3 Wilton Street Westminster SW1X 7AF
Erection of a mansard roof extension.
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Progress
Application details
- Reference
- 25/08750/FULL
- Local authority
- Westminster
- Postcode
- SW1X 7AF
- Ward
- KBW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 1 Dec 2025
- Validated
- 1 Dec 2025
- Comments close
- 20 Mar 2026
- Target decision
- 26 Jan 2026
- Decided
- 17 Apr 2026
Estimated project value
£57k–£120k
Based on the 35.0m² of floor area stated in the application, at inner London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 35m² · 1 additional bedrooms
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.
- 12 WILTON STREET, LONDON, SW1X 7AFTerraced · £5,200,0004 years ago29 Jul 2022
- 3 WILTON STREET, LONDON, SW1X 7AFTerraced · £900,0004 years ago27 Jun 2022
- 4 WILTON STREET, LONDON, SW1X 7AFTerraced · £5,700,0007 years ago23 Nov 2018
- 15 WILTON STREET, LONDON, SW1X 7AFTerraced · £9,200,00011 years ago16 Apr 2015
- 10 WILTON STREET, LONDON, SW1X 7AFTerraced · £1,041,80012 years ago14 May 2014
- 3 WILTON STREET, LONDON, SW1X 7AFTerraced · Leasehold · Not a standard market sale · £5,300,00013 years ago1 Aug 2013
- 2 WILTON STREET, LONDON, SW1X 7AFTerraced · £3,140,00016 years ago29 Mar 2010
- 7 WILTON STREET, LONDON, SW1X 7AFTerraced · £2,575,00019 years ago2 Nov 2006
Homes here go for about £3,140,000 — the median of the last 7 market sales in SW1X 7AF, £900,000 to £9,200,000.
Contains HM Land Registry data © Crown copyright and database right 2022. 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.
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