21, Upper Montagu Street, W1H 2PQ

25/00195/LBCListed building consentApproved

Approved on 27 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

The demolition of the existing and the erection of a new mansard roof. (Linked to 25/00255/FULL)

Submitted: 4 March 2025
Council: City of Westminster

ReceivedSubmitted4 Mar
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided27 Jun

Decided in 115 days (council typically 49)

About this application

This is a listed building consent application for demolition at 21, Upper Montagu Street, W1H 2PQ. Westminster has handled 675 applications of this type. This one was decided in 115 days, 9 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 20 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 191 applications across MBW_22. We hold 896 applications in total for the W1H postcode area.

90% of 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.Planning something similar? See what gets approved on your street

Application details

Postcode: W1H 2PQ
Application type: Listed building consent

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Portman Estate
Listed building: Grade II: 105A, CRAWFORD STREET W1 (See details for further address information)On this site · +1 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 2026-11-03. 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
4 Mar
The demolition of the existing and the erection of a new mansard roof. (Linked to 25/00255/FULL
This applicationApprovedListed building consent25/00195/LBC
2025
4 Mar
The demolition of the existing mansard roof and the erection of a new mansard. (Linked to 25/00195/LBC
ApprovedApplicationPart of25/00255/FULL

Planning history at this site

7 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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