Planning application
Campden Mansions, 9 Kensington Mall, London, W8 4DU
Works: Extension Loft or dormer
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Construction of mansard roof extension to create new flat (Use Class C3)
As published by the council, reference PP/26/01787
Application record
- Reference
- PP/26/01787
- Type
- Planning Permission
- Status
- Pre-Determination Stage
- Received
- 16 Mar 2026
- Ward
- Campden
- Parish
- 03
- Postcode
- W8 4DU
Timeline
Dates from the published record
-
16 Mar 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 11 May 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
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 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 0.3 miles
-
8 Rabbit Row, London, W8 4DX
Alterations to fenestration, installation of 10no solar PV panels to main flat roof and installation of 2no walk-on glazed rooflights to single storey flat roof.
Granted Full applications Loft or dormer Windows or glazing 35 docsSmall domestic -
10 Strathmore Gardens, London, W8 4RZ
Variation of Condition 2 (Approved drawings) of PP/24/08551 (External alterations; reinstatement of first floor rear terraces; alterations to fenestration - rearrangement of windows at rear extension; excavation at lower ground floor to form a swimming pool with associated plant at first floor and roof levels; and installation of liftshaft housing for internal lift to serve all levels) to allow for amendments to door opening, terrace levels and lift position, amendment/removal of skylights, and internal reconfigurations.
Granted Full applications Extension Windows or glazing 15 docs -
10 Strathmore Gardens, London, W8 4RZ
Details required by Condition 9 (CTMP) of planning permission ref. PP/24/08551 dated 28th February 2025 (External alterations; reinstatement of first floor rear terraces; alterations to fenestration - rearrangement of windows at rear extension; excavation at lower ground floor to form a swimming pool with associated plant at first floor and roof levels; and installation of lift shaft housing for internal lift to serve all levels).
Granted Conditions Extension Windows or glazing 8 docs -
57 Palace Gardens Terrace, London, W8 4RU
Rearrangement of front and rear fenestration.
Granted Full applications Windows or glazing 14 docs -
Flat 2, 55A Palace Gardens Terrace, London, W8 4RU
Construction of rear infill extension at first floor level. Replacement of casement window on closet wing with traditional painted timber sash window.
Refused Full applications Extension Windows or glazing 35 docs -
57 Palace Gardens Terrace, London, W8 4RU
FELL 1 x Common Lime (T1) at front of property.
Refused 9 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.
-
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.
-
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.
-
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.