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Planning application

25/05196/FULL

9 Wilton Crescent London SW1X 8SP

Granted Westminster Full Planning Permission Application

Proposal

Installation of replacement mechanical plant to front main roof level.

As published by the council, reference 25/05196/FULL

Timeline

Dates from the published record

  1. 25 Jul 2025

    Received by Westminster

  2. 21 Aug 2025

    Validated

    Checked as complete and ready for consideration.

  3. 7 Oct 2025

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

  • 25/05197/LBC Granted

    9 Wilton Crescent London SW1X 8SP

    Installation of replacement mechanical plant to front main roof level.

    25 Jul 2025 0m away Heritage and listed buildings
  • 25/05308/ADFULL Refused

    5 Wilton Crescent London SW1X 8RN

    Details of sample of brickwork pursuant to Condition 5 of planning permission dated 03 July 2025 (RN: 25/03433/FULL).

    30 Jul 2025 8m away Full applications
  • 25/06840/ADLBC Granted

    5 Wilton Crescent London SW1X 8RN

    Details of sample panel of brickwork pursuant to Condition 4 of listed build ling consent dated 3 July 2025 (RN 25/03523/LBC).

    24 Sep 2025 8m away Conditions
  • 26/02596/TPO Awaiting decision

    Open Space Centre Of Wilton Crescent London SW1X 8RN

    T339 - London Plane: RVL - necessary, 3 months ? large Massaria infected limb, at 21m to the south over the garden (200mm diameter).

    20 Apr 2026 8m away Trees
  • 25/06785/ADFULL Granted

    5 Wilton Crescent London SW1X 8RN

    Details of sample panel of brickwork pursuant to Condition 5 of planning permission dated 3 July 2025 (RN 25/03433/FULL).

    22 Sep 2025 8m away Full applications
  • 22/03046/LBC Granted

    10 Wilton Crescent London SW1X 8RN

    Refurbishment of existing townhouse and attached mews house, erection of lower ground floor infill extension with ground floor terrace above, erection of ground floor rear mews extension with first floor terrace above, erection of first floor rear mews extension, replacement of first floor conservatory to rear of main house, and installation of roof level plant equipment to main house, and associated internal alterations.

    6 May 2022 8m away Heritage and listed buildings

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