Flood Risk Assessments for Major Residential Development
FRAs, Sequential Test support and SuDS drainage strategies for housing schemes of 10+ dwellings or 1 hectare — engineered to secure LLFA and EA sign-off and keep your site moving.
FRAs for Major Residential Schemes
Major residential development — 10 or more dwellings, or sites of 1 hectare or more — needs a Flood Risk Assessment in every flood zone, together with a surface water drainage strategy the Lead Local Flood Authority will approve as a statutory consultee. Get either wrong and the application stalls on objection.
We deliver the full package: a site-wide FRA, Sequential and (where needed) Exception Test, and a SuDS-led drainage strategy with greenfield run-off rates, attenuation, discharge hierarchy and the LLFA proforma. We design it to be buildable and to survive technical review, so your housing scheme secures permission and discharges its drainage conditions without repeated rounds.
What's included
- Site-wide Flood Risk Assessment
- Sequential & Exception Test
- SuDS drainage strategy (C753)
- Greenfield run-off & attenuation
- Discharge hierarchy & outfall
- LLFA proforma completion
- Finished floor levels & safe access
- Drainage condition-discharge support
When major residential needs an FRA
Scale, hectarage and flood zone all bring statutory requirements into play.
10+ dwellings or 1ha+
Any development of 10 or more homes, or a site of 1 hectare or more, is 'major' and requires an FRA and a drainage strategy — even in Flood Zone 1.
LLFA is a statutory consultee
On major development the LLFA must approve the surface water drainage strategy. A weak strategy is the single most common cause of objections and delays.
Sequential Test
Larger sites in higher flood zones must pass the Sequential Test — steering development to lower-risk land — which we evidence and document.
Phased & outline schemes
We support outline and phased applications with a strategy that fits reserved-matters and condition discharge as the scheme is built out.
Frequently Asked Questions
Related services: SuDS Drainage Strategies • Sequential & Exception Test • Detailed Drainage Design
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++”
Progressing a housing scheme?
Send us the site and unit numbers for a fixed-fee FRA & drainage quote within 24 hours.
Get a Free QuoteOr contact us directly: 07826 705389 •