Planning application
2 Manchester Square London W1U 3PA
Works: Extension Loft or dormer Windows or glazing
Relates to 25/07163/FULL
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Proposed infill of rear lightwell with walk-on, fire rated rooflights. Removal of the existing metal grill covering the lightwell; Infilling the lightwell at ground floor level to create an internal space; Installation of walk-on rooflights flush with the surrounding deck to allow daylight into the lower ground floor; Associated internal works to integrate the new structure, including provision for mechanical ventilation where required. New air handling unit to service rear room which has now become internal. Extended ventilation to service void under the suspended timber floor; Replacement of existing lead roof section on the ground floor, on a small corner adjacent to the bay window; Additional insulation to the rear lightwell floor slab, as this space will become internal; Revised floor build-up to the lower ground floor, rear extension room following discovery of the gridded masonry structure below the existing concrete slab.
As published by the council, reference 25/07164/LBC
Application record
- Reference
- 25/07164/LBC
- Type
- Listed Building Consent Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 3 Oct 2025
- Validated
- 16 Oct 2025
- Decided
- 10 Mar 2026
- Ward
- Marylebone
- Decision by
- Delegated Decision
- Postcode
- W1U 3PA
Site history
Applications at this address on the Westminster register
This site has had 12 applications since 2003: 10 approved, 0 refused.
-
25/07163/FULL Granted
2 Manchester Square London W1U 3PA
Proposed infill of rear lightwell with walk-on, fire rated rooflights. Removal of the existing metal grill covering the lightwell; Infilling the lightwell at ground floor level to create an internal space; Installation of walk-on rooflights flush with the surrounding deck to allow daylight into the lower ground floor; Associated internal works to integrate the new structure, including provision for mechanical ventilation where required. New air handling unit to service rear room which has now become internal. Extended ventilation to service void under the suspended timber floor; Replacement of existing lead roof section on the ground floor, on a small corner adjacent to the bay window; Additional insulation to the rear lightwell floor slab, as this space will become internal; Revised floor build-up to the lower ground floor, rear extension room following discovery of the gridded masonry structure below the existing concrete slab.
-
25/06335/LBC Granted
2 Manchester Square London W1U 3PA
Removal of one rooflight in the main roof and installation of one apex rooflight in the main roof to replace the existing rooflight.
-
25/06334/FULL Granted
2 Manchester Square London W1U 3PA
Removal of one rooflight in the main roof and installation of one apex rooflight in the main roof to replace the existing rooflight.
-
25/01094/ADLBC Awaiting decision
2 Manchester Square London W1U 3PA
Detailed information of the new rooflights (detailed plans, elevations and sections at 1:20, plus finishes schedule, and manufacturer's product details as applicable) pursuant to Condition 5 (A) of listed building dated 28th November 2024 (RN:23/05939/LBC)
-
25/01102/ADLBC Granted
2 Manchester Square London W1U 3PA
Detailed information of works to preserve and/or record any historic flooring layers discovered during the excavation of the existing basement floor (a detailed Conservation Method Statement, to include a detailed photographic and written analysis of what is found, and detailed existing and proposed floor build-up sections at 1:10) pursuant to Condition 5 (D) of listed building dated 28th November 2024 (RN:23/05939/LBC)
-
25/01101/ADLBC Awaiting decision
2 Manchester Square London W1U 3PA
Detailed information of the extent of replacement and repaired floors and ceilings, including floorboards, plasterwork and underlying timber structure (a detailed Conservation Method Statement, to incorporate detailed marked-up floor and reflected ceiling plans at 1:20) pursuant to Condition 5(B) of listed building dated 28th November 2023 (RN: 23/05939/LBC)
-
06/00993/AD7 Granted
2 Manchester Square London W1U 3PA
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.
-
05/05999/AD7 Granted
2 Manchester Square London W1U 3PA
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6m x 0.45m.
-
05/00300/AD7 Granted
2 Manchester Square London W1U 3PA
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.
-
04/05270/AD7 Granted
2 Manchester Square London W1U 3PA
Display for a temporary period of six months of a non-illuminated 'to let' board attached to the railings in front of the building at street level and measuring 0.6 x 0.45m.
Timeline
Dates from the published record
-
3 Oct 2025
Received by Westminster
-
16 Oct 2025
Validated
Checked as complete and ready for consideration.
