The Dilly 21 Piccadilly London W1J 0BH

26/02997/ADLBCApproval of Details (ADLBC)Approved

Discharge / amendments

Approved on 21 May 2026

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

Detailed drawings of the existing windows and historic secondary glazing, and the proposed refurbishment works, proposed windows, and proposed secondary glazing for each of the following window types: 1, 2, 3, 4, 5(a+b), 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 pursuant to condition 3 of listed building dated 5th July 2023 (RN:22/04551/LBC) (Linked to 26/02953/ADFULL)

Received: 5 May 2026
Council: City of Westminster
Ward: West End
Agent: Consarc Design Group

ReceivedReceived5 May
ValidatedValidated5 May
Consult.Consultation
TargetTarget Date30 Jun
DecidedDecided21 May

Decided in 16 days (council typically 49)

About this application

This is an application to discharge conditions at The Dilly 21 Piccadilly London W1J 0BH. Westminster has handled 3,063 applications of this type. This one was decided in 16 days, 5 weeks quicker than Westminster's typical decision time. The site is in the Regent Street conservation area, with 11 listed buildings nearby. There have been 10 other applications at this address. In the past year there have been 478 applications across West End. We hold 940 applications in total for the W1J postcode area.

92% of conditions 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: W1J 0BH
Application type: Approval of Details (ADLBC)
Scale / size: Small

Planning application dates

Date validated: 5 May 2026
Target decision date: 30 June 2026

Applicant and agent

Agent: Consarc Design Group
Architect profile: CONSARC DESIGN GROUP LIMITED
Agent address: The Gas Office 4 Cromac Quay Ormeau Road Belfast BT2 7JD

Planning decision

Statutory period: 56 days

Additional information

Comments: 0
Documents: 9

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Regent Street
Listed building: Grade II: Denman HouseOn 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

2026
5 May
Internal refurbishment of Level 2 lift lobby (Retrospective application).
ApprovedListed building consentFiled alongside26/02808/LBC
2026
5 May
Detailed drawings of the existing windows and historic secondary glazing, and the proposed refurbishment…
ApprovedDischarge of conditionsPart of26/02953/ADFULL
2026
5 May
Detailed drawings of the existing windows and historic secondary glazing, and the proposed refurbishment…
This applicationApprovedDischarge of conditions26/02997/ADLBC

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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