yatton judgment

When a flood risk scheme fails the sequential test, does the decision end there? The High Court has now answered plainly. In *North Somerset District Council v Secretary of State for Housing, Communities and Local Government* [2026] EWHC 1430 (Admin),…
Posted on 18th June, 2026
, in NPPF 
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Why the Somerset Levels flood — and what £50m will (and won’t) fix

The Somerset Levels flood because they are a low-lying former wetland, much of which sits at or below the level of the rivers and tides meant to drain it. In a wet winter, water arrives faster than the catchment can…
Posted on 17th June, 2026
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The Four Pillars of SuDS Explained: Quantity, Quality, Amenity & Biodiversity

The four pillars of SuDS are water quantity, water quality, amenity and biodiversity — the four objectives a well-designed sustainable drainage system is meant to deliver at the same time. They come from the CIRIA SuDS Manual (C753) and now…
Posted on 16th June, 2026
, in SuDS 
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Permeable Paving for Planning Applications: When It Works and When It Doesn’t

Permeable paving is one of the most common SuDS features used in drainage strategies for planning applications, and on the right site it is one of the most useful. It lets rainfall pass through the surface into a stone sub-base…
Posted on 15th June, 2026
, in LLFA 
, in SuDS 
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Leaky Dams and Flood Risk: What They Do, Where They Work, and What They Can’t Fix

Anyone who has watched the latest series of Clarkson's Farm will have seen Jeremy Clarkson wading into a stream at Diddly Squat to build what he gleefully describes, after a bit of reading on the government's website, as "large, leaky,…
Posted on 13th June, 2026
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Critical Drainage Areas: What They Mean for Planning Applications

A critical drainage area is land where surface water runoff, drainage capacity or overland flow routes are sensitive enough that the planning authority wants flood risk dealt with before permission is granted, not after. If your site sits inside one,…
Posted on 12th June, 2026
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Human-driven sea level rise is increasing coastal flooding: what it means for UK flood risk

Two studies published on the same day this week reached the same uncomfortable conclusion: the rise in coastal flooding we are already seeing is being driven, in large part, by human-caused sea level rise. Not a future risk. A present…
Posted on 10th June, 2026
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Residual Flood Risk Explained: How It’s Assessed and Managed

Residual flood risk is the risk left over after defences, drainage and mitigation have done what they can. No scheme removes risk entirely. A defended site still floods if a barrier is overtopped, if a defence breaches, or if a…
Posted on 9th June, 2026
, in NPPF 
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Why Can’t I Use the Long Term Flood Risk Map for My Planning Application?

You cannot use the Environment Agency's long term flood risk map to support a planning application. It does not set Flood Zones, it cannot exempt a site from the Sequential Test, and since 28 May 2026 the EA's own suitability…
Posted on 5th June, 2026
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Can You Build a House on Stilts in a Flood Zone? Floodable Voids Explained

Yes, you can build a house on stilts in a flood zone in England, and floodable voids are the engineering that makes it work. A floodable void is an open space beneath a building that lets floodwater flow in, through…
Posted on 4th June, 2026
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Groundwater Flood Risk Maps in the UK: How to Check a Site

There is no single official groundwater flood map for the UK in the way there is for rivers and the sea. That gap is the first thing to understand when you try to check groundwater flood risk: the familiar national…
Posted on 2nd June, 2026
, in BGS 
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Surface Water Flooding and Planning: A Complete Guide for Developers

Surface water is the most widespread source of flood risk in England, and the August 2026 National Planning Policy Framework has made how you handle it decisive at the planning stage. Getting surface water flooding and planning right now turns…
Posted on 1st June, 2026
, in SuDS 
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BREEAM Flood Risk Assessments Explained

BREEAM is the leading sustainability assessment method for buildings, and flood risk is one of the things it rewards designers for managing well. A BREEAM flood risk assessment is not quite the same as the flood risk assessment you submit…
Posted on 25th May, 2026
, in SuDS 
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Groundwater Flood Risk and Planning Applications: What Developers Need to Submit

Key takeaways If your site needs a Flood Risk Assessment, that FRA must assess groundwater — it is not optional under the NPPF and Planning Practice Guidance. The national flood maps do not show groundwater. Screen with the BGS Susceptibility…
Posted on 22nd May, 2026
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Can AI Write a Flood Risk Assessment?

