26/00782/FULL.
23 Grafton Street London W1S 4EY
Full / Other Planning at 23 Grafton Street London W1S 4EY, received 10 Feb 2026 — approved on 19 May 2026 (delegated, Rattan Sehra).
What is it?
Variation of Conditions 7 and 8 of planning permission dated 17 June 2025 (RN: 25/01604/FULL) for 'Phased development including replacement of rear basement roof slab and creation of a rear extension at ground floor. Removal of rear ground floor toilet block and external fire escape stairs. Demolition of existing, altered mansard roof and construction of a new mansard roof with dormer windows and concealed plant enclosure. Extension of existing lift to serve fourth floor. Replacement of third floor rear windows with double glazed sash windows. Minor internal reconfigurations. Continued use of ground floor as retail (Use Class E(a)) and basement, first, second, third and fourth as office (Use
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What was filed?
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Documents open on the Westminster portal (the portal needs its documents tab opened first — the link handles that). View the application page ↗
What happened?
Approved on 19 May 2026, delegated decision by Rattan Sehra — 14 weeks from submission (6 over the 8-week target).
Timeline
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.