Environment Agency - pre application and post permission advice
The Environment Agency provides free pre-planning application advice and would like to hear from you if your proposed development site is:
- is in flood zones 2 or 3 (unless flood risk standing advice applies)
- contains or is close to a ‘main river’
- is on land affected by contamination
- handles waste or hazardous substances (including fuels and oils)
- highlight the site constraints within their remit
- identify any related documents that you will need to submit at the planning application stage
- reference any further assessments, licences or consents that you will require from them
The Environment Agency’s role in development and how they can help
- help you make the most of new development for people and the environment make the most of new development for people and the environment
- guide you through the process
- signpost to more technical advice, including consents and permits you might need
What’s in your backyard?
The Environment Agency offers a range of detailed maps to show various environmental constraints that may affect your development. Maps include:
- groundwater aquifers
- groundwater source protection zones (SPZs)
- flood maps
- main rivers
- river quality
- historic landfill sites
Flood risk assessment (FRA)FRAs will be reviewed for fluvial flood risk by either us or the Environment Agency. Additionally, the lead local flood authority will assess surface water flood risk for major developments.
The Environment Agency will review your FRA for:
- certain sites in flood zone 2
- most sites in flood zone 3
Some applications, such as the majority of householder extensions, will fall under Environment Agency flood risk standing advice (FRSA) and may not need a detailed FRA.
Where your proposed development is covered by FRSA, you should consult our planning department directly to discuss your requirements.
Planning permission may not be granted until the FRA has been approved. See the site-specific flood risk assessment checklist and other advice available in planning practice guidance.
Revised climate change allowances
The Environment Agency published revised climate change allowances in February 2016. You should refer to flood risk assessments: climate change allowances to determine which allowances should be used to assess future flood risk for your development and location.
The revised allowances are based on improved climate science and reflect the catchment characteristics within each river basin district. You must factor the revised climate change allowances into your FRA rather than the previous 20% for peak river flow.
For some development types and locations, it is important to assess a range of risk using more than one allowance. You should email your local Environment Agency office for advice on how to incorporate the new allowances into your FRA.
Flood risk activity permit
If you're proposing to carry out any works within eight metres of the top of bank of a main river, including demolition, construction or storage, you may require a flood risk activity permit, formerly called a flood defence consent.
Some activities are also now excluded or exempt. A permit is separate to and in addition to any planning permission granted. Further details and guidance are available on the GOV.UK website.
You may need an environmental permit for flood risk activities if you want to do work:
- in, under, over or near a main river (including where the river is in a culvert)
- on or near a flood defence on a main river
- in the flood plain of a main rive
- on or near a sea defence
- your development site is known or suspected to be contaminated, including from previous uses such as
- fuel storage
- the development itself is potentially contaminative
Environment Agency guidance states that they often need to object to such applications submitted without a PRA, and cannot satisfy this aspect by planning condition.
- low-flow taps and shower heads
- dual-flush toilets
- water butts in gardens
Ideally, developments should achieve water usage of 110 litres per person per day in line with the government’s technical standards for water efficiency.
Biodiversity and river restoration
If your development site includes a watercourse or water-dependent habitat, such as wet woodland or floodplain marsh, you must always seek to conserve and enhance these habitats and where possible provide new similar habitats.
Watercourses should be left with an appropriately sized, development-free buffer zone on both sides of the channel.
Usually, a minimum of 8 metres on both sides of the watercourse will be required.
You should incorporate green infrastructure as part of your development proposals to provide a network of multi-functional green spaces. These spaces should be capable of delivering a wide range of environmental and quality of life benefits for local communities.