Flood Risk Assessment in Rutland

Our team at Unda prepares flood risk assessments in Rutland for planning, property purchase, mortgage and insurance, and BREEAM, alongside sequential and exception tests and surface water drainage strategies. In every case the work shows that flood risk has been properly understood and that a development or property stays safe for its lifetime without pushing flood risk onto anyone else.

Rutland is England's smallest county, but its flooding is real and recent. The risk here is driven less by one great river than by the way water sheds off the high, poorly draining ground in the west into modest brooks and the River Gwash, the River Chater and the River Welland, overwhelming culverts and drains during storms. We assess every source that matters on your site, then deal directly with the Environment Agency and Rutland County Council as Lead Local Flood Authority on your behalf, guiding architects, planning consultants, developers, landowners, buyers and businesses through to a result.

If you need a quote or want to talk a site through, contact one of our experienced flood risk consultants on 01293 214444.

Flood risk assessment in Rutland at a glance

• Surface water leads the risk. The county's worst recent flooding came from rainfall running off saturated, low-permeability ground into brooks and drains, not from a major river bursting its banks.
• 57 properties across six villages flooded during Storms Babet and Henk and an unnamed storm between October 2023 and January 2024, mostly in the north-west of the county.
• Reports for any situation. Flood risk assessments in Rutland for planning, property purchase, mortgage and insurance and BREEAM, with sequential and exception tests and surface water drainage strategies.
• Flood Zone 1 is not a free pass. Since the 2025 PPG update, surface water risk can trigger an assessment even on a Flood Zone 1 site — and most of Rutland sits in Flood Zone 1.

Check flood risk anywhere in Rutland

Rutland is outlined below. Screen any postcode in the county against Environment Agency data for rivers and sea, surface water and the planning flood zones, with a climate outlook to 2125. It is an indicative first pass, not a substitute for a site-specific assessment.

How flood risk works in Rutland: rivers, the reservoir and geology

Flood risk in Rutland is shaped by three things at once: high, steeply sloping ground in the west, mudstone bedrock that sheds rain rather than soaking it up, and a network of small brooks feeding the River Gwash, the River Chater and the River Welland. The result is fast-rising surface water and brook flooding in storms, rather than the slow, broad river floods seen in larger lowland counties.

Rutland drains almost entirely towards the River Welland and, beyond it, The Wash. The River Gwash rises in the west of the county, is impounded to form Rutland Water at Empingham, and continues east through Tickencote, Great Casterton and Ryhall before joining the Welland below Stamford. The River Chater and the headwaters of the River Eye drain other parts of the county, while small ordinary watercourses such as the Barleythorpe Brook and the Whissendine Brook carry the local runoff behind most of Rutland's recent property flooding. Working out which watercourse drives the risk on a given site, and how quickly it responds, is the heart of a credible assessment for planning.

• Surface water (pluvial). Now the most widespread flood risk in England, and the leading source in Rutland. Intense rain runs off saturated ground and overwhelms drains and culverts in Oakham, Barleythorpe, Langham and Whissendine. Since the 2025 PPG update, surface water on the Flood Map for Planning can trigger an assessment even on a Flood Zone 1 site.
• Rivers (fluvial). The River Welland in the south and the River Gwash in the east have a long record of floodplain flooding, mainly of agricultural land and isolated property. These corridors hold the county's Flood Zone 2 and 3 land, where an assessment is almost always required.
• Ordinary watercourses. Small brooks like the Barleythorpe Brook and Whissendine Brook punch above their weight. A blocked culvert or trash screen can back water up into homes, and they bring riparian ownership duties for anyone whose land contains or adjoins them.
• Groundwater. Limestone and ironstone in parts of the county can hold water that rises into low ground and basements without showing on any national flood map. We assess it within the flood risk assessment, with the monitoring a soakaway or basement needs to pin down a design water table — see how to check groundwater flood risk.

The county's geology is the thread running through all of this. Four of the worst-affected places in the 2023–25 floods — Oakham, Barleythorpe, Langham and Whissendine — sit on the predominantly mudstone ground of the north-west, where poor permeability means rain runs off rather than soaking away. Combine that with the steep slopes of the western county and water levels in the brooks can change rapidly during heavy rain. That same low permeability is why infiltration drainage so often fails here, a point we return to under drainage below.

A history of flooding in Rutland

Rutland's flood record is why the council scrutinises drainage so closely, and why a flood risk assessment in Rutland has to be evidence-led rather than generic. The county's best-known water story is a deliberate one — the flooding of the Gwash valley to create Rutland Water — but the natural floods are the ones that shape planning today.

