Planning application
5 Montpelier Square London SW7 1JT
Works: Extension
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Retention of existing rear extension and alterations, with the layout of the lower ground, ground and fourth floor that are departures from the approved planning permission dated 12th October 2006 (RN: 06/01827/FULL); and retention of rear roof terrace and associated balustrade. [Linked with 26/01906/LBC]
As published by the council, reference 26/01905/FULL
Application record
- Reference
- 26/01905/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 24 Mar 2026
- Validated
- 16 Apr 2026
- Ward
- Knightsbridge & Belgravia
- Postcode
- SW7 1JT
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2026.
-
26/01906/LBC Awaiting decision
5 Montpelier Square London SW7 1JT
Retention of existing rear extension and alterations, with the layout of the lower ground, ground and fourth floor that are departures from the approved listed building consent dated 12th October 2006 (RN: 06/01828/LBC); and retention of rear roof terrace and associated balustrade. [Linked with 26/01905/FULL]
Timeline
Dates from the published record
-
24 Mar 2026
Received by Westminster
-
16 Apr 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 11 June 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 66 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Town Planning Bureau Agent, a planning consultancy
106 applications on PlanIndex · across 11 councils · 83% granted
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
28 documents 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 full applications in a median of 91 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
-
5 Montpelier Square London SW7 1JT
90% historically approved · decision due ~11 Jun
Retention of existing rear extension and alterations, with the layout of the lower ground, ground and fourth floor that are departures from the approved listed building consent dated 12th October 2006 (RN: 06/01828/LBC); and retention of rear roof terrace and associated balustrade. [Linked with 26/01905/FULL]
Awaiting decision Heritage and listed buildings Extension 25 docs -
1 Montpelier Square London SW7 1JT
90% historically approved · decision due ~15 Jul
Proposed levelling of the basement floorplate, relocation of the kitchen extract vent through the front elevation at lower ground floor level to the front lightwell, installation of additional condenser unit to the side lightwell/stairwell, with suitable acoustic attenuation, installation of secondary glazing to the front elevation, and double glazing to the rear elevation, and internal alterations to include replacement cornices and re-articulation of the drawing room. (Linked to 26/03332/FULL)
Awaiting decision Heritage and listed buildings Windows or glazing 27 docs -
4 Montpelier Square London SW7 1JT
Details of Code of Construction Practice pursuant to Condition 3 of planning permission dated 28th August 2021 (RN:21/02324/FULL).
Withdrawn Full applications 5 docs -
Centre Garden Montpelier Square London SW7 1JT
100% historically approved · decision due ~24 Mar
see attached survey T1 London Plane tree prune back from adjacent elm by 2m & clear building T2 Amelanchier clear light to max of 1 m T 3 Scarlet Oak lift over path T 6 Birch tree lift over path T 7 Cherry clear sign T12 N Maple clear other trees by 1.5m T 14 Cherry prune to clear magnolia by 1.5 m T 16 Lime climbing inspection T 18 London Plane Crown lift lower canopy T 22 London Plane tree clear building if necessary T 25 London Plane tree clear building if necessary T 27 Horse Chestnut Crown lift off lower trees & shrubs T 41 London Plane London Plane tree clear building if necessary T 47 Cherry Clear light & clear canopies form adjacent trees T 49 Elm Prune from adj cherries max 1.5 T1 ,22,41 may not require pruning if sufficient clearance
Awaiting decision Trees 5 docs -
32 Trevor Place London SW7 1LD
87% historically approved · decision due ~5 Oct
Demolition of the existing rear timber-framed single-glazed conservatory, construction of a replacement flat-roof rear ground floor extension. Replacement of existing rear pitched glazed roof above the basement lightwell with a walkable flat glazed roof, and installation of full-height aluminium double doors opening directly onto the rear ground floor terrace/ flat glazed roof. Alteration and extension of rear fence. Installation of louvre screen to existing AC unit.
Awaiting decision Full applications Extension Demolition +1Small domestic -
1 Montpelier Square London SW7 1JT
87% historically approved · decision due ~15 Jul
Variation of condition 1 of planning permission dated 2nd January 2024 (RN:23/03312/FULL) for the Excavation of a new basement, extension at rear lower ground to first floor levels with mechanical plant and enclosure to the roof of the new extension. Namely, to create a level basement at 1 Montpelier Square in lieu of the consented stepped basement Installation of kitchen extract vent through the front wall at lower ground floor level, install an additional condenser located under the side lightwell external staircase, with suitable acoustic treatment, installation of new secondary glazing to the front facade and new slimline double glazing to the rear facades, replacement cornice, re-articulation of the drawing room, provision of safe access to the roof via an access hatch for maintenance, replacement external door to utility room and removal of modern fireplace from breakfast room. (Linked to 26/03327/LBC)
Awaiting decision Full applications Extension Windows or glazing 27 docs
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