126, 134 Baker Street Westminster W1U 6SH
Amendments to planning permission dated 10th November 2015 (RN:15/07396/FULL) for Erection of three storey extension at the rear of the building at second, third and fourth floor level and use of enlarged second to fourth floors as 11 flats (Class C3). Installation of plant within existing roof top plant room and plant within existing stairwell at roof level. Installation of photovoltaic panels and living roof at roof level and new entrance doors at ground floor level. Namely, changes to the extension at the rear of the building to alter the external appearance from a brick finish to a render finish, removal of two windows to side elevation to the extension to the rear of the building, replacement of existing retained windows to rear elevation (in lieu of installation of secondary internal glazing) and removal of the cycle store at second floor level.
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Progress
Application details
- Reference
- 26/04634/NMA
- Local authority
- Westminster
- Postcode
- W1U 6SH
- Ward
- MBW_22
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 10 Jul 2026
- Validated
- 10 Jul 2026
- Target decision
- 7 Aug 2026
Estimated project value
£41k–£75k
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: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².
Recently sold nearby
Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.
- 126 - 134 BAKER STREET, LONDON, W1U 6SHOther · Not a standard market sale · £17,300,0003 years ago3 May 2023
Contains HM Land Registry data © Crown copyright and database right 2023. 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
- 126, 134 Baker Street Westminster W1U 6SHPermittedNext door
- 126 - 134 Baker Street Westminster W1U 6SHPermittedNext door
- 126, 134 Baker Street Westminster W1U 6SHPermittedNext door
- 126, 134 Baker Street Westminster W1U 6SHPermittedNext door
- 126, 134 Baker Street Westminster W1U 6SHPendingNext door
- 128 Baker Street Westminster W1U 6TZPermittedNext door