Listed Building at Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP, received 12 Jan 2026 — refused on 2 Apr 2026 (delegated, Nikki Mitchell).
Record from the Westminster planning register as captured; documents link to the council's own files. Nearby applications are context, not part of this application.
Application
What is it?
Replacement of external door at Lower Ground Floor level and installation of external security gate in front.
Documents open on the Westminster portal (the portal needs its documents tab opened first — the link handles that). View the application page ↗
Decision
What happened?
Refused on 2 Apr 2026, delegated decision by Nikki Mitchell — 11 weeks from submission (3 over the 8-week target).
Timeline
Date
Event
12 Jan 2026
Application received
9 Mar 2026
Statutory target date
2 Apr 2026
Delegated decision: Refused · Nikki Mitchell
12 Jan 2026
Application received
9 Mar 2026
Statutory target date
2 Apr 2026
Delegated decision: Refused · Nikki Mitchell
Why it was refused
Reason
As stated on the decision notice
1
Because of its appearance and detailed design the security gate would harm the appearance of this
grade II listed building. It would also fail to maintain or improve (preserve or enhance) the character
and appearance of the Belgravia Conservation Area. This would not meet Policies 42, 44 and 45 of the
City Plan 2019 - 2040 (January 2026). (X17CD)
1
Because of its appearance and detailed design the security gate would harm the appearance of this
grade II listed building. It would also fail to maintain or improve (preserve or enhance) the character
and appearance of the Belgravia Conservation Area. This would not meet Policies 42, 44 and 45 of the
City Plan 2019 - 2040 (January 2026). (X17CD)
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.