Ask any chatbot to write a flood risk assessment and it will hand you a confident, well-formatted document in seconds. That is the easy part, and it is also the misleading part, because a flood risk assessment is not really…
Posted on 20th May, 2026
, in AI 
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EA SWIM Explained: Building a Business Case for Small-Scale SuDS Investment

The Surface Water Investment Model (SWIM) is an Environment Agency approach, published on 18 May 2026, for building a business case to invest in many small sustainable drainage features across a wide area, rather than one large scheme, so their…
Posted on 19th May, 2026
, in SuDS 
, in SWIM 
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Property Flood Resilience and Planning: The 2025 FloodReady Action Plan, the CIRIA Code and Build Back Better

Property flood resilience (PFR) has moved from the margins of flood policy towards the centre of it. The 2025 FloodReady action plan, the maturing CIRIA Code of Practice, and insurance-side schemes like Build Back Better have made the idea of…
Posted on 14th May, 2026
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The Flood Knowledge Gap Between Communities and Institutions

In 1724, a local historian described one Berkshire village as "a low and watery place" where "water is a dominant theme … with disastrous floods, both within and beyond living memory." More than two centuries later, that village still requires…
Posted on 11th May, 2026
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EA River Modelling Technical Standards (2026): What Flood Risk Assessments Must Demonstrate

Hydraulic modelling sits behind almost every detailed flood risk assessment, and the Environment Agency sets the standard for how those models are built and reviewed. The EA's river modelling technical standards define what a credible model looks like and what…
Posted on 8th May, 2026
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Nature-Based Flood and Drought Resilience: The Evidence Gap POSTnote 768 Just Flagged

Nature-based flood and drought resilience, a new briefing from the Parliamentary Office of Science and Technology (POSTnote 768) published on 1 May 2026, includes a statistic worth dwelling on: research on the potential benefits of nature-based solutions outnumbers research on…
Posted on 5th May, 2026
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Surface Water Flood Risk in England’s Towns and Cities: What the Data Now Shows

Posted on 29th April, 2026
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Fens 2100+: flood risk management is reaching its limits – and the Fens show why

The Fens 2100+ reports set out one of the clearest assessments yet of flood risk, drainage and water management in England. They do not introduce a new problem, but they quantify one that has been building for decades. Fens 2100+…
Posted on 28th April, 2026
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What are ‘spongy landscapes’ and how do they reduce flood risk?

Flood risk is often discussed in terms of rivers, drainage systems and flood defences. That makes sense, but it misses something important: a flood often starts long before water reaches a river channel or a roadside drain. It starts with…
Posted on 24th April, 2026
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From 6-Hour Warning to Spade in Ground: What SWFFIP Means for Planning

On 16th April the Flood Forecasting Centre published the results of SWFFIP, the Surface Water Flood Forecasting Improvement Project. The programme brings two models into fuller operational use: the Surface Water Flooding Hazard Impact Model (SWFHIM), which has been running…
Posted on 21st April, 2026
, in SuDS 
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Are Flood Maps Accurate? Why a Property Can Flood When the Map Says Low Risk (and Vice Versa)

Are flood maps accurate? At the scale they are built for, a region, a catchment, a whole postcode, broadly yes. At the scale that matters when you are buying a house or designing a single building, often not. National flood…
Posted on 17th April, 2026
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Groundwater Monitoring for Planning: Requirements, Timing and Delays

Groundwater monitoring for planning is the process of measuring how the water table beneath a site rises and falls over time, usually to prove that an infiltration-based drainage scheme will work. It is most often needed where Sustainable Drainage Systems…
Posted on 14th April, 2026
, in SuDS 
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Source Control in UK Drainage: SuDS at Plot Level

Source control means managing rainfall as close as possible to where it lands, before it has a chance to run off into the wider drainage network. It sits at the very top of the SuDS hierarchy, and in principle it…
Posted on 9th April, 2026
, in SuDS 
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Groundwater, heritage, and the cost of getting flood risk wrong

Flood defences are designed to keep water out. This case shows what happens when they change where the water goes instead. A recent Upper Tribunal decision involving The King’s Lodging in Sandwich has brought an often-overlooked aspect of flood risk…
Posted on 26th March, 2026
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LLFA Objection to a Planning Application: Why Drainage Strategies Are Rejected and How to Resolve It

An LLFA objection to a planning application is one of the most common hurdles a development can hit, and one of the most resolvable. It rarely means the scheme is unacceptable in principle. It means the Lead Local Flood Authority,…
Posted on 23rd March, 2026
, in LLFA 
, in SuDS 
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Environment Agency Objection to Your Planning Application (Flood Risk): How to Resolve It

An Environment Agency objection to a planning application on flood risk grounds is unsettling, but it is rarely the end of a scheme. In most cases it means the flood risk evidence in front of the local planning authority is…
Posted on 23rd March, 2026
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England Land Use Framework Published: Flood Risk and Planning Impact

