Planning application
25/07664/FULL
Flats 33 To 40 Leith Mansions Grantully Road London W9 1LQ
Proposal
Replacement of existing windows, including sash windows, to the front, side, and rear elevations with new timber sash and timber casement windows, all to be installed within the existing structural openings.
As published by the council, reference 25/07664/FULL
Timeline
Dates from the published record
-
22 Oct 2025
Received by Westminster
-
3 Nov 2025
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
-
07/03218/FULL Granted
Flats 50 To 59 Biddulph Mansions Elgin Avenue London W9 1HT
Creation of one bedroom flat at lower ground floor store rooms at rear of flats 50-59 and installation of new windows and doors.
-
10/04418/TCA Withdrawn
Biddulph Mansions Elgin Avenue London W9 1HT
Cherry tree to be removed and replanted.
-
26/04875/FULL Awaiting decision
100 Leith Mansions Grantully Road London W9 1LJ
Replacement of windows and door at rear first floor level.
-
26/00864/TCA Awaiting decision
7 Biddulph Road London W9 1JA
T1- Sycamore tree- crown reduction back to most recent pruning points (approximately 2.5m reduction).
-
25/09211/ADFULL Awaiting decision
12 Lauderdale Parade Lauderdale Road London W9 1LU
Details of waste storage; and air recirculation system pursuant to conditions 2 and 4 of planning permission dated 12 June 2020 (RN: 20/01011/FULL)
-
21/08784/TCA Granted
Flats 20 To 29 Biddulph Mansions Biddulph Road London W9 1HY
T1 Wild Cherry: crown reduce the height and spread of the tree by up to 3m. T3 Sycamore (Acer pseudoplatanus): crown reduce the height and spread of the tree by up to 2m.
Other full applications applications
In Westminster
-
26/04824/ADFULL 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 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).
-
26/04829/ADFULL Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)
-
26/04841/ADFULL Granted
29 Henstridge Place London NW8 6QD
Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).
-
26/04989/FULL Awaiting decision
1 Kildare Terrace London W2 5JT
Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.
-
26/04986/FULL Awaiting decision
Inver Court Inverness Terrace London W2 6JB
Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.