Planning with EA Flood Risk Standing Advice

The Environment Agency's flood risk standing advice is national guidance that lets a local planning authority in England decide a planning application on flood risk without consulting the Environment Agency case by case. Written out in full it is the Environment Agency standing advice on flood risk, and most people in the planning system shorten it to EA standing advice, or to FRSA. It applies to lower-risk, lower-complexity development. It does not remove the need for a flood risk assessment. It fixes what that assessment has to prove, and landing on the wrong side of that line, or writing to guidance that has since been replaced, is one of the commonest reasons a perfectly ordinary application sits in validation for a month longer than it should.

Two things have changed since most consultants last read it, and both matter. The guidance was rewritten on 28 May 2026, and it now comes in three separate gov.uk documents rather than one. Then the August 2026 National Planning Policy Framework took effect on 17 August 2026 and renumbered the policy the standing advice sits on top of. The standing advice has not caught up, which leaves anyone writing a report this autumn reading the Agency's reading of a Framework that has since been rewritten, and deciding for themselves which of the two to follow.

The standing advice was last updated on 28 May 2026. The Framework it interprets was replaced on 17 August 2026. As of today the two do not match.

What is the Environment Agency's flood risk standing advice?

Flood risk standing advice is published guidance from the Environment Agency that states its position in advance, so a local planning authority can apply it to a qualifying application instead of writing to the Agency for a bespoke response. It applies in England only, it sits alongside the National Planning Policy Framework and the Planning Practice Guidance on flood risk and coastal change, and it covers most applications where flood risk is a live issue without being a serious one.

The word "standing" carries the meaning. The advice stands ready to be applied to any qualifying application. Neither the applicant nor the case officer waits for a reply. Where a proposal falls outside its scope, the authority consults the Environment Agency as a statutory consultee instead. Work out which side of that line your site sits on before any assessment work starts. It is the most useful hour you will spend on the whole application, because it sets the scope, the cost and the programme of everything that comes after it, and getting it wrong means paying twice. Our guide to the Environment Agency's role in flood risk and planning covers the wider relationship.

Standing advice applies across the ordinary application types:

• Full and outline applications. Including reserved matters.
• Change of use. Subject to the vulnerability rules set out below.
• Permitted development. Prior approval for flood risk under certain permitted development rights.
• Permission in principle. And technical details consent.
• Other consents run alongside. Work in, over or near a watercourse may need a separate permit, and the Agency's guidance on rights and roles for a watercourse sets out when.

If the route is already clear and you need the assessment written to it, our consultants prepare a flood risk assessment for planning scoped to whichever route your site falls under, with a quote back within the hour.

Which standing advice document applies to you?

There are three gov.uk documents, not one, and they do different jobs. Most of the objections we see trace back to one mistake. The applicant read the local planning authority version and assumed it told them what to submit. It does not. It tells the case officer when to pick up the phone, which is a different question from what belongs in your report, and answering the first one does nothing to answer the second.

All three carry a last-updated date of 28 May 2026, but the change made on that date was different in each. The applicant guidance had its "What to include in your FRA" sections rewritten. The authority guidance had its "Research the development site" section updated. If you are writing the assessment, the applicant document governs your report.

Are you on the minor extensions route or the vulnerable development route?

The applicant guidance splits standing advice into two routes, and they ask for materially different things. A minor extension follows a short route covering what to include, floor levels, extra resistance and resilience measures, and any other permissions needed. A vulnerable development follows a longer route that adds the sequential and exception tests, access and escape, and surface water management on top of all that.

A minor extension, for this purpose, is a householder or non-domestic extension creating no more than 250 square metres of floor space. That definition does a lot of work: it is what separates a short assessment from a full site-specific report, and because it is drawn from floor space created rather than from the size of the building the extension is attached to, a proposal can cross it in ways that surprise people.

The 250 square metre threshold is measured on floor space created, not on the finished size of the building. A large extension to a small house can still sit on the minor route.

Development class matters too. It governs whether the authority may use standing advice at all, and because the guidance defines the three classes precisely, the same site can end up needing a full Environment Agency consultation or nothing more than standing advice depending on nothing but which class the proposal falls into.

When does your council have to consult the Environment Agency instead?