The government has published England’s first Land Use Framework, setting out a long-term strategy for how land is allocated across housing, farming, infrastructure and the natural environment. The framework responds to a fundamental constraint: land is finite, but demand is…
Posted on 20th March, 2026
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What Is Environment Agency Flood Data? Product 4, 5, 6 and 7 Explained

Environment Agency flood data underpins how flood risk is assessed in the English planning system, yet it is one of the most misunderstood parts of the process. Terms like "Product 4" or "Product 6" get passed around in pre-application advice,…
Posted on 20th March, 2026
, in GIS 
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£1.4bn Flood Defence Funding 2026/27 Explained

The UK government has announced £1.4 billion of flood defence funding for 2026 / 27, supporting more than 600 schemes across England, as set out in the official £1.4bn flood investment announcement. The funding is intended to reduce flood risk…
Posted on 18th March, 2026
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Why a Conveyancing Flood Report Won’t Pass Planning (And What Will)

A conveyancing flood report will not pass planning, because it answers a different question from the one a planning authority is asking. A conveyancing flood report screens an existing property for a buyer or a lender. A planning flood risk…
Posted on 10th March, 2026
, in NPPF 
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Flood Risk Vulnerability Classification: The 2026 NPPF Guide (Annex F, Table 2)

Posted on 2nd March, 2026
, in NPPF 
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Living with Water: What the UK Can Learn from Venice’s Everyday Flooding

Flooding in the UK is still widely framed as an abnormal disruption — a storm, a breach, an exceptional failure. Media narratives emphasise “record-breaking” rainfall and “once in a generation” events. Yet official modelling tells a more structural story. The…
Posted on 23rd February, 2026
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New Homes in Flood Risk Areas: Is 11% Really Evidence of Planning Failure?

On its own, the one-in-nine figure does not prove that planning has failed. When Aviva reported that 11% of new homes in flood risk areas were built where flooding is a medium or high risk, the headline landed as a…
Posted on 23rd February, 2026
, in NPPF 
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Types of Flooding Explained: Sources of Flood Risk

Flooding can arise from several different sources, and understanding the types of flooding that may affect a site is an essential part of assessing flood risk for property, land and development proposals. While many people associate flooding primarily with rivers…
Posted on 19th February, 2026
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What Is Infrastructure Flooding? Causes, Risks and Planning Implications

Flooding can also occur when water escapes from man-made infrastructure such as canals, water mains, culverts or other engineered systems. This type of flooding is often referred to as infrastructure flooding or artificial source flooding. Infrastructure flooding occurs when water…
Posted on 18th February, 2026
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What Is Reservoir Flooding? Causes, Risks and Planning Implications

Flooding can occur from the failure or overtopping of large raised water bodies such as reservoirs. This type of flooding is known as reservoir flooding. Reservoir flooding occurs when water stored behind a reservoir dam or embankment is suddenly released…
Posted on 18th February, 2026
, in Dam 
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What Is Sewer Flooding? Causes, Risks and Planning Implications

Flooding can also occur when sewer systems are unable to carry or contain the volume of water entering them. This type of flooding is known as sewer flooding. Sewer flooding occurs when wastewater or stormwater escapes from the sewer network…
Posted on 18th February, 2026
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What Is Groundwater Flooding? Causes, Risks and Planning Implications

Groundwater flooding happens when water rises up from beneath the ground rather than spilling in from a river or running across the surface. After long, wet periods the water table — the level below which the ground is saturated —…
Posted on 18th February, 2026
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What Is Tidal (Sea) Flooding? Causes, Risks and Planning Implications

Flooding in coastal areas is often caused by the sea rather than rivers or rainfall. This type of flooding is known as tidal flooding, sometimes referred to as coastal flooding or sea flooding. Tidal flooding occurs when sea water moves…
Posted on 18th February, 2026
, in Sea 
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What Is Fluvial (River) Flooding? Causes, Risks and Planning Implications

Flooding is often associated with rivers overflowing their banks, and this is known as fluvial flooding, sometimes referred to as river flooding. Fluvial flooding occurs when the volume of water flowing through a river channel exceeds its capacity. When this…
Posted on 18th February, 2026
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What Is Pluvial (Surface Water) Flooding? Causes, Risks and Planning Implications

Flooding is often associated with rivers overflowing their banks, but a significant proportion of flooding in the UK occurs away from rivers and coastlines. One of the most common sources is pluvial flooding, also known as surface water flooding. Pluvial…
Posted on 18th February, 2026
, in SuDS 
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Why Am I Still in a Flood Zone After New Flood Defences Have Been Built?

