30 Sackville Street London W1S 3DY

26/02282/ADFULLApproval of Details (Full PP)Approved

Discharge / amendments

Approved on 7 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

Details of landscaping plan including detailed drawings and a biodiversity management plan in relation to the green roof above the new rear ground floor extension pursuant to condition 20 of planning permission dated 17th February 2025 (RN: 25/01072/FULL).

Received: 7 April 2026
Council: City of Westminster
Ward: West End
Agent: AD DESIGN CONCEPTS

ReceivedReceived7 Apr
ValidatedValidated7 Apr
Consult.Consultation
TargetTarget Date2 Jun
DecidedDecided7 May

Decided in 30 days (council typically 49)

About this application

This is an application to discharge conditions at 30 Sackville Street London W1S 3DY. Westminster has handled 3,063 applications of this type. This one was decided in 30 days, 3 weeks quicker than Westminster's typical decision time. The site is in the Mayfair conservation area, with 15 listed buildings nearby. There have been 5 other applications at this address. In the past year there have been 484 applications across West End. We hold 791 applications in total for the W1S 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.See what's approved near your address

Application details

Postcode: W1S 3DY
Application type: Approval of Details (Full PP)
Scale / size: Small

Planning application dates

Date validated: 7 April 2026
Target decision date: 2 June 2026

Applicant and agent

Agent: AD DESIGN CONCEPTS
Agent address: 25 GRAMPIAN GARDENS LONDON NW2 1JH United Kingdom

Planning decision

Statutory period: 56 days

Additional information

Planning Portal ID: PP-14839352
Comments: 0
Documents: 4

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Mayfair
Listed building: Grade II: 30 and 30a, Sackville Street W1On this site · +3 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
7 Apr
Details of landscaping plan including detailed drawings and a biodiversity management plan in relation to the…
This applicationApprovedDischarge of conditions26/02282/ADFULL
2025
17 Feb
Amendments to planning permission dated 13th April 2022 (RN 21/03068/FULL
ApprovedNon-material amendmentFiled alongside25/01055/NMA
2025
17 Feb
Erection of a single storey extension at rear ground floor level to provide additional office floorspace and…
ApprovedFull Planning Permission ApplicationPart of25/01072/FULL
2025
17 Feb
Erection of a single storey extension at rear ground floor level for and installation of PV panels at roof…
ApprovedListed building consentRelated25/01073/LBC

Planning history at this site

9 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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