17 Alexander Street Westminster W2 5NT
Erection of rear extension at lower ground floor with terrace above, use of flat roof at second floor level as a terrace, alterations to windows and doors in association with works to the rear and to the lower ground front lightwell, roof alterations in association with photovoltaic panels and plant equipment; modifications to the front lightwell including replacement of the metal railings at ground floor and inclusion of a gate and landscaping works to the rear garden.
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Progress
Application details
- Reference
- 25/08229/FULL
- Local authority
- Westminster
- Postcode
- W2 5NT
- Ward
- BWW_22
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 11 Nov 2025
- Validated
- 11 Nov 2025
- Comments close
- 17 Dec 2025
- Target decision
- 6 Jan 2026
- Decided
- 5 Jun 2026
Estimated project value
£21k–£35k
Based on the 8.5m² 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: 8.54m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 5 recent sales are listed below.
- 15 ALEXANDER STREET, LONDON, W2 5NTTerraced · £4,960,0007 months ago19 Jan 2026
- FLAT 4, 26 ALEXANDER STREET, LONDON, W2 5NTFlat or maisonette · Leasehold · £2,070,00016 months ago15 Apr 2025
- 18 ALEXANDER STREET, LONDON, W2 5NTTerraced · £5,300,00017 months ago24 Mar 2025
- 23A ALEXANDER STREET, LONDON, W2 5NTFlat or maisonette · Leasehold · £970,00021 months ago10 Nov 2024
- FLAT 1, 7 ALEXANDER STREET, LONDON, W2 5NTFlat or maisonette · Leasehold · £2,045,68522 months ago31 Oct 2024
- FLAT 4, 26 ALEXANDER STREET, LONDON, W2 5NTFlat or maisonette · Leasehold · £2,240,0002 years ago30 Oct 2023
- 17 ALEXANDER STREET, LONDON, W2 5NTTerraced · £5,750,0002 years ago4 Oct 2023
- LOWER GROUND FLOOR FLAT, 26 ALEXANDER STREET, LONDON, W2 5NTFlat or maisonette · Leasehold · £800,0003 years ago4 Sept 2023
Homes here go for about £2,155,000 — the median of the last 8 market sales in W2 5NT, £800,000 to £5,750,000.
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
- 17 Alexander Street Westminster W2 5NTPendingNext door
- 17 Alexander Street Westminster W2 5NTPendingNext door
- 17 Alexander Street Westminster W2 5NTPermittedNext door
- 17 Alexander Street Westminster W2 5NTPendingNext door
- 18 Alexander Street Westminster W2 5NTPermittedNext door
- 18 Alexander Street Westminster W2 5NTPermittedNext door