Planning application
40 Berkeley Square London W1J 5AL
Works: Extension Demolition
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Partial demolition, infilling, extension and alterations to the existing building to form a ten storey building for office use (Class E (g)(i)) comprising: foundation strengthening lightwell infill; infill extensions from level three to eight; demolition of existing level eight; rooftop extension to replace level eight, and form levels nine and ten; replacement façade and altered entrance location; creation of terraces and plant enclosure; urban greening and landscaping; cycle parking; and other associated and ancillary works.
As published by the council, reference 26/04056/FULL
Application record
- Reference
- 26/04056/FULL
- Category
- Full applications
- Status
- Pending
- Received
- 19 Jun 2026
- Validated
- 10 Aug 2026
- Postcode
- W1J 5AL
Timeline
Dates from the published record
-
19 Jun 2026
Received by Westminster
-
10 Aug 2026
Validated
Checked as complete and ready for consideration.
-
11 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 5 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 87 days over the applications it decided in the last year.
What happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 119 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
Berger House 36-38 Berkeley Square London W1J 5AE
Details of the blue roofs pursuant to condition 21 of planning permission dated 11th September 2020 (RN 19/09409/FULL)
Granted Full applications 7 docs -
Development Site At Former Berger House 36 To 38 Berkeley Square London
Details of BREEAM certification for Office use pursuant to condition 13(B) (Part) of planning permission dated 11th September 2020 (RN: 19/09409/FULL).
Granted Full applications 7 docs -
Development Site At Former Berger House 36 To 38 Berkeley Square London
Amendments to planning permission dated 11 September 2020 (RN: 19/09409/FULL) for the demolition of the existing building and redevelopment of the site to provide a new office (Class B1) use building, of sub-basement, part basement, part ground and eight upper storeys with a plant enclosure above, with flexible retail and/or office (Class A1 and / or B1) use at part ground, part basement and part sub-basement levels floor and associated works; NAMELY the amendment of Condition 13b to remove the reference of requirement for the submission of a BREEAM post construction report for retail.
Granted Amendments Demolition 7 docs -
34 Berkeley Square London W1J 5BF
90% historically approved · decision due ~8 May
Internal alterations including enlargement of existing internal wall openings to create new wall openings on second, third and fourth floors.
Awaiting decision Heritage and listed buildings 17 docs -
34 Berkeley Square London W1J 5BF
88% historically approved · decision due ~10 Jul
Replacement of one external sash window and three external glazed access doors to the rear of the building, maintenance, cleaning, repair, and re-decorations to the front facade and porch area of the building and replacement of black and white marble hallway flooring with new black and white marble flooring.
Awaiting decision Full applications Extension Windows or glazing 18 docsSmall domestic -
35 Berkeley Square London W1J 5BF
Installation of new office partitions to rear wing at ground floor level, and replacement of front step overcladding. General internal refit, reservicing and redecoration.
Granted Heritage and listed buildings 52 docs
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26/07315/FULL Awaiting decision
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Relocation of air conditioning units throughout to the lower ground floor lightwells within aluminium enclosure; replacement of all pipes with cast iron pipes; alteration to balconies including replacement of UPVC door with original door arrangement and replacement railing; reopening of previously infilled windows; replacement marble tiles at hallway of No.32 with Victorian floor tiles; replacement of all doors facing the communal staircase with the correct period style doors; removal of red clay tile leanto roof at first floor rear and the roof made good; removal of link bridges to the rear of the second floor and the rear of the third floor; and reopening of previously infilled windows to the stairs lobby at ground, first and second floor to No.30. (Linked with 26/07316/LBC)
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Replacement of existing windows and louvres.
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26/05984/FULL Decided
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Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.
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Alterations to the existing fixed windows to form two openable sash windows. (Linked with 26/07230/ADV)
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26/07224/FULL Awaiting decision
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Use of the building as an Embassy (sui generis) with reversion to Class E on cessation of occupation by the Government of the United Mexican States. Erection of a flagpole to front elevation.