Planning application
126 - 134 Baker Street London W1U 6SH
Works: New dwelling Extension Windows or glazing Major scheme
Read from the description, not a valuation. How we read the register
Decided. The decision notice on the council portal carries the outcome in full, including any conditions.
Proposal
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 amending the wording of Condition 3 to enable the relocation of the cycle store to ground floor level.
As published by the council, reference 26/04634/NMA
Application record
- Reference
- 26/04634/NMA
- Category
- Amendments
- Status
- Decided
- Received
- 10 Jul 2026
- Validated
- 10 Jul 2026
- Postcode
- W1U 6SH
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2026.
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26/06191/ADFULL Awaiting decision
126 - 134 Baker Street London W1U 6SH
Details of the mechanical ventilation system pursuant to condition 12 of planning permission dated 18th February 2026 (RN: 24/04852/FULL).
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26/06112/ADFULL Decided
126 - 134 Baker Street London W1U 6SH
Details of signed Appendix A checklist of the Code of Construction Practice pursuant to condition 13 of planning permission dated 18th February 2026 (RN: 24/04852/FULL).
Timeline
Dates from the published record
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10 Jul 2026
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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11 Sep 2026
Status changed to Decided
Previously Pending.
After the decision
Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.
About amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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126 - 134 Baker Street London W1U 6SH
89% historically approved · decision due ~8 Dec
Details of signed Appendix A checklist of the Code of Construction Practice pursuant to condition 13 of planning permission dated 18th February 2026 (RN: 24/04852/FULL).
Decided -
126 - 134 Baker Street London W1U 6SH
89% historically approved · decision due ~5 Nov
Details of the mechanical ventilation system pursuant to condition 12 of planning permission dated 18th February 2026 (RN: 24/04852/FULL).
Awaiting decision -
128 Baker Street London W1U 6TZ
Display of externally illuminated fascia and projecting signs.
Granted Advertising 6 docs -
128 Baker Street London W1U 6TZ
Display of externally illuminated fascia sign and internally-illuminated projecting sign.
Refused Advertising 5 docs -
128 Baker Street London W1U 6TZ
Installation of new entrance doors and cladding to entrance pilasters.
Granted Full applications 10 docs -
6 Porter Street London W1U 6DD
Details of sample of the proposed stonework material pursuant to Condition 2 of planning permission dated 28 July 2009 (RN:09/03735).
Granted Full applications 2 docs
Other amendment applications
In Westminster
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26/07459/NMA Awaiting decision
1 Hanover Square London W1S 1HA
Amendments to planning pemrission dated 10 October 2025 (RN: 25/01558/FULL) for the: Partial demolition, refurbishment and extension of the existing building to provide a sub-basement, basement, ground plus eight storey building; infilling and stepped rear extension; excavation of a new sub-basement level; installation of new plant equipment at basement and roof level; terraces at fourth, fifth, sixth, seventh and eighth floor levels; soft and hard landscaping; reprovision of car parking; new cycle parking facilities; and associated external works. Use of the building for retail and/or restaurant (Class E) on part ground floor and office (Class E) on all other floors. NAMELY, to allow alterations to the design of the ground floor frontages on Hanover Square and St George Street.
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26/07438/NMA Awaiting decision
29 - 31 Hill Street London W1J 5LS
Amendments to planning permission dated 1st July 2025 (RN 25/01006/FULL) for the external alterations at roof level including the creation of Level 04 roof terrace for use in association with existing office (Class E), replacement and installation of new plant and landscaping, replacement of windows, introduction of louvres, removal and replacement of rooflights, installation of new rooflight and other associated works. NAMELY, for alterations comprising of the removal of window sash boxes and weights, changes to the window mullion arrangement, the removal of two sash windows, the installation of secondary glazing, the removal of existing chamber hatch and installation of extract vent and integrated bench, the external replacement of rainwater goods and hoppers, the removal of bricks and installation of airbricks, minor demolition works, replacement of roof covering, removal of ductwork, roof plant rearrangement, the installation of a new external door to plant area, minor layout alterations and other associated works.
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26/07389/NMA Decided
Flat 1 5 Grittleton Road London W9 2DD
Amendments to planning permission dated 04 June 2025 (RN: 25/02022/FULL), NAMELY, amendment of Condition 4 to correct the property address from 9 Aldridge Road Villas to Flat 1 5 Grittleton Road.
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26/07377/NMA Awaiting decision
60 Ledbury Road London W11 2AJ
Amendments to planning permission dated 2nd October 2025 (RN 25/04018/FULL) for the Partial demolition, refurbishment, and erection of a mansard roof extension to form a new third floor with dormers to front, side and rear elevations; to form 6 flats (Class C3) on upper floors; external plant equipment and ductwork; lower ground floor excavation to increase floor to ceiling height; replacement windows; cycle parking and associated external alterations; use of the part ground floor and lower ground floor as retail and restaurant (Class E). Site includes 60-68 Ledbury Road) NAMELY, An amendment to the basement and ground floor drawing reference numbers; amendment to the description of development, in reference to restaurant and or retail use; and amendments to C
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26/07375/NMA Awaiting decision
77 Hereford Road London W2 5BB
Amendments to planning permission dated 4th August 2026 (RN 26/03970/FULL) for the Replacement of roof terrace access stair with glazed hatch, new timber decking and front and rear roof railings to roof terrace, with infilling side window of closet wing. NAMELY, Hinged hatch access substituted by sliding hatch.