11A Belgrave Square Westminster SW1X 8PH
Internal and external works including demolition of partition walls, fixtures and fittings, and lightwell excavation at lower ground level (Confirmation of lawful implementation of the planning permission dated 21st September 2022 (RN: 22/01791/FULL) for excavation works to lower ground floor and basement to achieve swimming pool depth and new storey; relocation of existing mechanical ventilation plant within the existing roof void with two grilles in roof; new ventilation shaft and metal grating in the front lightwell.
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Progress
Application details
- Reference
- 25/09302/CLEUD
- Local authority
- Westminster
- Postcode
- SW1X 8PH
- Ward
- KBW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 23 Dec 2025
- Validated
- 23 Dec 2025
- Target decision
- 17 Feb 2026
- Decided
- 11 Mar 2026
Estimated project value
£135k–£340k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: trade estimate.
Recently sold nearby
Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.
- 11A BELGRAVE SQUARE, LONDON, SW1X 8PHOther · Not a standard market sale · £5,0005 years ago23 Mar 2021
- 9 BELGRAVE SQUARE, LONDON, SW1X 8PHOther · Not a standard market sale · £42,000,0006 years ago14 Aug 2020
- 10 BELGRAVE SQUARE, LONDON, SW1X 8PHOther · Not a standard market sale · £48,000,0007 years ago30 Nov 2018
- LOWER GROUND FLOOR FLAT, 4 BELGRAVE SQUARE, LONDON, SW1X 8PHFlat or maisonette · Leasehold · £2,500,00011 years ago19 Feb 2015
- MAISONETTE, 4 BELGRAVE SQUARE, LONDON, SW1X 8PHFlat or maisonette · Leasehold · New build · £2,064,20018 years ago3 Jul 2008
- FOURTH FLOOR FLAT, 4 BELGRAVE SQUARE, LONDON, SW1X 8PHFlat or maisonette · Leasehold · £1,615,00019 years ago7 Jun 2007
- SECOND AND THIRD FLOOR FLAT, 4 BELGRAVE SQUARE, LONDON, SW1X 8PHFlat or maisonette · Leasehold · £1,958,75023 years ago21 May 2003
- LOWER GROUND FLOOR FLAT, 4 BELGRAVE SQUARE, LONDON, SW1X 8PHFlat or maisonette · Leasehold · £40,00031 years ago29 Mar 1995
Homes here go for about £1,958,750 — the median of the last 5 market sales in SW1X 8PH, £40,000 to £2,500,000.
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
Nearby applications
- 11A Belgrave Square Westminster SW1X 8PHPendingNext door
- 11A Belgrave Square Westminster SW1X 8PHPendingNext door
- 11A Belgrave Square Westminster SW1X 8PHPermittedNext door
- 11A Belgrave Square Westminster SW1X 8PHPermittedNext door
- 11A Belgrave Square Westminster SW1X 8PHPermittedNext door
- 11 Belgrave Square Westminster SW1X 8PPPendingNext door