43 - 45 Portman Square London W1H 6LY

26/04721/ADFULLApproved

Discharge / amendments

Approved on 7 October 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 accurate and verified estimates of the 'Be Seen' energy performance indicators for the Development as outlined in chapter 3 (Planning Stage) of the Be Seen Guidance pursuant to condition 33 (A) of planning permission dated 7th April 2025 (RN:24/04987/FULL)

Received: 15 July 2026
Public comments: 0 · last counted 2 October 2026
Council: City of Westminster

ReceivedReceived15 Jul
ValidatedValidated15 Jul
Consult.Consultation
TargetTarget Date
DecidedDecided7 Oct

Decided in 84 days

About this application

This is a planning application at 43 - 45 Portman Square London W1H 6LY. Westminster has handled 27,078 applications of this type. This one was decided in 84 days, 5 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 1 listed building nearby. There have been 4 other applications at this address. We hold 896 applications in total for the W1H postcode area.

Application details

Postcode: W1H 6LY

Planning application dates

Date validated: 15 July 2026

Additional information

Documents: 8

Site constraints

Checking the site

2/3

Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

Conservation area: Portman Estate
Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
Flood zone 1: Low probability (rivers and sea)

Also checked, none recorded (22)

flood storage areas, listed buildings, 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.

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.

Track this application

Get email alerts when there is a planning decision or status change.

Get email alerts near W1H

New planning applications delivered to your inbox daily.

Around this site

Nearby applications

Discuss this application on r/PlanningPermissionUK

For applicants and trades

Contractors near this project

View all contractors

What's been approved on your street?

See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.

Get The Signal Report