You watch a new flood wall go up, an embankment raised or a storage basin finished after years of planning. Then you open the Environment Agency's Flood Map for Planning and your property is still shown in a Flood Zone.…
Posted on 16th February, 2026
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Why Is My House in a Flood Zone if It Has Never Flooded?

"Why is my house in a flood zone? We have lived here for years and it has never flooded." It is one of the most common questions homeowners ask, and the answer is simpler than the mapping makes it look.…
Posted on 16th February, 2026
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Does the Jubilee River Increase Downstream Flood Risk?

The Jubilee River is an 11.6 kilometre flood relief channel on the River Thames, opened in 2002 to lower flood levels in Maidenhead, Windsor and Eton. Because it moves a large volume of water from one part of the river…
Posted on 12th February, 2026
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River Thames Scheme delays raise questions over flood defence delivery

Recent political intervention and growing local frustration over the River Thames Scheme have brought long-running questions about flood defence delivery sharply back into focus. What began as a technically ambitious response to well-understood flood risk is increasingly becoming a case…
Posted on 9th February, 2026
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How a £12.6m flood scheme is unlocking development in Stoke-on-Trent

The Fowlea Brook Flood Risk Management Scheme in Stoke-on-Trent has been completed by the Environment Agency, delivering a major upgrade to the city’s flood defences. The scheme is intended to reduce flood risk for 333 homes and businesses and represents…
Posted on 6th February, 2026
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How Increasing Rainfall Is Changing Flood Risk in the UK

Flooding across the UK is becoming more frequent, more widespread and easier to trigger, and increasing rainfall is the reason. The shift is driven less by wilder storms than by a wetter atmosphere and wetter autumns and winters, which together…
Posted on 5th February, 2026
, in SuDS 
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Flood Risk at Britain’s Landmarks: What Six Famous Sites Reveal

Flood risk at the UK’s most famous landmarks is rising, and the pattern it reveals matters far beyond the sites themselves. In its Building Future Communities 2025 report, Aviva uses a handful of Britain’s best-known places — Hampton Court Palace,…
Posted on 4th February, 2026
, in Data 
, in SuDS 
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Managed retreat from flood risk at Clydach Terrace

Sixteen flood-prone homes on Clydach Terrace in Ynysybwl, Rhondda Cynon Taf, are set to be purchased and demolished by the local authority, bringing an end to years of repeated flooding, fear and uncertainty for the people who live there. Publicly,…
Posted on 3rd February, 2026
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Storm Chandra flooding hits UK weeks after Storm Goretti

Storm Chandra is causing widespread flooding across the UK and Ireland, marking the second major flooding event of 2026, before the end of January. Flooding and disruption have continued into Wednesday, with impacts persisting across several regions. The storm follows…
Posted on 28th January, 2026
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The CIRIA SuDS Manual (C753): What It Is and How to Use It in 2026

The CIRIA SuDS Manual (C753) is the UK's principal design guide for sustainable drainage systems: 968 pages covering how SuDS should be planned, designed, built, operated and maintained. CIRIA published it in November 2015 to replace the original 2007 manual,…
Posted on 26th January, 2026
, in SuDS 
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Why Lincolnshire Is Trialling a New Approach to Flood Warnings

In parts of Lincolnshire, flooding is a familiar experience that does not always come with a warning. Streets flood, gardens fill, groundwater emerges, and yet many locations sit outside the areas where the national warning service is designed to operate.…
Posted on 23rd January, 2026
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Climate Change Allowances for Flood Risk Assessments: A 2026 Guide

Climate change allowances are the figures the Environment Agency expects you to build into a flood risk assessment so that a development stays safe over its whole lifetime, not just on the day it is built. They convert what we…
Posted on 21st January, 2026
, in NPPF 
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When Do You Need a Flood Risk Assessment (FRA)?

Do I need a flood risk assessment? For most people the answer turns on two things: where the site sits on the Environment Agency’s flood map, and what you plan to do with it. A flood risk assessment, or FRA,…
Posted on 19th January, 2026
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What the Gladman Judgment Means for the Sequential Test

Flood risk, planning appeals and the High Court The High Court’s judgment in Gladman Developments Ltd v Secretary of State for Housing, Communities and Local Government and Lancaster City Council (15 January 2026) is an important decision on flood risk,…
Posted on 16th January, 2026
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Does Flood Risk Affect House Prices? UK Evidence (2026)

Flood risk has stopped being a footnote in the UK housing market. Buyers check whether a property sits in a flood risk area before they offer, lenders weigh flooding when they price a mortgage, and sellers know that flood history…
Posted on 16th January, 2026
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Guildford Flood Alleviation Scheme: flood risk, history and consultation

