51 Upper Montagu Street Westminster W1H 1FQ
Internal alterations including lowering of the floor level to the lower ground floor; Installation of replacement modern windows with slimline double-glazed units; external alterations to front and rear elevations to reinstate window baskets; installation of an air source heat pump and replacement of existing railings at main roof level; erection of the rear extension at lower ground floor level to include a green roof; and other associated works.
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Progress
Application details
- Reference
- 25/03875/LBC
- Local authority
- Westminster
- Postcode
- W1H 1FQ
- Ward
- MBW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 9 Jun 2025
- Validated
- 9 Jun 2025
- Target decision
- 4 Aug 2025
- Decided
- 28 Oct 2025
Estimated project value
£7k–£12k
Based on the 3.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 3m²
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.
- FLAT 2, 41 UPPER MONTAGU STREET, LONDON, W1H 1FQFlat or maisonette · Leasehold · £1,825,0002 years ago1 Mar 2024
- FLAT 1, 41 UPPER MONTAGU STREET, LONDON, W1H 1FQFlat or maisonette · Leasehold · £1,125,0002 years ago25 Jan 2024
- 51 UPPER MONTAGU STREET, LONDON, W1H 1FQTerraced · £3,000,0003 years ago5 Sept 2023
- 43 UPPER MONTAGU STREET, LONDON, W1H 1FQTerraced · £3,600,0005 years ago13 Apr 2021
- 43 UPPER MONTAGU STREET, LONDON, W1H 1FQTerraced · £2,600,0007 years ago5 Jun 2019
- 51 UPPER MONTAGU STREET, LONDON, W1H 1FQTerraced · £3,250,00010 years ago19 Feb 2016
- 41 UPPER MONTAGU STREET, LONDON, W1H 1FQTerraced · Not a standard market sale · £3,210,00011 years ago31 Oct 2014
- 43 UPPER MONTAGU STREET, LONDON, W1H 1FQTerraced · £650,00027 years ago15 Jan 1999
Homes here go for about £2,600,000 — the median of the last 7 market sales in W1H 1FQ, £650,000 to £3,600,000.
Contains HM Land Registry data © Crown copyright and database right 2024. 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
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