25/04742/FULL.
135 Portnall Road London W9 3BN
Full / Other Planning at 135 Portnall Road London W9 3BN, received 10 Jul 2025 — refused on 2 Oct 2025 (delegated, Avani Raven).
What is it?
Construction of a full-width rear dormer extension to provide additional habitable accommodation at roof level, including extension of party walls in matching materials, associated alterations and installation of sash windows.
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What was filed?
Documents open on the Westminster portal (the portal needs its documents tab opened first — the link handles that). View the application page ↗
What happened?
Refused on 2 Oct 2025, delegated decision by Avani Raven — 12 weeks from submission (4 over the 8-week target).
Timeline
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Public response
Who is involved?
What affects it?
Context around the site — not part of this application. Designations over the site: use the map's designations filter (conservation areas, listed buildings, Article 4, flood risk …). Decisions within 250 metres of the site are listed below — context, not this application.
Other applications within 250 metres (context — nearby, not this application)
No other geocoded decision is recorded within 250 metres.