-
10 Mar 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
-
25/07163/FULL Granted
2 Manchester Square London W1U 3PA
Proposed infill of rear lightwell with walk-on, fire rated rooflights. Removal of the existing metal grill covering the lightwell; Infilling the lightwell at ground floor level to create an internal space; Installation of walk-on rooflights flush with the surrounding deck to allow daylight into the lower ground floor; Associated internal works to integrate the new structure, including provision for mechanical ventilation where required. New air handling unit to service rear room which has now become internal. Extended ventilation to service void under the suspended timber floor; Replacement of existing lead roof section on the ground floor, on a small corner adjacent to the bay window; Additional insulation to the rear lightwell floor slab, as this space will become internal; Revised floor build-up to the lower ground floor, rear extension room following discovery of the gridded masonry structure below the existing concrete slab.
1 later application on the register refers to this one:
-
25/07163/FULL Granted
2 Manchester Square London W1U 3PA
Proposed infill of rear lightwell with walk-on, fire rated rooflights. Removal of the existing metal grill covering the lightwell; Infilling the lightwell at ground floor level to create an internal space; Installation of walk-on rooflights flush with the surrounding deck to allow daylight into the lower ground floor; Associated internal works to integrate the new structure, including provision for mechanical ventilation where required. New air handling unit to service rear room which has now become internal. Extended ventilation to service void under the suspended timber floor; Replacement of existing lead roof section on the ground floor, on a small corner adjacent to the bay window; Additional insulation to the rear lightwell floor slab, as this space will become internal; Revised floor build-up to the lower ground floor, rear extension room following discovery of the gridded masonry structure below the existing concrete slab.
Who's behind it
Company information only, from the register and Companies House
Garnett Architecture LLP Agent, an architecture practice registered in London
Active · incorporated 2003 · London
21 applications on PlanIndex · 100% 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
34 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 10 March 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
-
2 Manchester Square London W1U 3PA
Proposed infill of rear lightwell with walk-on, fire rated rooflights. Removal of the existing metal grill covering the lightwell; Infilling the lightwell at ground floor level to create an internal space; Installation of walk-on rooflights flush with the surrounding deck to allow daylight into the lower ground floor; Associated internal works to integrate the new structure, including provision for mechanical ventilation where required. New air handling unit to service rear room which has now become internal. Extended ventilation to service void under the suspended timber floor; Replacement of existing lead roof section on the ground floor, on a small corner adjacent to the bay window; Additional insulation to the rear lightwell floor slab, as this space will become internal; Revised floor build-up to the lower ground floor, rear extension room following discovery of the gridded masonry structure below the existing concrete slab.
Granted Full applications Extension Loft or dormer +1 40 docs -
2 Manchester Square London W1U 3PA
Removal of one rooflight in the main roof and installation of one apex rooflight in the main roof to replace the existing rooflight.
Granted Heritage and listed buildings Loft or dormer 27 docs -
2 Manchester Square London W1U 3PA
Removal of one rooflight in the main roof and installation of one apex rooflight in the main roof to replace the existing rooflight.
Granted Full applications Loft or dormer 31 docs -
2 Manchester Square London W1U 3PA
90% historically approved · decision due ~14 Apr
Detailed information of the new rooflights (detailed plans, elevations and sections at 1:20, plus finishes schedule, and manufacturer's product details as applicable) pursuant to Condition 5 (A) of listed building dated 28th November 2024 (RN:23/05939/LBC)
Awaiting decision Conditions Loft or dormer 12 docs -
2 Manchester Square London W1U 3PA
Detailed information of works to preserve and/or record any historic flooring layers discovered during the excavation of the existing basement floor (a detailed Conservation Method Statement, to include a detailed photographic and written analysis of what is found, and detailed existing and proposed floor build-up sections at 1:10) pursuant to Condition 5 (D) of listed building dated 28th November 2024 (RN:23/05939/LBC)
Granted Conditions 15 docs -
2 Manchester Square London W1U 3PA
90% historically approved · decision due ~14 Apr
Detailed information of the extent of replacement and repaired floors and ceilings, including floorboards, plasterwork and underlying timber structure (a detailed Conservation Method Statement, to incorporate detailed marked-up floor and reflected ceiling plans at 1:20) pursuant to Condition 5(B) of listed building dated 28th November 2023 (RN: 23/05939/LBC)
Awaiting decision Conditions 61 docs
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