Guildford’s relationship with flooding is long-standing and well documented. The town sits at a natural constriction on the River Wey, where historic development, bridges and river training have progressively reduced the space available for flood flows. Significant flooding was recorded…
Posted on 14th January, 2026
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Construction Stage Flood Risk and the Lessons from Attleborough

Flood risk is most often scrutinised at the point a planning application is determined. Flood Risk Assessments are prepared, mitigation is proposed, and decisions are taken on the assumption that what has been assessed on paper is what will exist…
Posted on 13th January, 2026
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Flood risk before buying a property: how to check and understand it

Posted on 12th January, 2026
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How AI Could Improve Flood Risk Management

Artificial intelligence is starting to reshape flood risk management, though not in the way the headlines suggest. AI in flood risk management works best as a support layer: it can sharpen flood forecasting, widen warning coverage and speed up the…
Posted on 5th January, 2026
, in AI 
, in NPPF 
, in SuDS 
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Below Standard Flood Defences: Protected on Paper, Vulnerable in Practice

Recent inspections have found flood defences below target condition across large parts of England, including places with long and well-documented flood histories. From historic cities to chalk stream catchments, inspection data shows that thousands of flood defence assets are operating…
Posted on 24th December, 2025
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Shropshire Canal Failure: What the Whitchurch Canal Breach Means for Flood Risk and Planning

A canal breach near Whitchurch, Shropshire, in the early hours of 22nd December 2025 drew national attention. The scale of the collapse was part of it, but so was what the failure revealed about how the UK manages, and plans…
Posted on 23rd December, 2025
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Flooding Across England and Wales Ahead of Christmas 2025

In the weeks leading up to Christmas 2025, large parts of England and Wales experienced prolonged and disruptive flooding. Rather than a single storm-driven incident, the period was marked by repeated rainfall, saturated ground conditions and flooding that often persisted…
Posted on 22nd December, 2025
, in NPPF 
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Soils, Flooding and Resilience | World Soil Day

World Soil Day, observed each year on 5th December, highlights the critical importance of soils to environmental systems that are often taken for granted. Led by the UN Food and Agriculture Organization through the Global Soil Partnership, it focuses global…
Posted on 5th December, 2025
, in SuDS 
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RNLI Flood Rescue and UK Emergency Response

The Royal National Lifeboat Institution (RNLI) is widely recognised for its lifesaving work at sea. Increasingly, however, it also plays an important role in flood rescue across the UK, supporting emergency response during major inland flooding events. As extreme rainfall…
Posted on 20th November, 2025
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Flood Map for Planning Wales: Flood Zones Explained

The Flood Map for Planning Wales is the official map used to assess flood risk in the Welsh planning system. Produced by Natural Resources Wales (NRW), it shows where land is at risk of flooding from rivers, the sea, and…
Posted on 14th November, 2025
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TAN 15 Explained: Flood Risk and Development in Wales

Technical Advice Note 15 – Development, Flooding and Coastal Erosion (TAN 15) – is Welsh Government planning guidance that sets out how flood risk and coastal erosion must be addressed in the planning system in Wales. The current version came…
Posted on 12th November, 2025
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Resilience by Repetition: 25 Years on from the 2000 Severn Floods

When the River Severn burst its banks in the autumn of 2000, it wasn’t the first time Shrewsbury, Bewdley or Ironbridge had flooded — but it was the one that changed everything. Streets became rivers, businesses closed overnight, and entire…
Posted on 5th November, 2025
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York and the River Ouse Remember the Floods of 2000

In November 2000, the River Ouse rose higher than living memory. In a matter of hours, the postcard beauty of York’s riverside was replaced by a scene of eerie stillness: pub benches half-submerged, streetlamps reflected in brown floodwater, rescue boats…
Posted on 5th November, 2025
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Runways Underwater: The 2000 Crawley and Gatwick Floods

The final months of 2000 delivered what the Environment Agency later called “the wettest autumn in nearly 300 years”. Successive Atlantic depressions rolled in through October and November, dumping record-breaking rainfall across much of England and Wales. By early November,…
Posted on 4th November, 2025
, in SuDS 
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25 Years On: The Legacy of the Lewes Floods

This year marks 25 years since the historic Lewes floods. In the autumn of 2000, intense and prolonged rainfall overwhelmed the River Ouse, sending torrents of water through the heart of Lewes. Within hours, streets were submerged, homes and businesses…
Posted on 3rd November, 2025
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Who Is Responsible for Managing Flood Risk in England?

