4 Duck Lane Westminster W1F 0HY
Erection of single storey roof extension to 4 Duck Lane to enlarge existing flat (Class C3) and associated external alterations including new front door, alterations to windows along front and rear elevations at first and second floor including new door at rear and installation of plant with associated screening at main roof level.
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Progress
Application details
- Reference
- 20/02405/FULL
- Local authority
- Westminster
- Postcode
- W1F 0HY
- Ward
- WEA_02
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 8 Apr 2020
- Validated
- 8 Apr 2020
- Comments close
- 12 May 2020
- Target decision
- 3 Jun 2020
- Decided
- 5 Aug 2020
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.
- GROUND AND LOWER GROUND FLOOR PREMISES, 68 - 70 WARDOUR STREET, LONDON, W1F 0TBOther · Leasehold · Not a standard market sale · £240,0002 months ago13 Jul 2026
- 76 BREWER STREET, LONDON, W1F 9TXOther · Not a standard market sale · £3,500,0002 months ago10 Jul 2026
- FLAT 66, 1 - 6 DUFOURS PLACE, LONDON, W1F 7SHFlat or maisonette · Leasehold · £565,0002 months ago26 Jun 2026
- 7 POLAND STREET, LONDON, W1F 8PUTerraced · Not a standard market sale · £2,800,0003 months ago19 May 2026
- FLAT 12, CITY OF WESTMINSTER DWELLINGS, 20 MARSHALL STREET, LONDON, W1F 7ERFlat or maisonette · Leasehold · Not a standard market sale · £483,0005 months ago31 Mar 2026
- LOWER GROUND & GROUND FLOOR RETAIL UNITS, 19 - 25 BROADWICK STREET, LONDON, W1F 0DFOther · Leasehold · Not a standard market sale · £70,0007 months ago12 Feb 2026
- FLAT 8, 45 BROADWICK STREET, LONDON, W1F 9QWFlat or maisonette · Leasehold · Not a standard market sale · £540,0007 months ago19 Jan 2026
- FLAT 15, CITY OF WESTMINSTER DWELLINGS, 20 MARSHALL STREET, LONDON, W1F 7ERFlat or maisonette · Leasehold · Not a standard market sale · £395,0009 months ago10 Dec 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
- 3 Duck Lane Westminster W1F 0HUPermittedNext door
- 4A Duck Lane Westminster W1F 0HYPermittedNext door
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- 2-3 Duck Lane Westminster W1F 0HUPermittedNext door
- 2-3 Duck Lane Westminster W1F 0HURefusedNext door
- 18 Berwick Street Westminster W1F 0PUPermittedNext door