Planning application
6 Eccleston Square London SW1V 1NP
Works: Extension Loft or dormer Roofing Demolition Windows or glazing
Relates to 25/07422/FULL
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Full refurbishment of Flat 6 involving the demolition of the existing modern mansard roof and dormers at 4th level, and of the terrace above the 4th Floor and creation of a new roof with a sunk terrace, recessed from both elevations, in the middle section of the roof, insertion of a hinged sky door fit in the roof and creation of an internal stair for accessing the roof terrace, layout improvement of the 4th floor with minor alterations of the bedrooms configuration and the enlargement of existing bathroom, with the provision of a skylight about the bath/ shower area, vertical extension of the existing cantilevered rear extension, with the creation of a new rear extension volume above, partially covering the existing rear extension, housing a shower area and improvement of existing WC on the landing in between the 3rd and 4th floors; layout optimization of the 3rd floor and renewal of the existing modern double-glazing windows with new like to like timber, slim line double glazed conservation windows and installation of ASHP heat pump.
As published by the council, reference 25/07423/LBC
Application record
- Reference
- 25/07423/LBC
- Type
- Listed Building Consent Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 14 Oct 2025
- Validated
- 30 Oct 2025
- Decided
- 23 Apr 2026
- Ward
- Pimlico North
- Decision by
- Delegated Decision
- Postcode
- SW1V 1NP
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2025: 2 approved, 0 refused.
-
25/07422/FULL Granted
6 Eccleston Square London SW1V 1NP
Full refurbishment of Flat 6 involving the demolition of the existing modern mansard roof and dormers at 4th level; and of the terrace above the 4th Floor; creation of a new roof terrace; insertion of a hinged sky door fit at the roof; installation of a skylight to the new extension on the 4th Floor; creation of a new rear extension volume above the existing rear extension cantilevered to house a shower area; replacement of windows and; installation of ASHP heat pump on the roof.
Timeline
Dates from the published record
-
14 Oct 2025
Received by Westminster
-
30 Oct 2025
Validated
Checked as complete and ready for consideration.
-
23 Apr 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
25/07422/FULL Granted
6 Eccleston Square London SW1V 1NP
Full refurbishment of Flat 6 involving the demolition of the existing modern mansard roof and dormers at 4th level; and of the terrace above the 4th Floor; creation of a new roof terrace; insertion of a hinged sky door fit at the roof; installation of a skylight to the new extension on the 4th Floor; creation of a new rear extension volume above the existing rear extension cantilevered to house a shower area; replacement of windows and; installation of ASHP heat pump on the roof.
1 later application on the register refers to this one:
-
25/07422/FULL Granted
6 Eccleston Square London SW1V 1NP
Full refurbishment of Flat 6 involving the demolition of the existing modern mansard roof and dormers at 4th level; and of the terrace above the 4th Floor; creation of a new roof terrace; insertion of a hinged sky door fit at the roof; installation of a skylight to the new extension on the 4th Floor; creation of a new rear extension volume above the existing rear extension cantilevered to house a shower area; replacement of windows and; installation of ASHP heat pump on the roof.
Documents
Plans, drawings, consultee responses and the officer's report
39 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 this grant of permission means
Westminster granted permission on 23 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 heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
6 Eccleston Square London SW1V 1NP
Full refurbishment of Flat 6 involving the demolition of the existing modern mansard roof and dormers at 4th level; and of the terrace above the 4th Floor; creation of a new roof terrace; insertion of a hinged sky door fit at the roof; installation of a skylight to the new extension on the 4th Floor; creation of a new rear extension volume above the existing rear extension cantilevered to house a shower area; replacement of windows and; installation of ASHP heat pump on the roof.
Granted Full applications Extension Loft or dormer +3 49 docs -
1D Eccleston Square London SW1V 1NP
90% historically approved · decision due ~21 May
Installation of four replacement timber sash windows within mansard roof storey.
Awaiting decision Heritage and listed buildings Loft or dormer Windows or glazing 16 docs -
9 Eccleston Square London SW1V 1NP
89% historically approved · decision due ~25 May
Details of stucco repair method statement pursuant to condition 4 of listed building consent dated 7th October 2025 (RN: 25/06030/LBC).
Awaiting decision Conditions 4 docs -
Flat 2 5 Eccleston Square London SW1V 1NP
90% historically approved · decision due ~2 Apr
Replacement of roof and rooflights to rear closet wing at first floor level with associated raising of existing parapet.
Awaiting decision Heritage and listed buildings Loft or dormer 17 docs -
Flat 2 5 Eccleston Square London SW1V 1NP
88% historically approved · decision due ~2 Apr
Replacement of roof and rooflights to rear closet wing at first floor level with associated raising of existing parapet.
Awaiting decision Full applications Loft or dormer 21 docs -
1D Eccleston Square London SW1V 1NP
88% historically approved · decision due ~21 May
Installation of four replacement timber sash windows within mansard roof storey.
Awaiting decision Full applications Loft or dormer Windows or glazing 15 docs
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