The authority consults the Environment Agency where a proposal falls outside the scope of standing advice, and applies standing advice itself where it falls within. The Agency is a statutory consultee for higher-risk development under Schedule 4 of the Town and Country Planning (Development Management Procedure) (England) Order 2015. The triggers are written as specific tests rather than left to judgement, which is helpful, because it means you can settle the question yourself before anyone has spent a fee.

• Within 20 metres of a main river. Any development, including a change of use and minor development, in any flood zone. Culverted main rivers count, the Main River Map is the place to check, and work in the channel itself may also need a flood risk activity permit.
• Major or non-minor development in Flood Zone 2, 3 or 3b. Our explainer on flood zones 1, 2 and 3 sets out the bands. Minor extensions and qualifying changes of use stay on standing advice.
• Higher-vulnerability uses. 'Essential infrastructure' and 'highly vulnerable' development, plus the named 'more vulnerable' uses (landfill, waste facility sites, caravan and camping sites) and the 'less vulnerable' ones (waste treatment, mineral processing, water treatment and sewage treatment) the guidance calls out by name.
• Critical drainage areas. Development above minor scale in an area with critical drainage problems, even in Flood Zone 1.

In Flood Zone 1, standing advice usually applies unless the site is within 20 metres of a main river or, above minor scale, in a critical drainage area. Where the authority's Strategic Flood Risk Assessment shows increased future risk, it treats the site as though it were in Flood Zone 2. 'Water compatible' uses such as docks and water-based recreation normally stay within standing advice.

Consultation is not a delay in itself, and treating it as one leads people to contort a scheme to stay inside standing advice when a three-week Environment Agency response would have cost less than the redesign did. The Environment Agency works to a 21-day statutory deadline, and its business plan for 2025 to 2026 sets a target of responding to 95% of planning consultations and pre-application enquiries inside that window. What costs time is an assessment that arrives incomplete, because the twenty-one days start again on the resubmission and the application drops to the back of a caseload that has moved on without it. If an objection has already landed, our note on resolving an Environment Agency objection sets out the recovery routes.

What floor levels does standing advice require?

Standing advice gives a number, and it is the number most assessments get wrong. Floor levels should be set at least 600 millimetres above the estimated flood level. That 600 millimetres is freeboard: the margin that absorbs modelling uncertainty, wave action, and the gap between a predicted level and a real one.

The reference point is where the arithmetic goes astray. The guidance asks for three levels. The 600 millimetres is measured above whichever of the three is highest, which is not always the flood level.

1. Establish the average ground level of the site. Surveyed, not scaled off mapping.
2. Establish the ground level of the access road or roads. On a road-fronted plot this is often the highest of the three.
3. Establish the estimated flood level from rivers or the sea, including the climate change allowance over the development's lifetime.
4. Take the highest of the three and add 600 millimetres. That is the minimum finished floor level.
5. Justify any reduction. Where there is a high level of certainty about the estimated flood level, the 600 millimetres may drop to 300. Certainty has to be demonstrated, not asserted.

Where uncertainty in the flood level is substantial, the freeboard goes up rather than down. The 600 millimetres is a floor, not a ceiling.

Every level should be referenced to Ordnance Datum so heights read consistently across the drawings, the assessment and any planning condition. Choosing the right climate change allowance is its own decision, and the published allowances vary by development type, vulnerability and river basin district. Where mitigation is agreed, a condition should name the measure, such as a minimum finished floor level in metres above Ordnance Datum, rather than requiring the assessment to be implemented in general terms. A vague condition is far harder to discharge than a precise one.

What flood resistance and resilience measures does the Environment Agency expect?

Standing advice asks a design to do two things. Keep flood water out where it can, and recover quickly where it cannot. The measures it names are specific, and a case officer working through a standing-advice assessment will look for them by name rather than for a general statement of intent.

• Low-permeability materials. To at least 600 millimetres above the estimated flood level, matching the freeboard.
• Flood-resistant openings. Doors, windows and other openings resistant to the same 600 millimetres.
• Resilient internal finishes. Materials such as lime plaster to the same height, so the fabric dries out rather than holding water.
• Raised services. Electrical equipment, sockets and consumer units set above the flood level.
• Drainage and drying. Provision for water to drain away, and access to dry and clean the affected fabric.
• Non-return valves. Protection against backflow through the drainage system.

