No change in impermeable area - brownfield sites
BREEAM·clause CN3.2·p.408
The requirement
BREEAM International New Construction Technical Manual clause CN3.2 — words not shown. Read it at the source. The publisher reserves the right to its wording and sells access to it. The clause is held and cited here, and its words are read at the source.
The clause is held and verified. Only its words are withheld.
What the product must meet
- Exemptions
- Volume calculations will not need to be provided. Instead, drawings clearly showing the impermeable areas of the site draining to the watercourse should be provided for the pre- and post-development scenarios.
How it is proven
- Who checks it
- Independent body verifies — a certifier, auditor or verifier with no stake
How Klar Cite classifies it
Klar Cite’s reading of the clause, not the scheme’s own claim.
- What it asks
- Meet — a limit, condition or outcome the product must satisfy
- Standing
- Required — must be met for the credential
- Impact area
- Ecosystem Health — the CMF area the clause addresses
Cite this clause
BREEAM · BREEAM International New Construction Technical Manual · version v7.1 · clause CN3.2 · page 408 · build 2026-10-05-0439 · https://klarcite.com/r/0198bf747ed4a130
Record details
Page 408. Read in build 2026-10-05-0439, harvested 2026-10-05.
uid 0198bf747ed4a130 · document e3e19e8b697bf44b · fidelity close quote · published 2024