Planning application
26C Clarendon Gardens London W9 1AZ
Works: Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).
As published by the council, reference 26/00673/ADLBC
Application record
- Reference
- 26/00673/ADLBC
- Type
- Approval of Details (ADLBC)
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 21 Nov 2025
- Validated
- 21 Nov 2025
- Decided
- 18 Feb 2026
- Ward
- Little Venice
- Decision by
- Delegated Decision
- Postcode
- W9 1AZ
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2025: 1 approved, 1 refused.
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25/06617/ADLBC Refused
26C Clarendon Gardens London W9 1AZ
Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).
Timeline
Dates from the published record
-
21 Nov 2025
Received by Westminster
-
18 Feb 2026
Decision issued: Application Permitted
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Of Architecture Ltd Agent, an architecture practice registered in London
Active · incorporated 2020 · London
6 applications on PlanIndex · across 4 councils
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
7 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 18 February 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 condition discharge and variation applications
This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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26C Clarendon Gardens London W9 1AZ
Detailed drawings showing the revision to the window scheme including details on retaining and refurbishing sash boxes to all windows, omitting reglazing of two rear original windows and joinery profiles to reflect the original lamb's tongue bars, pursuant to Condition 3 of Listed Building Consent dated 16 April 2025 (RN: 24/03615/LBC).
Refused Conditions Windows or glazing 9 docs -
24 Clarendon Gardens London W9 1AZ
Detailed drawings including sections, and method statements where applicable; of the railings, balconies, gate showing traditional detail of hinges- each type showing location and giving key details with adjacent fabric, details of new rear infill extension including new external doors, and roof glazing showing details of materiality and key junctions with existing fabric, external staircase, ladders reflected ceiling plans showing light fittings etc and coordinated integrated services, indicating new or retained existing ceiling constructions, a method statement further to investigative works for removal of modern ceilings and reinstatement of historic ceilings if applicable, must be included, details of existing and proposed floor build ups further to investigative works, cross referred on plans, details of sample photos showing materiality and technical specifications of any new glazing for the windows and details of sample photographs and specifications of the paving material at rear garden, infill rear extension including glazing, frames, staircase, landing pursuant to condition 4 (A), (B), (C), (G), (I), 5 & 7 of planning permission dated 12th June 2025 (RN:25/00027/FULL)
Granted Full applications Extension Windows or glazing 26 docs -
24 Clarendon Gardens London W9 1AZ
Details of railings, balconies, gate showing traditional detail of hinges, details of new rear infill extension including external doors, and roof glazing showing details of materiality and key junctions, external staircase, ladders, reflected ceiling plans showing light fittings , details of existing and proposed floor build ups, glazing samples, photographs and specifications of the paving material and detailed condition surveys pursuant to Conditions 5 (A,B,C,G and I), 6, 9 and 10 of Listed Building Consent dated 12 June 2025 (RN25/00028/LBC)
Granted Conditions Extension Windows or glazing 30 docs -
Upper Maisonette 22 Clarendon Gardens London W9 1AZ
90% historically approved · decision due ~18 Nov
Internal alterations to second floor.
Decided Heritage and listed buildings -
34 Clarendon Gardens London W9 1AZ
100% historically approved · decision due ~23 Sep
1 x Sycamore (T1, rear): Reduce the tree's crown by up to 4 metres, trimming back to the most recent and previous reduction points. 1 x Golden False Acacia (T2, rear): Trim the crown lightly by up to 1.5 metres and shape it sensitively.
Decided Trees -
28 Clarendon Gardens London W9 1AZ
90% historically approved · decision due ~21 Jan
Amalgamation of three residential units to provide one, one bedroom unit and one, three bedroom unit (Class C3); Demolition of existing conservatory and erection of glazed extension to rear, associated plant; renewing, replacement and relocation of windows and associated works. (Linked to 25/08635/FULL)
Awaiting decision Heritage and listed buildings Extension Demolition +1 20 docs
Other condition discharge and variation applications
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26/04860/ADLBC Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Details of external and internal signage strategy pursuant to Condition 7(E) of listed building consent dated 12th February 2021 (RN: 19/07816/LBC)
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26/04843/ADLBC Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Detailed design and specification of new blinds to NZH based on mock-up trials on-site pursuant to Condition 6(m) of listed building consent dated 12th February 2021 (19/07816/LBC).
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26/04850/ADLBC Awaiting decision
17 Belgrave Square London SW1X 8PG
Detailed drawings of garage doors, roof lantern and any new lighting and flooring in the principal rooms pursuant to condition 6 (iii) (iv) (v) of listed building 18th August 2025 (RN:25/03417/LBC)
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25/07120/ADLBC Granted
72 - 74 Lancaster Gate London W2 3NH
Details of new and altered doors and door architraves, including external faces of lifts (detailed elevations and sections at 1:10) pursuant to Condition 3 (A) of Listed Building Consent dated 14 December 2023 (RN: 23/00772/LBC) (Linked app: 25/07088/ADFULL)
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26/04781/ADLBC Awaiting decision
33A Dean Street London W1D 4PP
Detailed drawings (1:5 and 1:20) of the Floor build up at all levels, fireplaces, doors, details of the materials (specification sheet) placed onto the flagstones at basement level, detailed methodology is required to show how any historic floorboards would be carefully lifted up and reinstated and a detailed methodology is required to show how the historic panelling will be removed, stores and reinstated pursuant to condition 3, 4, 5, 6 of listed building dated 1st August 2025 (RN:25/01948/LBC)