Skip to content

6 - 9 Carlton House Terrace London SW1Y 5AG

26/05675/LBCApproved

Approved on 2 October 2026

4 conditions

Site boundary (council red line)

Proposal

Installation of a fire door Marble Hall in No 6 and Corridor in No 7 at Ground Floor level and fire glazing to the fanlight to the door to the entrance to the Executive Directors Flat in No 7 at Second Floor level. Replacement ofthe existing doors with fully glazed double doors at Ground Floor level, installation of a single pane of clear Pyran S glass in an intumescent glazing U channel on the Flat side of the existing fanlight to the entrance door to the Executive Director's flat at second floor level.

Received
19 August 2026
  1. Received19 Aug
  2. Validated19 Aug
  3. Consult.
  4. Target
  5. Decided2 Oct

Decided in 44 days

About this application

This is a planning application for window replacement at 6 - 9 Carlton House Terrace London SW1Y 5AG. Westminster has handled 27,108 applications of this type. This one was decided in 44 days, 5 days quicker than Westminster's typical decision time. The site is in the St James's conservation area, with 8 listed buildings nearby. There have been 3 other applications at this address. We hold 969 applications in total for the SW1Y postcode area.

Application details

Postcode
SW1Y 5AG

Planning application dates

Date validated
19 August 2026

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.

Planning history at this site

5 other applications at this property, newest first.

  1. 2026
    30 Oct

    Discharge of Condition 4 - The Royal Society - Fire door and fire resisting glazing

    ApprovedDischarge of conditions26/07408/ADLBC
  2. 2024
    10 Dec

    Alteration to the existing male and female washrooms at second floor level to include a wheelchair accessible…

    PendingListed building consent24/08582/LBC
  3. 2015
    1 Dec

    Lifting 6.5x2m area of floor finishes / floor boards on the first floor (spread over three locations) to…

    ApprovedListed building consent15/11161/LBC
  4. 2002
    13 Jun

    Methodology for recording construction pursuant to condition 4 of listed building consent dated 8 February…

    ApprovedListed building consent02/04503/ADLBC
  5. 2002
    7 Jun

    Temporary display of a non-illuminated board sign, measuring 1.66 metres by 1.2 metres and attached to the…

    ApprovedListed building consent02/04341/LBC

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 SW1Y

New planning applications delivered to your inbox daily.

Around this site

Discuss this application on r/PlanningPermissionUK

For applicants and trades

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