Planning application
Flat 146 4 Whitehall Court London SW1A 2EP
Works: Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Alterations to sixth-floor flat, including installation of a louvred grille and replacement of casement sash windows to lightwell.
As published by the council, reference 26/00525/FULL
Application record
- Reference
- 26/00525/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 29 Jan 2026
- Validated
- 29 Jan 2026
- Decided
- 10 Apr 2026
- Ward
- St James's
- Decision by
- Delegated Decision
- Postcode
- SW1A 2EP
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2026: 2 approved, 0 refused.
-
26/00526/LBC Granted
Flat 146 4 Whitehall Court London SW1A 2EP
Alterations to sixth-floor flat, including installation of an internal air-conditioning condenser with a louvred grille to lightwell, replacement of casement sash windows to lightwell, and internal alterations.
Timeline
Dates from the published record
-
29 Jan 2026
Received by Westminster
-
10 Apr 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Bonnystreet (Town) Planning Limited Agent, a planning consultancy
17 applications on PlanIndex · across 9 councils · 73% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
30 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this grant of permission means
Westminster granted permission on 10 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
Flat 146 4 Whitehall Court London SW1A 2EP
Alterations to sixth-floor flat, including installation of an internal air-conditioning condenser with a louvred grille to lightwell, replacement of casement sash windows to lightwell, and internal alterations.
Granted Heritage and listed buildings Windows or glazing 26 docs -
Flat 116 4 Whitehall Court London SW1A 2EP
90% historically approved · decision due ~5 Jun
Approval of photos of new fireplace, approval of section drawings of the new floor build up, pursuant to condition 3 and 4 of Listed Building Consent dated 11 February 2026 (RN 25/07778/LBC)
Awaiting decision Conditions 4 docs -
Flat 71 3 Whitehall Court London SW1A 2EL
Internal alterations and refurbishment of existing two-bedroom flat to create one-bedroom flat with larger reception room.
Granted Heritage and listed buildings 21 docs -
Flat 71 3 Whitehall Court London SW1A 2EL
Alteration and refurbishment of existing two-bedroom flat to create one-bedroom flat.
Granted Lawful development 7 docs -
Flat 85 3 Whitehall Court London SW1A 2EL
86% historically approved · decision due ~27 Aug
Confirmation of the lawful implementation of planning permission dated 15 August 2017 (17/03984/FULL and 17/03985/LBC) has commenced before the expiry of the three year time period and may, therefore, lawfully be carried out and completed.
Awaiting decision Lawful development 1 doc -
Flat 63 3 Whitehall Court London SW1A 2EL
90% historically approved · decision due ~20 May
Internal alterations, including replacement of doors.
Awaiting decision Heritage and listed buildings 8 docs
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