The guidance is blunt about one option. Temporary and demountable flood barriers are not appropriate for new buildings. They depend on a warning being issued, somebody being there to act on it, and enough time between the two, and none of those three can be relied on across a design life measured in decades. Barriers still have a place in a retrofit. They are no substitute for designing the problem out. The CIRIA code of practice for property flood resilience is the reference the guidance points to for the detail.

What must a standing-advice assessment show about access and escape?

For a vulnerable development, standing advice asks for a safe route of access and escape set above the estimated flood levels, connecting the site to an area away from current or future flood risk. That means a demonstration on a drawing, with levels on it and a route you could walk, rather than a paragraph of reassurance about the site being close to higher ground.

Three points decide most of these. A single-storey building needs an identified area of refuge, because there is no upper floor to retreat to. A basement needs a clear route out that does not run through the flooded level. Neither is difficult to design. Both are easy to forget. And the assessment has to show that occupants could evacuate ahead of an extreme flood, meaning the 0.1% annual probability event with a climate change allowance, rather than during one. Where evacuation is central to the case, a flood warning and evacuation plan is normally the document that carries it.

Access and escape is assessed against the 0.1% annual probability event plus climate change, a rarer flood than the one that sets the floor levels.

When does standing advice require a sustainable drainage strategy?

A sustainable drainage strategy is expected, either as a standalone document or inside the flood risk assessment, for development that could affect drainage on or around the site, or that sits in an area at risk of flooding from rivers, the sea or surface water. This is the requirement most often missing from an assessment written before 2025, and it is now the commonest single cause of a drainage holding objection landing on an application that is otherwise perfectly sound.

• Design to the national standards. Schemes must follow the national standards for sustainable drainage systems published in 2025, which Policy F8 of the August 2026 Framework makes mandatory rather than advisory. Our guide to what the 2025 SuDS standards require works through them.
• Major development adds two duties. Minimum operational standards and maintenance arrangements have to be set out, not left to a condition.
• The LLFA is consulted. The authority consults the Lead Local Flood Authority, designated under section 6 of the Flood and Water Management Act 2010, on surface water drainage for major development, separately from anything the Environment Agency does.
• Local requirements sit on top. The local plan, the local flood risk management strategy, any surface water management plan and the authority's own SuDS guidance all still apply.

Our guide to what drainage information is needed for planning permission covers the supporting documents, and a surface water drainage strategy is the deliverable where the scheme needs designing rather than describing.

How do the sequential and exception tests work under standing advice?

Standing advice does not switch off the sequential test. The test applies to major and non-major development where any proposed building, access or escape route, land-raising or other vulnerable element sits in Flood Zone 2 or 3, in the functional floodplain, within the flood zones plus climate change extent, at surface water risk, or exposed to another source of flooding. The exception test follows where the vulnerability classification and the zone combine to require it.

Two of those exemptions changed in August 2026. The surface-water-only exemption now sits in Policy F5(2)(b), and it turns on the assessment "clearly" demonstrating lifetime safety, which is a materially higher bar than the earlier wording and shifts the whole argument onto the quality of the evidence rather than the label on the map. Our guide to the surface water sequential test exemption sets out how to evidence it. The allocated-site exemption is now expressed as sites already sequentially tested through the local plan. The area of search has been capped to the development's likely catchment, which narrows the alternative-sites exercise considerably.

The exception test is required where a use is 'highly vulnerable' in Flood Zone 2, 'more vulnerable' in Flood Zone 3a, or 'essential infrastructure' in Flood Zone 3a or 3b. The classification now sits in Annex F, Table 2 of the Framework, covered in our flood risk vulnerability classification guide. The tests themselves are set out in the sequential and exception tests explained and in our note on applying the sequential test after Mead. Where the evidence has to stand up on appeal, we prepare sequential and exception test reports as standalone documents.

Why does standing advice now scrutinise your flood data?

Since 10 April 2025 the guidance has required an assessment to appraise how suitable the flood risk datasets it relies on actually are. The appraisal has to address three things about each dataset: when it was produced, why it was produced, and its limitations. Our seven steps for doing a flood risk assessment shows where that sits in the method. Quoting a flood zone is no longer enough. You have to justify the evidence behind the zone. Is it the right evidence for this site, at this scale, over the lifetime you are claiming?

