1 Golden Square Westminster W1F 9DJ
Erection of a single-storey roof extension, installation of new plant machinery, creation of amenity terraces and associated alterations to the front and rear facades of 1 Golden Square.
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Progress
Application details
- Reference
- 26/06192/FULL
- Local authority
- Westminster
- Postcode
- W1F 9DJ
- Ward
- WEW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 10 Sept 2026
- Validated
- 10 Sept 2026
- Target decision
- 5 Nov 2026
Estimated project value
£37k–£100k
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: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.
- GROUND AND LOWER GROUND FLOOR PREMISES, 68 - 70 WARDOUR STREET, LONDON, W1F 0TBOther · Leasehold · Not a standard market sale · £240,0002 months ago13 Jul 2026
- 76 BREWER STREET, LONDON, W1F 9TXOther · Not a standard market sale · £3,500,0002 months ago10 Jul 2026
- FLAT 66, 1 - 6 DUFOURS PLACE, LONDON, W1F 7SHFlat or maisonette · Leasehold · £565,0002 months ago26 Jun 2026
- 7 POLAND STREET, LONDON, W1F 8PUTerraced · Not a standard market sale · £2,800,0004 months ago19 May 2026
- FLAT 12, CITY OF WESTMINSTER DWELLINGS, 20 MARSHALL STREET, LONDON, W1F 7ERFlat or maisonette · Leasehold · Not a standard market sale · £483,0005 months ago31 Mar 2026
- LOWER GROUND & GROUND FLOOR RETAIL UNITS, 19 - 25 BROADWICK STREET, LONDON, W1F 0DFOther · Leasehold · Not a standard market sale · £70,0007 months ago12 Feb 2026
- FLAT 8, 45 BROADWICK STREET, LONDON, W1F 9QWFlat or maisonette · Leasehold · Not a standard market sale · £540,0008 months ago19 Jan 2026
- FLAT 15, CITY OF WESTMINSTER DWELLINGS, 20 MARSHALL STREET, LONDON, W1F 7ERFlat or maisonette · Leasehold · Not a standard market sale · £395,0009 months ago10 Dec 2025
Contains HM Land Registry data © Crown copyright and database right 2026. 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
- 2, 3 Golden Square Westminster W1F 9HRPendingNext door
- 4 Golden Square Westminster W1F 9HTPermittedAdjoining
- 4 Golden Square Westminster W1F 9HTPermittedAdjoining
- 40 Beak Street Westminster W1F 9RQPermittedAdjoining
- 40 Beak Street Westminster W1F 9RQPermittedAdjoining
- 40 Beak Street Westminster W1F 9RQPermittedAdjoining