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29, 31, Hill Street, W1J 5LS

25/01007/LBCFull planning & listed building consentApproved
Full

Approved on 9 July 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

External alterations at roof level including the creation of Level 04 roof terrace, the replacement and installation of new plant and landscaping, replacement of windows and the introduction of louvres, painting of facade, removal and replacement of rooflights, installation of new rooflight, internal alterations including removal of modern partitions and doors and reinstatement of openings between 29 and 31 Hill Street, replacement of existing plant, internal decorations, the creation of new cycle facilities and other associated works. (Linked to 25/01006/FULL)

Submitted
4 March 2025
  1. Received4 Mar
  2. Validated
  3. Consult.
  4. Target
  5. Decided9 Jul

Decided in 127 days (council typically 49)

About this application

This is a planning application for window replacement at 29, 31, Hill Street, W1J 5LS. Westminster has handled 666 applications of this type. This one was decided in 127 days, 11 weeks longer than Westminster's typical decision time. The site is in the Mayfair conservation area, with 20 listed buildings nearby. There have been 3 other applications at this address. In the past year there have been 469 applications across WEW_22. We hold 935 applications in total for the W1J postcode area.

89% of full planning & listed building consent 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

Postcode
W1J 5LS
Application type
Full planning & listed building consent

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Mayfair
  • Listed building: Grade II: 29, Hill Street W1On this site · +4 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Tree Preservation Order: Ref W90Protected tree on or next to this site
  • Brownfield land register: 39 Hill Street London W1J 5LZRegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (19)

flood storage areas, 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 and heritage coasts.

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.

Source: Westminster

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

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