Flat 3 81 Duke Street London W1K 5PE
Approved on 3 October 2025
Council decision: Application PermittedDelegated (officer decision)
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
Installation of two air conditioning condenser units at roof level and the installation of a number of AC units internally hidden within existing joinery and associated alterations.
- Received
- 16 July 2025
- Decision level
- Delegated (officer decision)
- Public comments
- 1
- Council
- City of Westminster
- Ward
- West End
- Agent
- Peek Architecture Ltd
- ReceivedReceived16 Jul
- ValidatedValidated22 Jul
- Consult.Consultation
- TargetTarget Date16 Sep
- DecidedDecided3 Oct
Decided in 73 days (council typically 49)
About this application
This is a heritage application at Flat 3 81 Duke Street London W1K 5PE. Westminster has handled 2,677 applications of this type. This one was decided in 79 days, 4 weeks longer than Westminster's typical decision time. The site is in the Mayfair conservation area, with 13 listed buildings nearby. There has been 1 other application at this address. In the past year there have been 484 applications across West End. We hold 886 applications in total for the W1K postcode area.
93% of heritage 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
- W1K 5PE
- Application type
- Listed Building Consent Application
- Scale / size
- Small
Planning application dates
- Date validated
- 22 July 2025
- Consultation expiry
- 20 August 2025
- Target decision date
- 16 September 2025
Applicant and agent
- Agent
- Peek Architecture Ltd
- Agent address
- 9 Lauderdale Parade Maida Vale London W9 1LU
Planning decision
- Statutory period
- 56 days
Publicity
- Last advertised
- 30 July 2025
- Advertisement expiry
- 20 August 2025
Additional information
- Planning Portal ID
- PP-14180513
- Documents
- 31
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Mayfair
- 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.
© 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.
Planning history at this site
13 other applications at this property, newest first.
- 202522 Jul
This Design, Access supports a revised planning application for the installation of two air conditioning…
ApprovedFull planning permission25/04738/FULL - 202514 Jul
Internal alterations to the existing guest bathroom and library to create a new bedroom with an en-suite…
ApprovedListed building consent25/04596/LBC - 202510 Apr
Installation of two AC condenser units on the roof and the installation of a number of AC units internally…
RefusedListed building consent25/02259/LBC - 202510 Apr
Installation of two AC condenser units on the roof.
RefusedListed building consent25/02258/FULL - 20257 Mar
The removal of the existing non-original fire surrounds in the dining room and library and to re-instate new…
ApprovedListed building consent25/00983/LBC - 20257 Mar
Enlargement of two replacement dormer windows at rear (east) roof level. (Linked with 25/00817/FULL
WithdrawnListed building consent25/00818/LBC - 20257 Mar
Enlargement of two replacement dormer windows at rear (east) roof level. (Linked with 25/00818/LBC
WithdrawnListed building consent25/00817/FULL - 202512 Feb
Internal alterations to the main existing internally doors to increase the door openings with like-for-like…
WithdrawnListed building consent25/00982/LBC - 202512 Feb
Retrofitting existing windows with slim-line double glazing, replacement of weights and refurbishment of…
ApprovedListed building consent25/00576/LBC - 202512 Feb
Retrofitting existing windows with slim-line double glazing, replacement of weights and refurbishment of…
ApprovedListed building consent25/00575/FULL - 202512 Feb
Retention of window surround and sash boxes; replacement of panels and weights; Allow for panels to be…
WithdrawnListed building consent25/00573/LBC - 20255 Feb
Internal alterations to the existing guest bathroom and library to create a new bedroom with an en-suite…
ApprovedListed building consent25/00752/LBC - 20257 Jan
Internal alterations at third and fourth (loft) floor levels.
ApprovedListed building consent24/08948/LBC
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- Flat 3 81 Duke Street London W1K 5PE25/00752/LBC · HeritageApproved0.0 mi
- 11 Binney Street London W1K 5BD24/01044/FULL · FullApproved0.0 mi
- 18 - 20 Weighhouse Street London W1K 5LU24/07981/FULL · FullAwaiting decision0.0 mi
- 18 - 20 Weighhouse Street London W1K 5LU25/00670/ADV · AdvertisingAwaiting decision0.0 mi
- Darley House 27 Gilbert Street London W1K 5HQ23/05029/ADLBC · ConditionsApproved0.0 mi
For applicants and trades
Contractors near this project
Find contractors for roofing near this site- Avent Roofing ServicesVerifiedWestminsterRoofing0.5 mi
- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman0.9 mi
- Orient Construction Consultancy LimitedVerifiedLondon4.1 mi
- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering5.2 mi
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