100-year peak rate event - excess volume of run-off

BREEAM·clause M4·p.406

The requirement

BREEAM International New Construction Technical Manual clause M4 — 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.

Read it at the source

What the product must meet

Exemptions
Overland flood flows and temporary storage of flood water on the surface must not be so frequent as to unreasonably inconvenience residents and other users.

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 M4 · page 406 · build 2026-10-05-0439 · https://klarcite.com/r/ee904cfe11580b05

Source document

Record details

Page 406. Read in build 2026-10-05-0439, harvested 2026-10-05.

uid ee904cfe11580b05 · document e3e19e8b697bf44b · fidelity verbatim · published 2024