12 Edithna Street London SW9 9JP Data via plota.co.uk
Proposal
Erection of a mansard roof extension to form a new second floor to enlarge the existing first floor flat. Data via plota.co.uk
Application progress
Approved on 12 Jun 2026 · Delegated Decision · Last checked 6 Jul 2026
Documents 24
Decision & officer reports 1
Plans & drawings 19
Application forms 2
Site constraints 2
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Every application in Lambeth - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
How this decision compares
Decided in 53 days from validation, about the council's usual 56 days. Approved, as 82% of extensions here are.
Plota live figures for extensions decided by Lambeth in the last twelve months, from validation. Lambeth decision record →
Consultation & key dates
- Comments by
- 22 May 2026
- Env. assessment
- No
Historical activity at this location
26 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Lambeth ranks #164 out of 296 councils for householder decision speed. 47% of applications have the time limit extended, above the 41% national average. Lambeth is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
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12 Edithna Street London SW9 9JP
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