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14, Cavendish Square, W1G 9DB

25/05407/ADFULLApproval of details reserved by a condition (discharge)Permitted
Discharge / amendments

Proposal

Details of an Operational Management Plan pursuant to Condition 3 of planning permission dated 9th April 2025 (RN: 25/00722/FULL)

Received
8 August 2025
Decided
10 September 2025
Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

  1. Received8 Aug
  2. Validated
  3. Consult.
  4. Target
  5. Decided10 Sep

Decided in 33 days (council typically 49)

7 weeks typical decision time in Westminster89% of approval of details reserved by a condition (discharge) applications approved

This is a planning application at 14, Cavendish Square, W1G 9DB. Westminster has handled 1,650 applications of this type and approves 89% of them, typically deciding them in 33 days. This one was decided in 33 days. The site is in the Harley Street conservation area, with 16 listed buildings nearby. There have been 2 other applications at this address. In the past year there have been 146 applications across MBW_22. We hold 574 applications in total for the W1G postcode area.

Application Details

Reference
25/05407/ADFULL
Address
14, Cavendish Square, W1G 9DB
Postcode
W1G 9DB
Local Authority
Westminster
Application Type
Approval of details reserved by a condition (discharge)
Decision Status
Permitted

Applicant & Agent

Planning Application Dates

Date Decided
10 September 2025
Date Submitted
8 August 2025

Planning Decision

Publicity

Appeal

Additional Information

Coordinates
51.517113, -0.145530
Enriching application data
2/3
Council recordsAppealsFlood risk

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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Associated applications

  1. 2025
    8 Aug

    Details of an Operational Management Plan pursuant to Condition 3 of planning permission dated 9th April 2025…

    This applicationApprovedDischarge of conditions25/05407/ADFULL
  2. 2025
    3 Feb

    Use of lower ground, ground, first, and second floors as a not-for-profit museum (Use Class F1).

    ApprovedFull Planning Permission ApplicationPart of25/00722/FULL

Planning constraints

Designations that overlap or adjoin the site outline.

  • Conservation area: Harley Street
  • Listed building: Grade II: 15, Cavendish Square W1On or next to this site · +3 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)

flood storage areas, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

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