Flooding in England can happen anywhere — from rivers, the sea, surface water, groundwater, sewers or even small streams that overflow after heavy rain. Because these sources of flooding behave differently, no single organisation is responsible for everything. Instead, flood…
Posted on 31st October, 2025
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Loughborough Study Shows Sediment Ponds Aid Flood Control

Recent research from Loughborough University has highlighted how sediment ponds—sometimes called “mini-wetlands” — can help farmers protect their land, improve water quality and strengthen natural flood resilience. While the study focused on agricultural benefits, the implications reach far wider. As…
Posted on 31st October, 2025
, in SuDS 
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Paving Over Gardens: Flood Risk and the Rules You Need to Know

Paving over gardens is one of the quiet drivers of urban flooding in the UK. When grass and planting are replaced with concrete, tarmac or block paving, rainwater can no longer soak into the ground. It runs off into drains…
Posted on 30th October, 2025
, in SuDS 
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Flood Resilience in England: A Wake-Up Call

Flooding in England is no longer a localised hazard — it is a national systems challenge. The House of Commons Environmental Audit Committee’s latest report, Flood Resilience in England (HC 550, October 2025), delivers a blunt assessment: the country remains…
Posted on 29th October, 2025
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How to Drive Through Flood Water

Knowing how to drive through flood water safely comes down to one rule above all others: if you can avoid it, don't drive through it at all. The Environment Agency advises drivers not to enter water that is moving or…
Posted on 28th October, 2025
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Integrating Rainwater Harvesting into SuDS Design

Collecting rainwater isn’t a new idea. Many of us already do it at home, using a simple water butt to gather rain off the roof and reuse it on the garden. That, in essence, is what rainwater harvesting is: catching…
Posted on 24th October, 2025
, in SuDS 
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Green SuDS: Nature-Based Drainage in Modern Planning

Green SuDS are nature-based drainage features — swales, rain gardens, basins, green roofs and wetlands — that manage rainwater using vegetation and soil rather than buried pipes and tanks. Across England's planning system they have become the preferred form of…
Posted on 22nd October, 2025
, in SuDS 
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NAFRA2 and Home Sales: Rising Flood Awareness

When the Environment Agency released its latest National Assessment of Flood Risk for England (NAFRA2) in early 2025, the updated dataset immediately began reshaping how flood risk is understood — and, increasingly, how property is bought and sold. Many homeowners…
Posted on 20th October, 2025
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What Is CIWEM? The Chartered Institution of Water and Environmental Management Explained

If you have ever read a flood risk assessment or a drainage strategy and seen the letters MCIWEM or C.WEM after a consultant's name, you have already met CIWEM. It is the professional body that sits behind those letters, and…
Posted on 17th October, 2025
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Planning for Flood Risk: The NPPF Explained

The National Planning Policy Framework (NPPF) is the document that decides how flood risk is handled when land is developed in England. It tells councils to keep new building away from the places most likely to flood, to test the…
Posted on 16th October, 2025
, in NPPF 
, in SuDS 
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Planning is falling behind flood risk, says Aviva

Aviva’s Building future communities analysis presents a stark assessment of flood risk in England. By the middle of the century, millions more properties could be exposed to flooding, with risk increasingly driven by surface water flooding rather than rivers or…
Posted on 15th October, 2025
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Defra Confirms £10.5bn Flood Defence Funding Overhaul

In April, Defra’s consultation proposing a major overhaul of England’s flood funding system was launched, aiming to simplify access to investment and accelerate protection for communities most at risk. That consultation has now concluded, and the government has confirmed that…
Posted on 14th October, 2025
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Flood Action Week: How Prepared Are We?

This week marks Flood Action Week – an annual Environment Agency initiative encouraging communities across England to take simple, proactive steps to prepare for flooding. Running from 13–19 October 2025, the campaign highlights how climate change is increasing the frequency…
Posted on 13th October, 2025
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CIRIA Launches Guide for Early SuDS Planning

Posted on 6th October, 2025
, in SuDS 
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UK Tree Planting Shortfall Weakens Flood Resilience

New statistics confirm the UK is on course to miss critical tree planting targets by 2030. The latest Forestry Statistics 2025: Analysis report warns that, at current rates, the country will fall behind the Committee on Climate Change’s (CCC) trajectory…
Posted on 26th September, 2025
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Floods in a Drought: Why Drought Causes Flooding in the UK

Floods in a drought sound like a contradiction, but the two arrive together more often than people expect. When the ground has been baked hard by weeks of dry weather, it cannot absorb a sudden downpour. The rain runs straight…
Posted on 11th September, 2025
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Flood Map for Planning: What It Shows and How to Use It

