Flood Risk Assessments & Drainage Strategies in Leeds
Independent flood risk consultants serving Leeds and surrounding areas. Planning-ready FRAs and SuDS drainage strategies from £295, delivered within 3–5 working days.
Flood Risk Assessments in Leeds
Flood Risk Environmental provides Flood Risk Assessments, SuDS drainage strategies and detailed drainage design for planning applications across Leeds and the wider West Yorkshire region.
Leeds has significant fluvial flood risk from the River Aire, with major flooding events in 2015 and 2017 leading to significant investment in flood defences and heightened LLFA scrutiny. Many parts of the city centre and riverside areas are in Flood Zone 3. Leeds City Council has detailed SuDS requirements and a well-established pre-application process for flood risk.
Our reports are prepared by a qualified consultant with over 17 years' experience and written specifically to satisfy the requirements of Leeds City Council as the Lead Local Flood Authority and your local planning authority.
Services in Leeds
- Flood Risk Assessments — from £295
- SuDS drainage strategies for planning
- Detailed SuDS and drainage design
- LLFA SuDS proforma completion (Leeds City Council)
- Sequential and Exception Test submissions
- S23 Ordinary Watercourse Consent
- EA Flood Risk Activity Permit applications
- LLFA drainage objection responses
Flood risk in Leeds
Leeds is defined by the River Aire, which runs through the city centre. The Boxing Day 2015 floods (Storm Eva) caused devastating damage along the Aire — from Kirkstall to the city centre and the wider Aire valley — and prompted the major Leeds Flood Alleviation Scheme. Riverside and city-centre sites frequently fall in Flood Zone 2 or 3, and an FRA must demonstrate safe floor levels, access and, where relevant, that the scheme's defences and any functional floodplain are properly accounted for.
Surface water flooding is a growing issue across the urban area, so drainage strategies discharging at greenfield rates are central to most schemes.
Leeds City Council is the Lead Local Flood Authority. We prepare FRAs and drainage strategies that reflect the Aire flood risk, the Flood Alleviation Scheme and the council's drainage requirements.
Local flood facts — Leeds
- Main watercourses: River Aire and River Wharfe
- Lead Local Flood Authority: Leeds City Council
- Main flood sources: Fluvial (dominant) and surface water
- Key FRA consideration: River Aire fluvial risk and the Leeds Flood Alleviation Scheme
When Do You Need a Flood Risk Assessment in Leeds?
Planning applications in Leeds require a Flood Risk Assessment in the following circumstances:
Development in Flood Zone 2 or 3
Any development in London's Flood Zone 2 or 3 areas requires an FRA. The LLFA will object to applications in flood risk areas without a robust FRA and drainage strategy.
Major Applications (10+ dwellings)
Major planning applications in Leeds — 10 or more dwellings, sites over 0.5ha, or non-residential floorspace over 1,000m² — require an FRA in any flood zone.
Sites Over 1 Hectare in FZ1
Large sites in Flood Zone 1 may require an FRA if over 1 hectare, to demonstrate that drainage is adequate and runoff won't increase downstream flood risk.
LLFA Drainage Conditions
Where Leeds City Council has imposed a pre-commencement drainage condition, we prepare the detailed SuDS design package needed to satisfy the condition and secure approval.
LLFA Drainage Objections
If your Leeds planning application has received a flood risk or drainage objection from the LLFA, we can review it and prepare a technical response to resolve it fast.
Change of Use
Converting commercial buildings to residential use in a flood risk area in Leeds typically requires a new Flood Risk Assessment to confirm future occupiers will be safe.
Frequently Asked Questions
Trusted by Developers, Architects & Planning Consultants
★★★★★ 5.0 from 6 Google reviews
“Antony was great to work with when we needed a Flood Risk Assessment and Emergency Flood Plan. As an architect I would definitely use FRE Consultants again… his report went a good way in helping us get planning permission on a tricky site. Highly recommended.”
“Antony carried out my Flood Risk Assessment and has done a great job. My architect commented that the report was professionally drafted and very easy to follow. I highly recommend Antony's services.”
“Antony carried out a SuDS report for one of our projects and provided an excellent service throughout — quick to respond, clear communication, and a thorough, detailed report within the agreed timescale. We will certainly be using his services on all future projects!”
“Extremely helpful, prompt and friendly service carrying out a Flood Risk Assessment for a home project that required planning permission in a flood risk area… the price was reasonable and given up-front, and the final report was highly professional and exactly as required.”
“I had an extension completed on my house and needed a Flood Risk Assessment for planning. The service received was great and at a competitive cost. We were granted planning after first submission.”
“Nice and quick service. Recommend A++”
Need a Flood Risk Assessment in Leeds?
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