38 James Street Westminster W1U 1ET
Erection of mansard roof extension in connection and use of extended property as three residential units (Two units existing).
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Progress
Application details
- Reference
- 06/09676/FULL
- Local authority
- Westminster
- Postcode
- W1U 1ET
- Ward
- MARYLEBONE HIGH STREET
- Application type
- All Other
- Property type
- House
Key dates
- Decided
- 27 Feb 2007
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.
- THIRD FLOOR FLAT 5, 36 NOTTINGHAM PLACE, LONDON, W1U 5NTFlat or maisonette · Leasehold · £827,5003 months ago29 May 2026
- FLAT 9, 30 BLANDFORD STREET, LONDON, W1U 4BYFlat or maisonette · Leasehold · £1,500,0003 months ago19 May 2026
- 61, LUXBOROUGH TOWER LUXBOROUGH STREET, LONDON, W1U 5BNFlat or maisonette · Leasehold · £685,0003 months ago18 May 2026
- 209, BICKENHALL MANSIONS BICKENHALL STREET, LONDON, W1U 6BWFlat or maisonette · Leasehold · £1,300,0004 months ago5 May 2026
- 23 YORK STREET, LONDON, W1U 6PFOther · Leasehold · Not a standard market sale · £2,700,0004 months ago30 Apr 2026
- FLAT 18, ST ANDREWS MANSIONS DORSET STREET, LONDON, W1U 4EQFlat or maisonette · Leasehold · Not a standard market sale · £1,750,0005 months ago8 Apr 2026
- PARKING SPACE 10, BICKENHALL MANSIONS BICKENHALL STREET, LONDON, W1U 6BXOther · Leasehold · Not a standard market sale · £85,0005 months ago30 Mar 2026
- FLAT 5, 43A CHILTERN STREET, LONDON, W1U 6LTFlat or maisonette · Leasehold · £1,175,0005 months ago27 Mar 2026
Homes here go for about £1,175,000 — the median of the last 5 market sales in W1U (the wider postcode district), £685,000 to £1,500,000.
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
- 38, 40 James Street Westminster W1U 1ETPermittedNext door
- 36 James Street Westminster W1U 1ESPermittedNext door
- WestminsterPermittedNext door
- 36 James Street Westminster W1U 1EUPermittedNext door
- WestminsterPermittedNext door
- WestminsterPendingNext door