Basement And Ground Floor 9 Mount Street London W1K 3NG Data via plota.co.uk

26/04801/ADLBC - Approval of Details (ADLBC) Approved

Proposal

Details at 1:1 of new grills, sample photographs along with materiality, Details at 1:10 of new stair balustrades, Details of lighting demonstrating where on drawings ; Details of new modern flooring and joinery showing their relationship in conjunction with any existing historic fabric, demonstrating that their installation would not cause harm, pursuant to the partial discharge of condition 4 (Parts A,B,C and E only) of listed building consent dated 28th May 2026(RN: ). Data via plota.co.uk

View original council record ↗

Application progress

Received
17 Jul 2026
Approved
14 Aug 2026

Approved on 14 Aug 2026 · Delegated Decision · Last checked 21 Aug 2026

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Important details

Application type
Approval of Details (ADLBC)
Postcode
W1K 3NG
Received
17 Jul 2026
Validated
17 Jul 2026
Ward
West End
Case officer
Show
Target decision
11 Sept 2026
Decision
Application Permitted
Decision date
14 Aug 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Knight Frank

Public comments

No public comments yet.

Last counted 21 Aug 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15092745
Env. assessment
No
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