22, Hill Street, W1J 5NJ

25/02499/NMANon-Material AmendmentApproved

Approved on 3 June 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

Amendments to planning permission dated 12 July 2024 (RN:24/02026/FULL) for Refurbishment and external alterations comprising of rear extension at basement and ground floor levels; alterations to the modern annex and annex link; roof level extension together with extended staircase to provide access; creation of a new external roof terrace; bowed window/rear addition; new door opening in lieu of a window in front basement lightwell; installation of a new dry riser inlet; series of enhancements to the street façade on Hill Street; installation of new plant and enclosure, and other associated works Namely, Various minor external alterations comprising of change of angle of first floor rooflights; rear bow extension modifications; party wall to be raised in brick; new conservation rooflight at roof level and other associated works.

Submitted: 10 April 2025
Council: City of Westminster

ReceivedSubmitted10 Apr
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided3 Jun

Decided in 54 days (council typically 49)

About this application

This is a planning application for a rear extension at 22, Hill Street, W1J 5NJ. Westminster has handled 230 applications of this type. This one was decided in 54 days, 5 days longer than Westminster's typical decision time. The site is in the Mayfair conservation area, with 20 listed buildings nearby. There have been 8 other applications at this address. In the past year there have been 469 applications across WEW_22. We hold 940 applications in total for the W1J postcode area.

86% of non-material amendment 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 5NJ
Application type: Non-Material Amendment

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: 22, Hill Street W1On this site · +3 more
Article 4 direction: Article 4 Basement Development Permitted Rights Removed
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 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

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.

Associated applications

2025
10 Apr
Amendments to planning permission dated 12 July 2024 (RN:24/02026/FULL
This applicationApprovedNon-material amendment25/02499/NMA
2025
9 Apr
Various minor internal and external alterations comprising of rearrangements of internal lobby, refuse and…
ApprovedListed building consentFiled alongside25/02437/LBC

Planning history at this site

10 other applications at this property, newest first.

Source: Westminster

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

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