That requirement has teeth now because the data underneath it moved. From 28 May 2026 the Flood Map for Planning carries surface water climate change extents to the 2070s and banded surface water depth data. The Environment Agency no longer recommends Check Your Long Term Flood Risk for planning purposes, and the national picture now rests on NaFRA2, published through the Defra data services platform. A dataset that was fine to rely on in 2024 may now be the wrong one.

The Environment Agency puts roughly 6.3 million properties in England at flood risk, 4.6 million of them from surface water. Surface water is the source older assessments cover least well, and the one the map changes have moved most.

We appraise every dataset we use, whether it comes from the Environment Agency, a local authority or a third party, so an assessment is defensible on the choice of evidence as well as on the technical detail. Our explainers on the Flood Map for Planning, why the long term flood risk map is not a planning tool and Environment Agency data products 4, 5, 6 and 7 go through the sources.

Where standing advice and the August 2026 NPPF now disagree

This is the live problem for anyone writing an assessment in late 2026. The August 2026 Framework took effect on 17 August 2026 and applies to every planning decision from that date, including applications already in the system. The standing advice it interprets was last revised on 28 May 2026, and the Planning Practice Guidance on flood risk and coastal change has not moved since 17 September 2025, which leaves both of them explaining a Framework that no longer exists in the form they describe.

Three documents govern a standing-advice assessment. All three still describe a Framework that was replaced on 17 August 2026.

The gaps are specific rather than general. Each one has a straightforward answer.

• Policy numbering. The guidance still refers to the December 2024 paragraph numbering and to Annex 3. Flood risk policy now sits in Chapter 18 as policies F1 to F9, and the vulnerability classification is Annex F, Table 2.
• The surface water exemption. Policy F5(2)(b) sets a higher evidential bar than the exemption the guidance describes, and the guidance does not yet reflect it.
• SuDS status. The guidance calls design to the national standards an expectation. Policy F8 makes it mandatory, and extends the design and maintenance requirements to all development rather than major schemes alone.

1. Write to the Framework where the two conflict. The Framework is policy; standing advice is the Agency's interpretation of it.
2. Cite the current policy codes. A report quoting an old NPPF paragraph number is not wrong in substance, but it signals an assessment prepared to a superseded document, and case officers notice.
3. Keep the standing advice requirements. The 600 millimetre freeboard, the dataset appraisal and the access and escape demonstration are untouched by the renumbering, and they still govern what the report contains.
4. Date your evidence. Record which version of each document the assessment was written against, and when the data was downloaded.

None of this points to the Agency's consultation role narrowing. The government's response on statutory consultee reform, published on 17 August 2026 in answer to a consultation that ran over the winter, kept the Environment Agency as a statutory consultee, removed only the Gardens Trust and the Theatres Trust, and committed instead to "develop a national triage system to support early identification of safety critical or strategic cases". Expect cases to be sorted faster, not fewer of them to be looked at.

What has changed in the standing advice since 2025?

The standing advice is not a static document, and that is where most out-of-date assessments come unstuck. The applicant guidance has been revised five times since March 2025.

Read down that table and two things stand out. The Agency has hardened its expectation of a sustainable drainage strategy, and it has closed the gap between quoting a dataset and justifying one. Both are now enforced through the report rather than through consultation, which is exactly what standing advice was designed to do, and it is why an assessment that would have passed in 2024 can attract a holding objection today without anything about the site having changed.

What this means for your planning application

Standing advice is a shortcut for the many developments that genuinely are low-risk, and a warning sign for the ones that are not. It is one gate among several in the wider flood risk and drainage planning process. Establish the route early and you can scope the assessment correctly, price it properly, and keep a late objection off the file. Applied badly, with stale data, a missing drainage strategy or a floor level measured from the wrong reference point, it produces exactly the delays it exists to prevent.

The bar has risen. Standing advice now asks an applicant to prove that the flood risk and the evidence behind it have been properly considered, and to do it without a consultee looking over the authority's shoulder to catch what has been left out. That is a heavier burden on the report, not a lighter one.

That is the work: scoping the assessment to the route, writing it to the current Framework, and evidencing the data rather than quoting it. We prepare the flood risk assessments and drainage strategies that go with both routes, and the sequential and exception test evidence where the tests apply.

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