23 providers offering flood risk assessment in or across the South East, including national firms. A flood risk or drainage consultant, often a chartered engineer.
23 flood risk consultantsthe South East
Who needs oneSites in Flood Zones 2 or 3, sites over 1 hectare in Flood Zone 1, or where the council’s checklist flags surface water risk
Who can do itA flood risk or drainage consultant, often a chartered engineer
WhenBefore you submit, so the design can respond to the findings
Based in Norwich, Norfolk (also London, Glasgow, Chelmsford, Milton Keynes) · Covers UK-wide (England and Scotland, from five offices)Accreditation stated by provider: Constructionline Silver, CIBSE Low Carbon Consultant, SMAS Worksafe (no CIWEM/ICE confirmed on this page)
Based in Nottingham, Nottinghamshire (also Birmingham, Leeds, London, Manchester) · Covers UK-wide (national coverage from five English offices)Accreditation stated by provider: Not confirmed on site
Based in Swindon, Wiltshire (also Bristol, London, Birmingham) · Covers UK-wide (nationwide consultancy from four offices)Accreditation stated by provider: Not confirmed on site
Based in Shrewsbury, Shropshire · Covers Not explicitly stated; serves planners, architects and developers nationallyAccreditation stated by provider: Not confirmed on site
Based in Edinburgh, Scotland · Covers Scotland-focused with wider national reachAccreditation stated by provider: ISO 9001, ISO 14001, ISO 45001 (no CIWEM membership confirmed on site)
Based in Ruthin, Denbighshire, North Wales (also Caernarfon and Mold) · Covers North Wales and North West England, with UK-wide project deliveryAccreditation stated by provider: ICE Approved, WIRS accredited, ISOQAR, UVDB (BS8555/CIWEM not confirmed on site)
If your site is in or near a flood zone, or is a larger development anywhere, your council will usually ask for a flood risk assessment before granting planning permission, alongside a drainage strategy showing how surface water will be managed.
Getting signed off in England
In England, your council’s building control team or a registered building control approver checks the work. They issue a completion or final certificate once they have the reports they need, such as the as-built SAP, EPC, air test and any sound or ventilation test results.