Flood risk assessment
[edit] Introduction
A flood risk assessment is required for most developments within one of the flood zones.
This includes developments that are:
- In flood zone 2 or 3 including minor development and change of use.
- More than 1 hectare (ha) in flood zone 1.
- Less than 1 ha in flood zone 1, including a change of use in development type to a more vulnerable class (for example from commercial to residential), where they could be affected by sources of flooding other than rivers and the sea (for example surface water drains, reservoirs).
- In an area within flood zone 1 which has critical drainage problems as notified by the Environment Agency.
It is not necessary to carry out a flood risk assessment for a development that is less than 1 ha in flood zone 1 unless it could be affected by sources of flooding other than rivers and the sea, for example surface water drains.
You can find out more at: https://www.gov.uk/guidance/flood-risk-assessment-for-planning-applications
[edit] Home Quality Mark
For the purposes of the Home Quality Mark, a Flood Risk Assessment (FRA) or Flood Consequence Assessment (FCA) is defined as:
A study to assess the risk of a site flooding, and to assess the impact that any changes or development on the site will have on flood risk to the site and elsewhere. A FRA should be prepared according to relevant planning policy and technical guidance documents. The FRA must account for future climate change and detail any necessary adaptation measures where or if required. Where more than five years have passed since the FRA was carried out, evidence would be required to demonstrate that the basis of the FRA has not changed in that time. |
Ref Home Quality Mark One, Technical Manual SD239, England, Scotland & Wales, published by BRE in 2018.
[edit] Related articles on Designing Buildings
- BREEAM Flood risk management.
- Building Research Establishment.
- Changing attitudes to property flood resilience in the UK
- Design flood event.
- Design flood level.
- Flood.
- Flood Risk Framework.
- Home Quality Mark.
- Flood and Water Management Act.
- Flood plain
- Flood risk
- Flood risk management plan
- Flood zone
- Flood defences
- Planning for floods.
- Property flood resilience
Featured articles and news
Noise in the built environment
BSRIA guide TG 20/2021.
17,000 people suffer conditions as a result of exposure to excessive noise at work.
Turning down the noise: Auditory health
A pervasive risk with far-reaching consequences.
UK Construction Week, London is here !
Debuting major international pavilions and much more.
Getting the most out of heat pumps and heating
How heat pumps work and how they work best.
Plumbing and heating for successful retrofit and renovation
Low temperature underfloor systems and heat pumps.
Cost-of-living crisis and home improvement plans
Starting on the right footing and top tips for projects.
Delays on construction projects
Types, mitigation and the acceleration of works.
From Chaucer to Fawlty Towers.
Electrotechnical excellence, now open for entries.
Net zero electricity grids BSRIA guide NZG 5/2024
Outlining the changes needed to transition to net zero.
CIOB Global Student Challenge 2024
Universitas Indonesia wins for second year running.
New project and cultural district described in detail.
ECA 2024 Apprentice of the Year Award
Entries open for submission until May 31.
UK gov apprenticeship funding from April 2024
Brief summary the policy paper updated in March.