Planning application
Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA
Works: Extension Windows or glazing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Replacement of existing front elevaiton sash windows with slimline double-glazed heritage units together with minor repair and redecoration of existing facade and existing front doors; replacement of windows and doors in rear modern extension and internal lightwell along with formation of a new window opening. (Linked with 26/03247/FULL)
As published by the council, reference 26/03248/LBC
Application record
- Reference
- 26/03248/LBC
- Type
- Listed Building Consent Application
- Status
- Pending
- Received
- 18 May 2026
- Validated
- 28 May 2026
- Ward
- West End
- Postcode
- W1K 6PA
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2025: 1 approved, 0 refused.
-
26/03247/FULL Awaiting decision
Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA
Replacement of existing front elevation sash windows with slimline double-glazed heritage units; replacement of windows and doors in rear modern extension and internal lightwell along with formation of a new window opening. (Linked with 26/03248/LBC)
-
25/09294/LBC Granted
Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA
Replacement and reconfiguration of modern partitions at ground and lower ground floor level, along with the replacement of modern bathroom and kitchen fittings and finishes.
Timeline
Dates from the published record
-
18 May 2026
Received by Westminster
-
28 May 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 23 July 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 91 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Echlin Agent, registered in London
Active · incorporated 2015 · London
5 applications on PlanIndex · across 2 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
1 document on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat 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 heritage and listed building applications in a median of 119 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA
Replacement and reconfiguration of modern partitions at ground and lower ground floor level, along with the replacement of modern bathroom and kitchen fittings and finishes.
Granted Heritage and listed buildings 16 docs -
Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA
88% historically approved · decision due ~23 Jul
Replacement of existing front elevation sash windows with slimline double-glazed heritage units; replacement of windows and doors in rear modern extension and internal lightwell along with formation of a new window opening. (Linked with 26/03248/LBC)
Awaiting decision Full applications Extension Windows or glazing 23 docs -
Development Site At 1 Lees Place, 43 North Audley Street And 22 Grosvenor Square London W1K 6DT
88% historically approved · decision due ~15 Jun
Installation of a single-storey retail pod to the front of the building, fronting North Audley Street, for a temporary period from 1 September 2026 to 31 March 2027. (Linked with 26/02509/LBC)
Awaiting decision Full applications 16 docsSmall domestic -
Development Site At 1 Lees Place, 43 North Audley Street And 22 Grosvenor Square London W1K 6DT
90% historically approved · decision due ~15 Jun
Installation of a single-storey retail pod to the front of the building, fronting North Audley Street, for a temporary period from 1 September 2026 to 31 March 2027. (Linked with 26/02508/FULL)
Awaiting decision Heritage and listed buildings 6 docsSmall domestic -
2 Shepherd Close London W1K 6EA
Amendments to planning permission dated 23 June 2022 (RN:22/02527/FULL) for Enlargement of existing front lightwell, addition of rooflight over main staircase, relocation of lower ground floor door on the rear elevation, addition of lead capped entrance canopy at lower ground level, replacement lead roofing on rear outbuilding, alterations to fenestration openings at lower ground level, replacement fenestrations, and other associated works. NAMELY; revisions to window openings at front lower ground floor level and addition of air bricks.
Granted Amendments Loft or dormer Windows or glazing 11 docs -
Flat A 8 Lees Place London W1K 6LJ
88% historically approved · decision due ~30 Sep
Installation of three new condenser units located within an enclosure in the rear garden and enlargement of existing garden access door.
Decided Full applications
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Excavation of single-storey basement, internal reconfiguration and installation of modern services. (Linked with 26/07470/FULL)
-
26/07461/LBC Awaiting decision
1 Savile Row London W1S 3JR
Minor internal works comprising redecoration and upgrades to lighting, flooring and bathroom and kitchen facilities, together with external works including new lighting and signage.