The Flood Map for Planning is the Environment Agency's official online map of flood risk from rivers and the sea across England, used in the planning system to decide whether flooding needs to be assessed for a site. It is…
Posted on 29th August, 2025
, in NPPF 
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Flood Zones Explained: Zone 1, 2 and 3 (England)

Flood zones are how the planning system in England describes the chance of a site flooding from rivers or the sea. They sort land into Flood Zone 1, 2 or 3 (with Zone 3 split into 3a and 3b), from…
Posted on 28th August, 2025
, in NPPF 
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Declaring flooding when selling a house: TA6 rules, the law and how to check flood history

If a home you are selling has ever flooded, you have to say so. When selling a property in England and Wales you have to declare flooding, because flood history is one of the material facts a seller must disclose,…
Posted on 27th August, 2025
, in Law 
, in TA6 
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Ofwat Abolished: What IWC Report Means for Planning

England and Wales’s water sector is at a crossroads. Years of underinvestment, regulatory fragmentation and inconsistent planning alignment have combined to produce a sector-wide confidence crisis — one now spilling directly into the planning system. While water is far from…
Posted on 21st July, 2025
, in IWC 
, in SuDS 
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Texas Flooding: UK Lessons in Planning and Climate Resilience

The floods have been described as among the worst natural disasters in Texas history by officials and multiple media outlets. As of 10 July, at least 120 people are confirmed dead and 173 remain missing, with Camp Mystic, an all-girls…
Posted on 10th July, 2025
, in FEMA 
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What Is the Flood Forecasting Centre (FCC)?

Flooding remains one of the UK’s most significant natural hazards – and as climate change accelerates, so too does the frequency and intensity of flood events. Against this backdrop, one organisation plays a quietly critical role in helping the country…
Posted on 8th July, 2025
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Mayor of London Issues Urgent Basement Flash Flood Warning

As this year’s London Climate Action Week came to a close, the Mayor of London issued a direct and sobering warning to thousands of residents living in basement flats: be prepared for flash floods. As Sadiq Khan put it, “The…
Posted on 1st July, 2025
, in SuDS 
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Thames Water Crisis: Sewage, Fines and Flood Risks

Thames Water, the UK's largest water utility, is embroiled in a deepening crisis, raising serious concerns about the sustainability of the privatised water industry. The company is battling on multiple fronts — staggering debt, regulatory fines, public outcry, and the…
Posted on 28th May, 2025
, in SuDS 
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Planning with EA Flood Risk Standing Advice

Posted on 23rd May, 2025
, in NPPF 
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Hosepipe Bans Loom Without Smarter Planning

As southern England inches toward what could become the driest spring in over a century, the warnings from regulators and water companies are unmistakable. Hosepipe bans may not yet be in place, but the message is clear: conserve water now,…
Posted on 19th May, 2025
, in SuDS 
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Oxford Flood Alleviation Scheme (OFAS) Approved

The Oxford Flood Alleviation Scheme (OFAS) is a £176 million flood defence project, led by the Environment Agency, that will reduce flood risk to more than 1,600 homes and businesses across Oxford and the surrounding villages. At its heart is…
Posted on 16th May, 2025
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VE Day and the Weaponisation of Flooding in the Netherlands

In the closing weeks of the Second World War, as Nazi Germany faced certain defeat, its occupying forces in the Netherlands turned water against the people it had once kept safe. The deliberate breaching of dikes and the release of…
Posted on 8th May, 2025
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Ordinary Watercourse Consent (OWC) Explained

Posted on 28th February, 2025
, in EA 
, in IDB 
, in OWC 
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Foul, Surface & Combined Sewers: What to Know

When planning a new development, one crucial factor that developers, architects and planners must consider is how wastewater and surface water will be managed. The type of sewer infrastructure present on or near a site can significantly influence the design,…
Posted on 25th February, 2025
, in SuDS 
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Thames Tideway Tunnel: London’s Super Sewer Now Open

After ten years of construction, the Thames Tideway Tunnel is fully connected, with all 21 connections to London’s Victorian sewer system complete. The tunnel has already prevented 5.5 million cubic metres of sewage from entering the Thames—equivalent to 2,200 Olympic-sized…
Posted on 17th February, 2025
, in SuDS 
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Thames Barrier: London’s Flood Defence Against Tidal Surges

The Thames Barrier is the largest movable flood barrier protecting London, holding back the tidal surges that would otherwise push up the estuary and into the heart of the city. It spans 520 metres of the River Thames near Woolwich…
Posted on 14th February, 2025
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Natural Flood Management: EA Research Deep Dive & Analysis

