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.
- 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
- FLAT 15, CITY OF WESTMINSTER DWELLINGS, 20 MARSHALL STREET, LONDON, W1F 7ERFlat or maisonette · Leasehold · Not a standard market sale · £395,0008 months ago10 Dec 2025
- 40 - 42 LEXINGTON STREET, LONDON, W1F 0LNOther · Leasehold · Not a standard market sale · £250,0009 months ago14 Nov 2025
- FLAT 5, 97 WARDOUR STREET, LONDON, W1F 0UFFlat or maisonette · Leasehold · Not a standard market sale · £590,00010 months ago31 Oct 2025
- FLAT 7.6, STIRLING COURT MARSHALL STREET, LONDON, W1F 9BDFlat or maisonette · Leasehold · Not a standard market sale · £735,00011 months ago12 Sept 2025
- 7A LIVONIA STREET, LONDON, W1F 8AEOther · Not a standard market sale · £41,000,00011 months ago10 Sept 2025
- FLAT 6, SANDRINGHAM COURT DUFOURS PLACE, LONDON, W1F 7SLFlat or maisonette · Leasehold · £850,00012 months ago29 Aug 2025
- FLAT 1-3, 74 WARDOUR STREET, LONDON, W1F 0TEOther · Leasehold · Not a standard market sale · £1,795,00012 months ago22 Aug 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
- 1 Lower John Street Westminster W1F 9DTPermittedNext door
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