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1, Albemarle Street, West End, W1S 4HA

26/07075/LBCAll OtherAwaiting decision
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

Erection of infill extensions at rear first, fifth, sixth floor and roof level, creation of terraces at sixth floor and roof level; reconfiguration of core, installation and replacement of plant to roof level, alterations to the ground floor facade including the enclosure of the existing recessed entrance to create a flushed entrance at Albemarle House, alterations to the ground floor facade and entrance of 2 Albemarle Street, installation of replacement windows to front and side elevations, installation of enlarged windows to rear elevation and associated works, alterations to dormer windows at fifth and sixth floor level to standardise the alignment of mansard windows and increase the height and width of the windows, internal refurbishment of offices (Class E) to provide improved and additional office accommodation, pedestrian access, cycle parking and other associated works. (Linked to 26/07074/FULL)

Submitted
15 October 2026
  1. Received15 Oct
  2. Validated
  3. Consult.
  4. Target
  5. Decided

About this application

This is a planning application for a dormer extension at 1, Albemarle Street, West End, W1S 4HA. Westminster has handled 1,801 applications of this type. It has been with the council since 15 October 2026 and is still awaiting a decision. The site is in the Mayfair conservation area, with 20 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 474 applications across WEW_22. We hold 791 applications in total for the W1S postcode area.

92% of all other 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
W1S 4HA
Application type
All Other

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

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.

© 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.

Associated applications

  1. 2026
    15 Oct

    Erection of infill extensions at rear first, fifth, sixth floor and roof level, creation of terraces at sixth…

    PendingAll OtherPart of26/07074/FULL
  2. 2026
    15 Oct

    Erection of infill extensions at rear first, fifth, sixth floor and roof level, creation of terraces at sixth…

    This applicationPendingListed building consent26/07075/LBC

Source: Westminster

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

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Before the decision

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