• 1970s — Rutland Water created. After parliamentary approval in 1970, the Gwash valley near Empingham was dammed to form what was first called Empingham Reservoir. The villages of Nether Hambleton and Middle Hambleton were cleared and submerged, leaving the Hambleton peninsula, and Normanton church was partly encased to survive at the water's edge. Completed in 1976 and owned by Anglian Water, it remains one of the largest artificial lakes in England and supplies around 500,000 people.
• 1947 to 2004 — the Welland floods. Major floodplain flooding along the River Welland was recorded in 1947, 1975, 1998, 2000 and 2004, inundating agricultural land and property along the valley.
• October 2023 — Storm Babet. Babet brought one of the wettest three-day periods on record to the Midlands, saturating catchments and overwhelming brooks and drains across the north-west of the county.
• October 2023 to January 2024 — 57 properties flooded. Across Storm Babet, Storm Henk and an unnamed storm, 57 properties in six villages flooded, predominantly in the north-west. In Whitwell, collapsed pipes, broken gullies and pipework buried beneath private buildings left six homes flooded.
• January 2025 — a major incident. Heavy rain on saturated ground and melting snow on 6 January led to a major incident being declared across Leicester, Leicestershire and Rutland, with hundreds of properties affected across the wider region.

A Section 19 flood investigation by Rutland County Council examined the Babet, Henk and January 2025 events and pointed to failing and poorly maintained infrastructure — constrained culverts, blocked trash screens and collapsed pipework — as much as rainfall totals. The recurring lesson is that the same combination of saturated ground and a blocked watercourse keeps producing the same flooding in the same places.

Ground that floods once tends to flood again. A robust assessment treats Rutland's recorded history as evidence, not background colour.

Do you need a flood risk assessment in Rutland?

You will normally need a flood risk assessment in Rutland for development in Flood Zones 2 or 3, for any site of a hectare or more, and — increasingly — for smaller Flood Zone 1 sites where the council's mapping shows surface water risk. With most of the county in Flood Zone 1, it is surface water rather than a river that usually brings an assessment into play.

• Flood Zones 2 and 3. Land along the Welland and Gwash floodplains. A site-specific assessment is almost always required, and a Sequential and Exception Test may apply.
• Sites of one hectare or more in Flood Zone 1. An assessment is required regardless of the apparent risk.
• Surface water risk in Flood Zone 1. Where the Flood Map for Planning or the council's Strategic Flood Risk Assessment shows surface water risk, an assessment can be required even on otherwise low-risk land — the common trigger in Rutland.
• Critical drainage and cumulative impact. The council flags low-to-moderate surface water issues in and around Oakham; critical drainage considerations can raise the bar on attenuation and exceedance design.
• Change of use or more vulnerable development. Introducing housing or other more vulnerable uses can require an assessment where a less vulnerable use would not.

What your flood risk assessment in Rutland must show

• Risk assessed from every credible source — rivers, surface water, groundwater, sewers and the reservoir — using the Flood Map for Planning and local data.
• An appropriate location, tested against the Sequential Test where policy requires it.
• Safe for its lifetime, once the Environment Agency's climate change allowances are applied — generally 100 years for housing.
• No increase in flood risk elsewhere, with attenuation and, where needed, compensatory storage.
• Residual risk managed, with safe access, egress and finished floor levels. Get one wrong and the application stalls, as our note on LLFA drainage objections shows.

Planning policy and your Lead Local Flood Authority in Rutland

Two kinds of authority set the rules. The Environment Agency leads on the main rivers and on Rutland Water; Rutland County Council, as Lead Local Flood Authority, leads on surface water, groundwater and ordinary watercourses, and is a statutory consultee on surface water drainage for major development. Because Rutland is unitary, that LLFA is the planning authority too, so one council shapes most of what your assessment has to satisfy.

Your assessment and drainage strategy must meet national policy — the NPPF and its Planning Practice Guidance — and Rutland's own framework. The county's Level 1 Strategic Flood Risk Assessment (October 2023) maps every source of flood risk and the effect of climate change, with a more detailed Level 2 assessment prepared for the towns of Oakham and Uppingham. The council's Local Flood Risk Management Strategy sets out how it manages surface water, groundwater and ordinary watercourses, and the River Welland Catchment Flood Management Plan provides the wider river context. Our overview of the role of the LLFA and the Environment Agency's planning role explains how the pieces fit together.

Where a higher-risk site is involved, the Sequential and Exception Tests apply and the right vulnerability classification has to be argued. On drainage, Rutland will judge a scheme against the four pillars of SuDS and the 2025 national standards. Getting the strategy right at the first attempt matters more than ever now that the April 2026 appeal rules place greater weight on the quality of the first submission.

