15 Grosvenor Hill London W1K 3QA Data via plota.co.uk

26/05547/CLOPUD - Certificate of Lawfulness (proposed) Pending

Proposal

External fire remediation works to an existing four-storey residential apartment building. Works comprise of: . The removal and replacement of the existing external wall cladding system with a matching system of identical appearance, profile, colour and finish, upgraded to achieve A2-s1,d0 fire performance standards. . Replacement of combustible insulation where necessary . Replacement and introduction of cavity barriers, fire-stopping measures and associated supporting components as required to comply with current fire safety requirements. The replacement materials will replicate the existing appearance of the building and will not result in a material alteration to the external appearance. Minor associated works are proposed to the rear elevation only, with no changes to the use of the building, site access arrangements, highways, drainage, hardstanding or site layout. The building will remain in use as residential flats throughout and no increase in floorspace, building height or residential accommodation is proposed. Data via plota.co.uk

View original council record ↗

Application progress

Received
14 Aug 2026
Decision
Awaiting decision

This application is under consideration - no decision has been issued yet.

Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Householder decisions

Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.

One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Westminster decision performance
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #201 of 296
81%
Householder approved
Below avg (90%) #277 of 296
44%
Decided in 8 weeks
Below avg (63%) #258 of 296
28%
Extended time limit
Below avg (41%) #46 of 296
83%
Minor dwellings approved
12 decided (1-9 homes)
67%
Major dwellings approved
3 decided (10+ homes)
81%
Change of use approved
133 decided
4,602
Total decisions
648 refused in the year to March 2026