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Planning application

Apartment 8 91 New Cavendish Street London W1W 6XF

Granted Westminster 25/08499/FULL Full Planning Permission Application

Works: Extension

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Extension to existing roof terrace

As published by the council, reference 25/08499/FULL

Application record

Reference
25/08499/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Application Permitted
Received
20 Nov 2025
Validated
12 Jan 2026
Decided
18 May 2026
Ward
West End
Decision by
Delegated Decision
Postcode
W1W 6XF

Timeline

Dates from the published record

  1. 20 Nov 2025

    Received by Westminster

  2. 12 Jan 2026

    Validated

    Checked as complete and ready for consideration.

  3. 18 May 2026

    Decision issued: Application Permitted

  4. 10 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in London

5 applications on PlanIndex

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Documents

Plans, drawings, consultee responses and the officer's report

20 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.

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What this grant of permission means

Westminster granted permission on 18 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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 500 metres

  • 95 New Cavendish Street London W1W 6XF

    25/07751/ADFULL Submitted 27 Oct 2025 4m away

    87% historically approved · decision due ~22 Dec

    Details of samples of 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 3 of planning permission dated 9th July 2024 (RN:24/00892/FULL)

    Awaiting decision Full applications Windows or glazing 6 docs
  • 138 Great Portland Street London W1W 6PZ

    13/03776/AD7 Submitted 25 Apr 2013 13m away

    Display for a temporary period of six months of a non-illuminated estate agent's board on the face of the building at a height of between 3.0m and 4.6m above pavement level and measuring 1.2m x 0.9m.

    Granted Advertising 2 docs
  • Ground Floor & Front Basem 138 Great Portland Street London W1W 6PZ

    03/08954/ADFULL Submitted 20 Nov 2003 13m away

    Details of proposed ramp pursuant to condition 1 of planning permission dated 27 October 2003 (RN 03/06365) for installation of new shopfront and associated alterations.

    Granted Full applications Windows or glazing 3 docs
  • 138 Great Portland Street London W1W 6PZ

    03/06365/FULL Submitted 14 Aug 2003 13m away

    Installation of new shopfront, roller blind and ramp for disabled access.

    Granted Full applications Windows or glazing 8 docs
  • Flat 4 146 Great Portland Street London W1W 6QB

    25/05433/ADFULL Submitted 4 Aug 2025 28m away

    Detailed drawings of the new railings, windows, doors and roof lights pursuant to condition 5 of planning permission dated 27th July 2023 (RN:23/03389/FULL)

    Granted Full applications Loft or dormer Windows or glazing 13 docs
  • Flat 4 146 Great Portland Street London W1W 6QB

    25/05897/ADFULL Submitted 4 Aug 2025 29m away

    Detail of samples 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 4 of planning permission dated 27th July 2023 (RN:23/03389/FULL)

    Granted Full applications Windows or glazing 13 docs

In Westminster

  • 26/06024/FULL Awaiting decision

    House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA

    Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06025/LBC)

    3 Sep 2026 Full applications
  • 26/06017/FULL Awaiting decision

    38 Lauderdale Mansions Lauderdale Road London W9 1NE

    Installation of an external AC Unit / Heat Pump at roof level.

    2 Sep 2026 Full applications
  • 26/05938/FULL Awaiting decision

    24 Vincent Square London SW1P 2NJ

    Subdivision of existing residential property to create two self-contained 3-bedroom family homes, along with cycle parking and associated external alterations.

    1 Sep 2026 Full applications
  • 26/05935/FULL Awaiting decision

    47 Hereford Road London W2 5AH

    Installation of one number new external condenser unit to the southerly elevation service alley.

    1 Sep 2026 Full applications
  • 26/05959/FULL Awaiting decision

    Basement And Ground Floor 50 New Bond Street London W1S 1BJ

    Installation of three new condensers on the roof, within an existing designated plant area.

    1 Sep 2026 Full applications