54 St Martin's Lane Westminster WC2N 4EA
Erection of mansard roof extension with rooflights over; extension at rear first floor level, creation of terraces at rear first and front fourth floor levels; installation of replacement full height duct to rear, alterations to rear fenestration and installation of Juliet balconies, all in connection with the use of the first, second, third and new fourth floor as 3 self contained residential units (2 x 1 bed and 1 x 2 bed).
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Progress
Application details
- Reference
- 10/09190/FULL
- Local authority
- Westminster
- Postcode
- WC2N 4EA
- Ward
- ST. JAMES'S
- Application type
- All Other
- Property type
- House
Key dates
- Decided
- 17 Feb 2011
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
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 51 ST MARTINS LANE, LONDON, WC2N 4EAOther · Leasehold · Not a standard market sale · £1,140,00015 months ago30 May 2025
- FLAT, 53 ST MARTINS LANE, LONDON, WC2N 4EAOther · Not a standard market sale · £2,800,00015 months ago30 May 2025
- 51 ST MARTINS LANE, LONDON, WC2N 4EAOther · Leasehold · Not a standard market sale · £5,6735 years ago25 Aug 2021
- FLAT 1-10, GOODWINS HOUSE, 55 - 56 ST MARTINS LANE, LONDON, WC2N 4EAOther · Not a standard market sale · £96,450,0005 years ago22 Mar 2021
- 58 ST MARTINS LANE, LONDON, WC2N 4EAOther · Not a standard market sale · £96,450,0005 years ago22 Mar 2021
- 57 ST MARTINS LANE, LONDON, WC2N 4EAOther · Not a standard market sale · £96,450,0005 years ago22 Mar 2021
- 54 ST MARTINS LANE, LONDON, WC2N 4EAFlat or maisonette · Leasehold · Not a standard market sale · £150,00011 years ago19 Mar 2015
- LAGUNA RESTAURANT, 50 ST MARTINS LANE, LONDON, WC2N 4EASemi-detached · £7,250,00028 years ago17 Sept 1998
Contains HM Land Registry data © Crown copyright and database right 2025. 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
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