1 Lower John Street Westminster W1F 9DT
Erection of new mansard roof extension to building in connection with change of use of upper levels from restaurant (Use Class E(b)) to 2x1-bed flats and 1x2-bed maisonette (Use Class C3). Alterations to facade including replacement of single glazed windows with timber-framed slimline double-glazed windows at 1 Lower John Street. Increase height of chimney stack to boundary shared with 1 Lower John Street at 2 Lower John Street. (Linked with 24/08967/LBC)
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Progress
Application details
- Reference
- 24/08966/FULL
- Local authority
- Westminster
- Postcode
- W1F 9DT
- Ward
- WEW_22
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 20 Dec 2024
- Validated
- 20 Dec 2024
- Comments close
- 3 Mar 2025
- Target decision
- 14 Feb 2025
- Decided
- 14 May 2025
Estimated project value
£360k–£745k
Based on the 221m² 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: 221m²
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.
- 34A BRIDLE LANE, LONDON, W1F 9BYTerraced · £500,0003 months ago24 Jul 2026
- GROUND AND LOWER GROUND FLOOR PREMISES, 68 - 70 WARDOUR STREET, LONDON, W1F 0TBOther · Leasehold · Not a standard market sale · £240,0003 months ago13 Jul 2026
- 76 BREWER STREET, LONDON, W1F 9TXOther · Not a standard market sale · £3,500,0003 months ago10 Jul 2026
- FLAT 66, 1 - 6 DUFOURS PLACE, LONDON, W1F 7SHFlat or maisonette · Leasehold · £565,0004 months ago26 Jun 2026
- 7 POLAND STREET, LONDON, W1F 8PUTerraced · Not a standard market sale · £2,800,0005 months ago19 May 2026
- FLAT 12, CITY OF WESTMINSTER DWELLINGS, 20 MARSHALL STREET, LONDON, W1F 7ERFlat or maisonette · Leasehold · Not a standard market sale · £483,0006 months ago31 Mar 2026
- LOWER GROUND & GROUND FLOOR RETAIL UNITS, 19 - 25 BROADWICK STREET, LONDON, W1F 0DFOther · Leasehold · Not a standard market sale · £70,0008 months ago12 Feb 2026
- FLAT 8, 45 BROADWICK STREET, LONDON, W1F 9QWFlat or maisonette · Leasehold · Not a standard market sale · £540,0009 months ago19 Jan 2026
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
- 1 Lower John Street Westminster W1F 9DTPermittedNext door
- 1 Lower John Street Westminster W1F 9DTPermittedNext door
- Lower John Street City Of Westminster W1F 9DTPermittedNext door
- Lower John Street City Of Westminster W1F 9DTRefusedNext door
- 1 Lower John Street Westminster W1F 9DTPendingNext door
- 1 Lower John Street Westminster W1F 9DTRefusedNext door