Planning application
79 Eaton Terrace London SW1W 8TN
Works: Extension Loft or dormer Windows or glazing
Relates to 25/05690/LBC, 26/03720/ADFULL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Detailed drawings of a) new windows and doors to the rear lower ground and ground floor extensions; b) new rear dormer windows; c) new staircase; d) new cornicing and skirting; and e) internal doors pursuant to Condition 6 of listed building consent dated 23 March 2026 (RN: 25/05690/LBC) [Linked to 26/03720/ADFULL]
As published by the council, reference 26/03771/ADLBC
Application record
- Reference
- 26/03771/ADLBC
- Type
- Approval of Details (ADLBC)
- Status
- Pending
- Received
- 8 Jun 2026
- Validated
- 9 Jul 2026
- Ward
- Knightsbridge & Belgravia
- Postcode
- SW1W 8TN
Site history
Applications at this address on the Westminster register
This site has had 7 applications since 2025: 2 approved, 3 refused.
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26/03720/ADFULL Decided
79 Eaton Terrace London SW1W 8TN
Details of sample panel of brickwork; detailed drawings of new windows and doors to the rear lower ground and ground floor extensions; and detailed drawings of a hard and soft landscaping scheme pursuant to Conditions 4, 7(a) and 15 of planning permission dated 23 March 2026 (RN: 25/05689/FULL).
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26/00220/ADFULL Refused
79 Eaton Terrace London SW1W 8TN
Sample panel of brickwork, built on site, which shows the colour, texture, face bond and pointing pursuant to condition 4 of planning permission dated 8th April 2025 (RN 24/08694/FULL)
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26/00045/ADFULL Refused
79 Eaton Terrace London SW1W 8TN
Details of sample panel of brickwork held on site pursuant to condition 4 of planning permission dated 8th April 2025 (RN: 24/08694/FULL). Linked to 26/01343/ADLBC.
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26/01343/ADLBC Refused
79 Eaton Terrace London SW1W 8TN
Details of sample panel of brickwork held on site pursuant to condition 3 of listed building consent dated 8th April 2025 (RN: 24/08695/LBC). Linked with 26/00045/ADFULL
-
25/05689/FULL Granted
79 Eaton Terrace London SW1W 8TN
Erection of lower ground floor and ground floor rear extensions. Installation of air conditioning plant within two acoustic enclosures in rear garden and associated landscaping works. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell, alterations to front vaults and installation of a rainwater downpipe to the front elevation.
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25/05690/LBC Granted
79 Eaton Terrace London SW1W 8TN
Erection of lower ground floor and ground floor rear extensions. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell and installation of a rainwater downpipe to the front elevation. Internal alterations including lowering of floor of front vaults, alterations to stairs including stair winders in some levels; lowering of floor levels in lower ground floor rear room, first and second floors of closet wing, and installation of internal mechanical services.
Timeline
Dates from the published record
-
8 Jun 2026
Received by Westminster
-
9 Jul 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 3 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 65 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
-
25/05690/LBC Granted
79 Eaton Terrace London SW1W 8TN
Erection of lower ground floor and ground floor rear extensions. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell and installation of a rainwater downpipe to the front elevation. Internal alterations including lowering of floor of front vaults, alterations to stairs including stair winders in some levels; lowering of floor levels in lower ground floor rear room, first and second floors of closet wing, and installation of internal mechanical services.
-
26/03720/ADFULL Decided
79 Eaton Terrace London SW1W 8TN
Details of sample panel of brickwork; detailed drawings of new windows and doors to the rear lower ground and ground floor extensions; and detailed drawings of a hard and soft landscaping scheme pursuant to Conditions 4, 7(a) and 15 of planning permission dated 23 March 2026 (RN: 25/05689/FULL).
1 later application on the register refers to this one:
-
26/03720/ADFULL Decided
79 Eaton Terrace London SW1W 8TN
Details of sample panel of brickwork; detailed drawings of new windows and doors to the rear lower ground and ground floor extensions; and detailed drawings of a hard and soft landscaping scheme pursuant to Conditions 4, 7(a) and 15 of planning permission dated 23 March 2026 (RN: 25/05689/FULL).
Who's behind it
Company information only, from the register and Companies House
Clark Architecture and Design ltd. Agent, an architecture practice registered in London
Active · incorporated 2017 · London
17 applications on PlanIndex · across 4 councils · 79% 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
18 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.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided condition discharge and variation applications in a median of 42 days. More in our guide to how long planning decisions take.
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
-
79 Eaton Terrace London SW1W 8TN
Sample panel of brickwork, built on site, which shows the colour, texture, face bond and pointing pursuant to condition 4 of planning permission dated 8th April 2025 (RN 24/08694/FULL)
Refused Full applications 11 docs -
79 Eaton Terrace London SW1W 8TN
Details of sample panel of brickwork held on site pursuant to condition 4 of planning permission dated 8th April 2025 (RN: 24/08694/FULL). Linked to 26/01343/ADLBC.
Refused Full applications 9 docs -
79 Eaton Terrace London SW1W 8TN
Details of sample panel of brickwork held on site pursuant to condition 3 of listed building consent dated 8th April 2025 (RN: 24/08695/LBC). Linked with 26/00045/ADFULL
Refused Conditions 9 docs -
79 Eaton Terrace London SW1W 8TN
89% historically approved · decision due ~3 Sep
Details of sample panel of brickwork; detailed drawings of new windows and doors to the rear lower ground and ground floor extensions; and detailed drawings of a hard and soft landscaping scheme pursuant to Conditions 4, 7(a) and 15 of planning permission dated 23 March 2026 (RN: 25/05689/FULL).
Decided Extension Windows or glazing 25 docs -
79 Eaton Terrace London SW1W 8TN
Erection of lower ground floor and ground floor rear extensions. Installation of air conditioning plant within two acoustic enclosures in rear garden and associated landscaping works. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell, alterations to front vaults and installation of a rainwater downpipe to the front elevation.
Granted Full applications Extension Windows or glazing 54 docs -
79 Eaton Terrace London SW1W 8TN
Erection of lower ground floor and ground floor rear extensions. Alterations to windows on the rear elevation. Replacement of staircase and railings to front lightwell and installation of a rainwater downpipe to the front elevation. Internal alterations including lowering of floor of front vaults, alterations to stairs including stair winders in some levels; lowering of floor levels in lower ground floor rear room, first and second floors of closet wing, and installation of internal mechanical services.
Granted Heritage and listed buildings Extension Windows or glazing 21 docs
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26/04860/ADLBC Granted
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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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St James's Park The Mall London SW1A 1AA
Details of method statement for re-carving works pursuant to condition 3(i) of listed building consent dated 16 July 2026 (RN: 26/03399/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)