Drainage and SuDS in Rutland

Drainage is where many Rutland applications are won or lost. The county's mudstone geology means rainwater often will not soak away, so a strategy that assumes a soakaway will work, without testing the ground, is the quickest route to a Lead Local Flood Authority objection.

• Test infiltration early. On low-permeability mudstone a soakaway frequently fails. Infiltration testing to BRE Digest 365 shows whether the ground can take water before the layout is fixed — try our free BRE 365 calculator and soakaway geology checker.
• Plan to attenuate. Where infiltration is impractical, runoff has to be stored and released at a controlled rate — basins, tanks or permeable paving — following the discharge hierarchy in the surface water drainage strategy. Our free drainage calculators give a defensible first-pass size.
• Permeable paving with care. It can work on clay-rich ground as a tanked or partial-infiltration system, but only with the right evidence — see permeable paving for planning.
• Discharge conditions. Drainage is often conditioned on a permission, so the detailed scheme that discharges those conditions has to follow through on the strategy.

On Rutland's mudstone, design the drainage around attenuation from the outset and prove infiltration only where the ground supports it — not the other way round.

How Unda helps with flood risk assessment in Rutland

We act as the accurate translation layer between your scheme and the requirements set by the Environment Agency, Rutland County Council and national planning policy. We are experts on the county's flooding, not a generic report mill, and we stay involved past the report to answer objections.

A flood risk assessment in Rutland from Unda assesses every credible source — the Gwash, the Welland and the Chater, down to surface water, groundwater, sewers and any ordinary watercourse such as the Barleythorpe or Whissendine Brook on the boundary — compares modelled flood levels against your proposed floor levels, sets safe access and egress, and recommends mitigation the regulators will accept. Where national maps do not capture a brook or floodplain on your site, we run hydraulic flood modelling to derive the levels the assessment relies on. We are a CIWEM Business Partner with chartered members, and a senior consultant signs off every report. Where the council needs it, the drainage strategy sits alongside the assessment so the two cases stay consistent and an objection has nowhere to land.

Flood risk assessments for every situation in Rutland

Whatever is driving the need — a planning application, a property purchase, an insurer or a BREEAM target — we prepare a flood risk assessment in Rutland to match it, along with the sequential and exception tests and surface water drainage strategies a scheme can call for. Each is shaped around the question in front of you and what the Environment Agency, Rutland County Council or your lender will expect.

• For a planning application. A site-specific assessment that satisfies the Environment Agency and Rutland County Council and keeps a development moving.
• For a property purchase. An independent survey for buyers and conveyancers when a search or lender flags flood risk, looking at the building itself rather than a broad map.
• For insurance. Property-level evidence for brokers and underwriters where cover has been restricted or premiums have risen.
• For BREEAM. An assessment built around BREEAM Pol 03, which rewards how a scheme manages flood and surface-water risk from the outset.
• A sequential and exception test. The planning-policy case that a higher-risk Welland or Gwash site is the right place for a development, prepared with the assessment.
• A surface water drainage strategy and SuDS. How runoff is controlled on Rutland's low-permeability ground, carried through to discharging drainage conditions and starting with preliminary drainage design at outline stage.

The same assessment supports commercial due diligence and business continuity, where flood risk is weighed for a transaction or for keeping an operation running. A flood question can affect house prices and insurance, and a conveyancing search is not the same as a planning-grade assessment.

Local flood risk management and emergency contacts in Rutland

Several bodies share responsibility for flooding in Rutland, and the lead authorities are the most reliable source of warnings and advice. In a flood that threatens life, always call 999.

• Rutland County Council, the Lead Local Flood Authority. The council's flood team leads on surface water, groundwater and ordinary watercourses and takes flood reports — see floods and water, the Level 1 SFRA and the Local Flood Risk Management Strategy.
• Environment Agency. Leads on the main rivers and Rutland Water. Check live warnings and river levels at check for flooding in Rutland, and sign up for flood warnings.
• Anglian (Northern) Regional Flood and Coastal Committee. Sets regional flood-investment priorities for the Welland, Nene and Witham catchments that drain Rutland — the Anglian (Northern) RFCC.
• Leicester, Leicestershire and Rutland Local Resilience Forum. Coordinates the multi-agency response to major flooding under the Civil Contingencies Act — the LLR Resilience Forum.
• Water and sewerage companies. Report flooding from blocked or burst sewers to Anglian Water or Severn Trent, depending on which company supplies the site.
• Screen a location. Use Unda's flood risk map and live river levels map, or the statutory Flood Map for Planning.

The National Flood Forum supports communities at risk of flooding. The numbers below cover the most common emergencies.

Flood risk assessment in Rutland: frequently asked questions