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Planning application

26/01905/FULL

5 Montpelier Square London SW7 1JT

Awaiting decision Westminster Full Planning Permission Application

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

Timeline

Dates from the published record

  1. 24 Mar 2026

    Received by Westminster

  2. 16 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 21 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 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]

    24 Mar 2026 0m away Heritage and listed buildings
  • 26/03327/LBC Awaiting decision

    1 Montpelier Square London SW7 1JT

    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)

    20 May 2026 7m away Heritage and listed buildings
  • 26/00485/TPO Awaiting decision

    Centre Garden Montpelier Square London SW7 1JT

    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

    27 Jan 2026 7m away Trees
  • 26/03332/FULL Awaiting decision

    1 Montpelier Square London SW7 1JT

    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)

    20 May 2026 28m away Full applications
  • 25/05946/FULL Granted

    21 Trevor Place London SW7 1LB

    Installation of a lift overrun at main roof level.

    21 Aug 2025 50m away Full applications
  • 26/00407/TCA Granted

    36 Montpelier Street London SW7 1HD

    G1 2 x Olive : Reduce by height by around 30-40% (3-4m) and scale remaining crowns to shape and contain.

    23 Jan 2026 56m away Trees

In Westminster

  • 26/04824/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Detailed design and specification of new blinds to NZH based on mock-up trials on-site. pursuant to condition 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).

    20 Jul 2026 Full applications
  • 26/04829/ADFULL Granted

    New Zealand House 80 Haymarket London SW1Y 4TE

    Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)

    20 Jul 2026 Full applications
  • 26/04841/ADFULL Granted

    29 Henstridge Place London NW8 6QD

    Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).

    20 Jul 2026 Full applications
  • 26/04989/FULL Awaiting decision

    1 Kildare Terrace London W2 5JT

    Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.

    24 Jul 2026 Full applications
  • 26/04986/FULL Awaiting decision

    Inver Court Inverness Terrace London W2 6JB

    Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.

    24 Jul 2026 Full applications