Planning application
1 Colbeck Mews, London, SW7 4LX
Works: Loft or dormer Windows or glazing Domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Conversion of existing single dwellinghouse into two self-contained dwellinghouses, including excavation of a basement level, internal and external refurbishment works, alterations to front elevation fenestration, and installation of rooflights
As published by the council, reference PP/26/01950
Application record
- Reference
- PP/26/01950
- Type
- Planning Permission
- Status
- Pre-Determination Stage
- Received
- 20 Apr 2026
- Ward
- Courtfield
- Parish
- 06
- Postcode
- SW7 4LX
Timeline
Dates from the published record
-
20 Apr 2026
Received by Kensington and Chelsea
-
20 Jul 2026
Added to PlanIndex
-
1 Aug 2026
Status changed to Pre-Determination Stage
Previously Validated and Registered.
-
Decision
Awaiting decision
Decision expected by 15 June 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Kensington and Chelsea took a median of 84 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
58 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.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Kensington and Chelsea for determination, against a statutory target of eight weeks. Over the last year Kensington and Chelsea decided full applications in a median of 111 days. More in our guide to how long planning decisions take.
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 500 metres
-
4 Colbeck Mews, London, SW7 4LX
Details required by condition 6 (CTMP) of planning permission PP/25/00848 (Excavation and construction of a basement beneath existing ground floor and installation of a dormer window with skylights as part of an extension in loft area)
Granted Conditions Extension Loft or dormer +1 8 docs -
9 Colbeck Mews, London, SW7 4LX
Alterations and replacement to windows and doors and installation of new rooflights (Certificate of Lawful Proposed Use/Development)
Granted Lawful development Loft or dormer Windows or glazing 7 docs -
9 Colbeck Mews, London, SW7 4LX
Variation of condition 2 (compliance with approved drawings) of planning permission 23/08401, to allow the introduction of top lights above the garage and main door; and the replacement of drawings 9CM-E1b and 9CM-E1b Rev 1 with drawing no. 9CM-E1b Rev 2.
Granted Full applications 12 docs -
5-7 Courtfield Mews, London, SW5 0NH
Roof works including installation of new mansard roof and raising of part front and side elevation parapet wall.
Granted Full applications Loft or dormer 23 docs -
3 Courtfield Mews, London, SW5 0NH
Proposed terrace and roof extension and alterations at rear 2nd floor level including replacement of window with door and installation of railing. Application pursuant to PP/23/04905
Granted Full applications Extension Windows or glazing 24 docs -
5-7 Courtfield Mews, London, SW5 0NH
Non-material amendment to planning permission PP/23/00182 (Alterations and enlargement of second floor front dormer and extension of dormer to rear of for installation of a passenger lift; formation of 2 roof lights to rear flat roof areas and miscellaneous alterations internally) for approved flat glass roof light to rear is to be replaced by new Velux type windows within a smaller sloping roof of approx 12 degrees slope.
Refused Amendments Extension Loft or dormer +1 5 docs
Other full applications
In Kensington and Chelsea
-
PP/18/01985 Withdrawn
Flat 3, 24 Cornwall Gardens, London, SW7 4AW
Works to second floor flat including erection of rear extension, creation of external roof terrace areas above and to rear of said extension (with perimeter metal railings), together with internal alterations including removal of internal wall between kitchen and living room, and other refurbishment works
-
PP/26/03176 Granted
12 Shawfield Street, London, SW3 4BD
Replacement windows, new rooflight and replacement lower ground rear rooflights.
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PP/26/03048 Granted
24 Charles II Place, London, SW3 4NG
Removal of existing conservatory structure. Construction of a single-storey rear extension at lower ground floor level. Installation of a contemporary three-panel sliding glazed door opening onto rear garden. Internal reconfiguration at lower ground floor level.
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PP/26/03042 Granted
Flat 7, 7 Egerton Place, London, SW3 2EF
Installation of air conditioning system including external condenser unit housed within enclosure at roof level. Replacement of roof lantern, rooflight and roof access hatch with flat glazed access hatch and rooflights. Replacement of two rear elevation uPVC windows with timber-framed slimline double-glazed sliding sash windows; and associated external alterations.
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PP/26/02897 Withdrawn
46 Evelyn Gardens, London, SW7 3BH
Positioning of two new external heat pump condensers within two separate acoustic enclosures, one on main roof of house and other on rear forth floor roof terrace.