Flood risk assessments for planning across Essex – the tidal Thames estuary, Chelmsford, Colchester, Southend-on-Sea, Canvey Island and the Essex estuaries.
Essex sits at the heart of the Thames Estuary 2100 planning area. TE2100 is the Environment Agency’s 100-year strategy for managing tidal flood risk from Teddington to the North Sea, covering the entire Essex and north Kent coastline. Any development in the tidal Thames corridor south of Essex – from Tilbury and Grays through to Southend-on-Sea and Shoeburyness – must engage with TE2100 policy alongside the relevant borough or district SFRA. The South Essex Level 1 SFRA covers Basildon, Castle Point, Rochford, Southend-on-Sea and Thurrock.
The 1953 East Coast Tidal Surge, one of England’s worst peacetime flooding disasters, is the defining historical event for tidal flood risk across Essex and the Thames Estuary. A storm surge raised tide levels to 5.03m AOD at Southend – the highest ever recorded – overtopping existing defences and flooding large areas of the Essex coast. That event is the reference point for extreme tidal scenarios across the region and its consequences directly inform the flood modelling underpinning planning decisions today.
“A Flood Risk Assessment should be an engineering exercise, not a template report. At FPS Environmental every assessment is bespoke, focused on assessing flood risk thoroughly and supporting viable development.”
Simon Crowther BEng (Hons) FCIWEM C.WEM MIET
Director, FPS Environmental
Canvey Island is the most acute tidal flood risk planning environment in Essex. The island is an entirely defended flood cell, surrounded on all sides by tidal watercourses, with the entire built-up area within Flood Zone 3. The South Essex SFRA includes detailed breach modelling for Canvey Island that forms the mandatory evidence base for FRAs on the island. Development here must engage with this breach modelling directly – the standard flood zone map shows only defended extents and does not capture the residual risk from defence failure. Castle Point Borough Council requires FRAs for all development on Canvey Island regardless of scale.
Chelmsford Borough Council published Level 1 and Level 2 SFRAs in 2024, providing updated flood risk evidence for development sites across the borough including the River Chelmer corridor through the city centre and the Can and Wid tributaries. The River Blackwater affects development at Maldon and Witham. The River Colne creates fluvial risk at Colchester and the upper Colne valley. The River Crouch and River Roach create tidal and fluvial risk across Rochford and the coastal areas of south-east Essex.
Essex County Council acts as LLFA across the county, with Southend-on-Sea and Thurrock as unitary authority LLFAs with their own drainage requirements. Essex has over 12 district and borough councils each with their own SFRA. For planning applications in Essex, the correct SFRA must be identified for the specific district – there is no single county-wide SFRA that covers all sources of flood risk across Essex.
• Development in Flood Zone 2 or 3 anywhere in the tidal Thames corridor from Tilbury to Shoeburyness
• Any development on Canvey Island, where Castle Point Borough Council requires an FRA regardless of scale
• Development in Flood Zone 2 or 3 along the Chelmer, Blackwater, Colne, Crouch, Roach or Stour
• Development requiring engagement with the Thames Estuary 2100 policy framework for the relevant tidal zone
• Development of 1 hectare or more in Flood Zone 1
• Development requiring a surface water drainage strategy under Essex County Council, Southend or Thurrock LLFA guidance
We understand the Thames Estuary 2100 policy framework and the specific breach modelling requirements for defended areas in south Essex including Canvey Island. We know the Chelmsford SFRA 2024, the South Essex Level 1 SFRA and the governance structure of Essex County Council as LLFA alongside the unitary authority LLFAs.
Our FRAs engage with EA Chelmer, Blackwater and Colne model data and address tidal breach risk where it applies to defended Thames Estuary sites. We cover all Essex districts and Southend-on-Sea and Thurrock.
Years combined civil & environmental engineering experience
Years delivering drainage, design and risk advisory
Projects including individual assets valued at £1 billion+
Drainage design and flood risk commissions delivered
Here are some of our latest testimonials from satisfied clients. If you’d like to discuss your requirements further, please don’t hesitate to get in touch.
We are a charity owning a large parcel of land where gathering water is then affecting neighbouring properties. Received expert flood risk and drainage advice from FPS Environmental Ltd. All dealings with them were timely and professional. Site visit arranged where we were able to fully discuss causes and solutions. Great peace of mind obtained from engaging their expertise.
Michael Rowell
Landowner
The report I received was for a Flood Survey which was very thorough and clearly a lot of work had gone into it. The team were always available and conscious of deadlines. I would definitely recommend them if you are looking to get a flood survey completed.
Mike Gray
We spent thousands of pounds on poor quality investigations before reaching out to FPS Environmental. Most surveyors over promised and underdelivered creating tremendous stress for me and my family. FPSE has been absolutely amazing from the very beginning. They treated us with respect and restored our faith in this industry. We are incredibly grateful to them and highly recommend the company to anybody who wants to get a top product and piece of mind.
George Albota
I have used FPS, Simon and his team on several occasions over the last few years to advise on the flood risk and mitigating factors on both houses and prospective businesses. They have deep expertise and contacts across the spectrum of flood management. In particular, I have found their assessment reports invaluable. Whilst they are understandably busy, they are good to deal with and I would have no hesitation recommending them to anyone who is looking for advice in the sector.
Richard Warburton
Business Owner
FPS was really helpful in providing consulting advice in connection with a residential property acquisition. Sebastian from FPS undertook the survey and followed up with a full report and a consultation call to run through everything. The basic desktop data suggested a high flood risk, but this property-specific survey allowed us to take a well-informed position following Sebastian’s advice. Great work – and he and the FPS team were really helpful throughout the process. I’d certainly recommend them.
Richard Brandon
Very impressed with FPS Environmental Ltd and the guidance we have received to date. We had an hour long online consultation with the principal surveyor, and it was extremely helpful and productive. Thank you FPS. Will use the company again and highly recommend.
Helen Sutherland
FPS were able to work to our schedule and fit in an appointment at short notice. There was great communication from the office staff keeping us informed of any changes or requirements before the site visit.
The site survey was very thorough and Simon very knowledgeable, and quite happy to answer all questions. The provided report was extensive with usable information and recommendations. I will use FPS in the future and happily recommend them to all of my clients.
Drew Kirkland-Crawford
Deadwood Services Ltd
Send us your project brief and we will come back with a scope and indicative fee. Where additional input is required, this is provided on a formal instruction basis.
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