Building standard 3.3 - flooding and groundwater guidance review: research
Research to inform the review of guidance which supports Standard 3.3, including identifying current good practice on flooding and groundwater and suggesting improvements and adoption of a good practice guide for local authorities.
Appendix F Draft Suggested Good Practice Template Circulated to Local Authorities
A good practice approach
Table 4-1 provides a suggested checklist for good practice on checking Building Standards compliance on flooding and groundwater which could be used by Building Standards officers. It suggests checking on flood risk and communicating with the flood officer, as appropriate, early on in the building warrant process. With respect to PFR, the CIRIA C790 Code of Practice is recognised including Post Installation Audit of PFR measures. The alignment of CIRIA C790 with Building Standards processes is summarised in Table 4-2. As noted in the preceding section, PFR training may be beneficial to Building Standards staff for checking compliance. Alternatively, the PFR compliance check could be outsourced to appropriately qualified specialists.
Stage |
Item |
Answer |
|---|---|---|
Building warrant |
Is flooding and groundwater an issue at this site? (e.g. local knowledge and/or SEPA Flood Map check) |
|
Building warrant |
Has this issue been addressed at planning stage? If not, consultation with the flood officer is recommended. |
|
Building warrant |
Are all relevant documents available? E.g.:
And been signed off by the relevant officer (e.g. flood officer; structural engineer)? |
|
Building warrant |
If flood mitigation measures have been used do they meet the BSI standards: BS 8000-0:2014, BS 8533:2017 and BS 85500:2015 ? |
|
Inspection |
Does the location of the development and finished floor level comply with the approved plans and any relevant planning conditions? |
|
Inspection |
If Property Flood Resilience (PFR) has been used, is there evidence of it following the Code of Practice as defined in CIRIA C790? (See accompanying table) |
|
Completion certification |
Is evidence of the following available? All flood risk:
For PFR:
|
CIRIA C790 Standard |
Building Standards process |
Relevant Reference |
|---|---|---|
Stage 1 Hazard Assessment |
Building Warrant: Flooding type(s), depth, speed, duration and frequency. Property survey (existing) and design review (new build); specified materials/building elements, and proposed PFR solution. |
C790B: Chapter 12 |
Stage 2 Property Survey (existing buildings) |
C790B: Chapter 13 Draft BS85500 Clause 4.4 |
|
Stage 3 Options development and design |
C790B: Chapters 14, 23, 25 |
|
Stage 4 Construction |
Completion Certificate: On-site checks/inspections to verify specified PFR solutions have been achieved (CCNP*). Evidence of in-situ and wet testing. Receive post installation audit (PiA). Receive Homeowner Flood Plan (or O&M manuals). |
C790B: Chapter 15 |
Stage 5 Commissioning and handover |
C790B: Chapter 16 |
|
Stage 6 Operation and maintenance |
C790B: Chapters 17 & 24 |
*Construction Compliance and Notification Plan (CCNP)
Contact
Email: buildingstandards@gov.scot
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