Palace Street

25/01719/NMANon-Material AmendmentApproved

Discharge / amendments

Approved on 1 May 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 27 September 2021 (RN: 21/03339/FULL) for: Variation of Conditions 1 and 7 of planning permission dated 6 February 2019 (RN: 18/01971/FULL) for Alterations and extensions to the North, South, Alexandra and Mews Buildings (Castle Lane/Palace Street) for use as affordable housing (Class C3) comprising 86 units; including creation of balconies; construction of a cycle/bin store, lift and staircase to the rear of North Building; soft and hard landscaping including children's play area; cycle parking and other associated works (amendments to planning permission 12/02189/FULL) namely; to allow the removal of trees and to provide replacement planting.

Submitted: 11 April 2025
Council: City of Westminster

ReceivedSubmitted11 Apr
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided1 May

Decided in 20 days (council typically 49)

About this application

This is a planning application for an extension at Palace Street. Westminster has handled 230 applications of this type. This one was decided in 20 days, 4 weeks quicker than Westminster's typical decision time. The site is in the Birdcage Walk conservation area, with 2 listed buildings nearby. There have been 2 other applications at this address. In the past year there have been 276 applications across SJW_22.

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.Planning something similar? See what gets approved on your street

Application details

Application type: Non-Material Amendment

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Flood zone 3: High probability (rivers and sea)
Conservation area: Birdcage Walk
Article 4 direction: Article 4 Basement Development Permitted Rights Removed
Brownfield land register: Development Site At North, South, Alexandra And Mews Buildings At Castle Lane And Palace…Register site at or near this address · +1 more

Also checked, none recorded (21)

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 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.

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

6 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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