Property Flood Resilience: Essential Paperwork and Records to Keep

Property Flood Resilience (PFR) measures encompass a range of physical adaptations designed to help homes withstand flooding. These can include resistance measures to keep water out, such as flood doors, barrier slots, and self-closing airbricks, as well as recoverable adaptations inside the home like raised electrics and sump pump systems. Because flood risk directly influences property insurability and structural safety, retaining full documentation for every installed measure is crucial.

Pre-Installation Surveys and Flood Risk Assessments

Before any physical work begins, a professional property survey is typically carried out to assess the building's construction type, potential ingress routes, and the anticipated flood mechanism (surface water, river, or groundwater). Good practice in the UK follows the CIRIA C790 Code of Practice for property flood resilience, which sets out standards for survey methodologies and system design.

You should keep the full written survey report and design proposal. This documentation specifies the 'design water depth'—the maximum flood level the measures are calculated to defend against. It also records whether the chosen approach is dry floodproofing (keeping water out) or wet floodproofing (accepting water ingress while minimising internal damage and facilitating fast drying).

Product Certifications and Standards Compliance

Flood protection products must be manufactured to withstand specific hydrostatic and hydrodynamic pressures. When installing barrier products, insurers and future buyers often look for evidence that components meet recognised performance benchmarks, such as the BSI Kitemark for flood protection products (tested against BS 851188).

• Product data sheets and manufacturer declaration of performance certificates
• Evidence of testing to relevant British Standards (such as BS 851188 for flood doors, barriers, and airbricks)
• Manufacturer warranties for mechanical parts, seals, and protective coatings
• Clear operation manuals detailing deployment procedures for manual barriers or valves

Building Regulations and Statutory Approvals

While installing demountable barriers rarely requires formal statutory consent, other PFR measures trigger mandatory building standards. If you install an internal or external sump and pump system, the electrical supply must comply with Part P (Electrical Safety) of the Building Regulations, requiring an Electrical Installation Certificate (EIC) or a Minor Electrical Installation Works Certificate from a qualified electrician.

Replacing standard external doors with purpose-built flood doors must also satisfy Building Regulations regarding means of escape (Part B), thermal performance (Part L), and accessibility (Part M). If your home is a listed building or situated in a conservation area, you may also need listed building consent or specific planning permission for visible external changes such as barrier tracks, raised thresholds, or replacement airbricks.

Commissioning Records and Maintenance Schedules

Mechanical and active resilience measures require ongoing maintenance to remain dependable. An automated sump pump system, non-return valve, or alarm unit should come with a commissioning sheet signed by the installer, confirming proper testing under simulated load.

Keep a rolling record of routine servicing, seal replacements, battery backup health checks, and annual pump cleanouts. Using an independent platform like Project Passport lets homeowners log these regular checks alongside the original installation paperwork, ensuring maintenance histories remain clear and chronological.

Supporting Insurance and Future Property Conveyancing

When obtaining property insurance or renewing a policy in an area with known flood history, insurers may ask for detailed evidence of physical defences before offering terms or adjusting excesses. Having instant access to test certificates, installer sign-offs, and service logs avoids delays in securing cover.

Similarly, during a future sale, the standard Law Society Property Information Form (TA6) asks specific questions about whether the property has flooded and what preventative measures have been installed. Providing an organised record pack through Project Passport gives buyers, surveyors, and conveyancers an unambiguous summary of the defences in place and how they have been looked after.