Natural flood management (NFM) does work, but the honest answer is more useful than a simple yes. The Environment Agency's latest evidence shows that measures which slow, store and filter water across a catchment can measurably lower flood peaks, especially…
Posted on 13th February, 2025
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Natural Flood Management Schemes in the UK: How Real Projects Slow the Flow

Natural flood management schemes use woodland, wetlands, leaky dams and better-managed soils to slow and store rainwater across a catchment, taking the edge off flood peaks downstream. Across the UK, councils, rivers trusts and landowners now run dozens of these…
Posted on 3rd February, 2025
, in NFM 
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Flood Return Periods & Annual Probability Explained

A flood return period is the average length of time between floods of a given size. That sounds like a timetable, but it is really a statement of probability. A "1-in-100-year flood" does not arrive once a century. It means…
Posted on 20th December, 2024
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Flood Risk Activity Permits (FRAP): The Complete 2026 Guide

A flood risk activity permit (FRAP) is the environmental permit you need before carrying out work on, under, over or near a main river, a flood defence, a sea defence or a floodplain in England. It is issued by the…
Posted on 6th September, 2024
, in EA 
, in FRAP 
, in NRW 
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Main Rivers and Ordinary Watercourses: A Guide for Planning

Every river, stream, brook and ditch in England and Wales is legally either a main river or an ordinary watercourse, and the difference decides who regulates it, who maintains it, and whose consent you need before you build near it.…
Posted on 5th September, 2024
, in EA 
, in FRAP 
, in NRW 
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Boscastle 2004 Floods: Lessons for a Wetter Climate

On 16 August 2004, a torrent of water tore through the Cornish village of Boscastle. What began as a humid summer afternoon became one of the most dramatic and widely televised flood events in modern British history. Within hours, cars…
Posted on 16th August, 2024
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Flood Risk at Football Stadiums: Why Grounds Flood and What It Means

Flood risk at football stadiums has moved from a rare freak event to a planned-for hazard. Research for the Rapid Transition Alliance found that 23 of the 92 English league grounds, close to one in four, could face partial or…
Posted on 30th November, 2023
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The Great Flood of 1968: causes, the towns it hit, and the risk today

In the middle of September 1968, much of South East England disappeared under water. Two days of near-constant rain, the worst of it on Sunday 15 September, turned quiet rivers into torrents and turned high streets into channels you could…
Posted on 14th September, 2023
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Cleaning Up After a Flood: A UK Step-by-Step Recovery Guide

Posted on 23rd August, 2019
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Beavers and Flooding: Do Beaver Dams Reduce Flood Risk?

For most of the last 400 years, beavers were missing from Britain, hunted out for their fur, meat and scent glands. Now they are back, and the policy around them has changed faster in the last two years than in…
Posted on 19th February, 2018
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What Is a Weather Bomb? Explosive Cyclogenesis Explained

A weather bomb is the informal name for a storm whose central pressure drops by at least 24 millibars in 24 hours, a process meteorologists call explosive cyclogenesis. The result is a deep, fast-developing area of low pressure that brings…
Posted on 22nd January, 2018
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How to avoid a Summer Festival Flood

There's no Glastonbury this year. Worthy Farm is taking its fallow year, and part of the reason is the ground itself: it needs a season without 200,000 pairs of wellies compacting it. The rest of 2026 is very much on,…
Posted on 22nd June, 2017
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Are Amphibious houses the answer to flood prone areas?

An amphibious house rests on ordinary foundations for most of its life. When floodwater arrives, the building rises within a purpose-built dock and floats, held in place by vertical guide posts. As the water recedes, it settles back down. The…
Posted on 1st March, 2017
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Communities Affected by Groundwater Flooding in the UK

Groundwater flooding is not spread evenly across the country. It clusters in particular communities, almost all of them sitting on or just downstream of the Chalk. Parts of Dorset, Hampshire, Berkshire, Oxfordshire, Kent, Wiltshire, Surrey and West Sussex are repeatedly…
Posted on 29th September, 2015
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How to protect your home from flooding: a UK homeowner’s guide

You cannot stop a river rising or a storm drain backing up. What you can decide is how much of that water reaches your rooms, and how much it costs you when it does. Knowing how to protect your home…
Posted on 25th September, 2015
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Building on Floodplains: A Developer’s Guide to the 2026 Rules

Building on floodplains is not banned in England, but whether a scheme gets consent comes down to three things: the flood zone the land sits in, the type of development proposed, and the strength of the flood risk evidence submitted…
Posted on 18th September, 2015
, in NPPF 
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