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Market Mews

25/01570/ADFULLApproval of details reserved by a condition (discharge)Approved
Discharge / amendments

Approved on 21 March 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.

Proposal

Drawings showing the following alteration to the scheme omission of casement windows proposed to No. 37 Hertford Street and their replacement with sash windows pursuant to Condition 34 (part) of planning permission dated 24th May 2023 (RN:22/05759/FULL)

Submitted
7 March 2025
  1. Received7 Mar
  2. Validated
  3. Consult.
  4. Target
  5. Decided21 Mar

Decided in 14 days (council typically 49)

About this application

This is a planning application for window replacement at Market Mews. Westminster has handled 1,733 applications of this type. This one was decided in 14 days, 5 weeks quicker than Westminster's typical decision time. The site is in the Mayfair conservation area, with 20 listed buildings nearby. There have been 5 other applications at this address. In the past year there have been 469 applications across WEW_22.

89% of approval of details reserved by a condition (discharge) applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Application type
Approval of details reserved by a condition (discharge)

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Mayfair
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)

flood storage areas, listed buildings, 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 2026-11-03. 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.

Planning history at this site

10 other applications at this property, newest first.

  1. 2026
    27 Jul

    Details of new balustrades to 37 Hertford Street and new windows and external door to 37 Hertford Street…

    ApprovedDischarge of conditions26/05025/ADFULL
  2. 2026
    24 Feb

    Amendments to planning permission dated 31st October 2025 (RN:24/05472/FULL

    ApprovedNon-material amendment26/01162/NMA
  3. 2025
    12 Nov

    Amendments to planning permission dated 31st October 2025 (RN 24/05472/FULL

    ApprovedNon-material amendment25/08286/NMA
  4. 2025
    25 Jun

    Details of a biodiversity management plan pursuant to Condition 42 of planning permission dated 31 October…

    ApprovedDischarge of conditions25/04355/ADFULL
  5. 2025
    3 Jun

    Details of samples of the facing materials pursuant to condition 29 (part) of planning permission dated 24th…

    ApprovedDischarge of conditions25/03740/ADFULL
  6. 2025
    9 May

    Detailed drawings (scale 1:20 and 1:5) of the new external door to 37 Hertford Street and new balustrades to…

    RefusedDischarge of conditions25/01571/ADFULL

Source: Westminster

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

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