9A Grosvenor Square London W1K 5AE Data via plota.co.uk

26/05473/LBC - Listed Building Consent Application Pending
Extensions & alterationsListed buildings

Proposal

Installation of natural Portland Stone paving to two front entrances. (Linked to 26/06273/FULL) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
12 Aug 2026
✓
Validated
14 Sept 2026
Decision
Expected by 9 Nov 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision between 4 Nov 2026 and 13 Nov 2026, from Westminster's recent extensions. Comments are open until 28 Oct 2026.

Comment on this application ↗

Documents 10

Statements & assessments 1

PDF D&A STATEMENT Heritage Statement · 12 Aug 2026 View ↗

Plans & drawings 5

PDF LOCATION PLAN Location Plan · 12 Aug 2026 View ↗ PDF LOCATION PLAN Location Plan · 12 Aug 2026 View ↗ PDF EXISTING AND PROPOSED EXTERNAL PLANS Drawing · 12 Aug 2026 View ↗ PDF EXISTING AND RONT ELEVATIONS Drawing · 12 Aug 2026 View ↗ PDF DETAILS Drawing · 12 Aug 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 12 Aug 2026 View ↗

Other documents 3

PDF 2ND INVALID LETTER Background Papers · 15 Sept 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 14 Aug 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 14 Aug 2026 View ↗

All documents on the council site ↗

Associated applications 2

Site constraints 9

Grade II listed: 9, Grosvenor Square W1
List entry 1214440 · 0 m away · 25 more listed buildings within 150 m (1 Grade I, 5 Grade II*, 19 Grade II)
Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show the other 25 with distances
Historic England ↗
Mayfair conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
2 Article 4 directions
Article 4 Basement Development Permitted Rights Removed · Article 4 Direction Class E To C3 In Central Activities Zone. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Archaeological priority area: City of Westminster APA 2.5
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
Air quality management area: Westminster AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
Town centre: West End
A designated centre in the London Plan.
Shops, services and active frontages are protected in centres, and main town centre uses are steered here first.
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
Registered park or garden 53 m away: Grosvenor Square
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Also on the record
Inside the City of Westminster built-up area.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 24 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.

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Important details

Council
Westminster
Application type
Listed Building Consent Application
Postcode
W1K 5AE
Received
12 Aug 2026
Validated
14 Sept 2026
Ward
West End
Case officer
Show
Target decision
9 Nov 2026
Applicant
Show
Agent
Ward Williams

Decision outlook

Day 21 of the 56-day target. Westminster usually decides extensions by day 55.

Day 2135 days to the 56-day target
56%decided within 8 weeks
88%approved
1,673decided in the last year

Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

Last counted 1 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15153657
Comments by
28 Oct 2026
Site or press notice
7 Oct 2026
Env. assessment
No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025 Approved
Flat 3 81 Duke Street London W1K 5PE
Installation of two air conditioning condenser units at roof level and the installation o…
25/04908/LBC
2025
85 Duke Street London W1K 5PG
Alterations to an existing ground and lower ground floor retail unit to create two smalle…
25/06766/LBC
2025
85 Duke Street London W1K 5PG
Alterations to an existing ground and lower ground floor retail unit to create two smalle…
25/06765/FULL
2025
75 Duke Street London W1K 5PA
Internal alterations; installation of new shopfronts, plant equipment and ductwork. (Link…
25/06601/LBC
2025
75 Duke Street London W1K 5PA
Installation of new shopfronts; two condenser units and extract fan in rear basement ligh…
25/06600/FULL
2025
Flat 3 81 Duke Street London W1K 5PE
Installation of two air conditioning condenser units at roof level planting to be introdu…
25/04738/FULL
2025
Flat 3 81 Duke Street London W1K 5PE
Internal alterations to the existing guest bathroom and library to create a new bedroom w…
25/04596/LBC
2025 Refused
Flat 3 81 Duke Street London W1K 5PE
Installation of two AC condenser units on the roof.
25/02258/FULL
2025 Refused
Flat 3 81 Duke Street London W1K 5PE
Installation of two AC condenser units on the roof and the installation of a number of AC…
25/02259/LBC
2025
8 Grosvenor Square London W1K 5AE
Upgrading existing timber casement windows and French doors with like for like double gla…
25/00803/FULL
2025
8 Grosvenor Square London W1K 5AE
Upgrading existing timber casement windows and French doors with like for like double gla…
25/00804/LBC
2025
Flat 3 81 Duke Street London W1K 5PE
Internal alterations to the existing guest bathroom and library to create a new bedroom w…
25/00752/LBC
2025
17 Three Kings Yard London W1K 4JT
Variation of condition 1 of planning permission dated 12 February 2015 (RN:22/03900/FULL)…
25/00741/FULL
2025
18 - 20 Weighhouse Street London W1K 5LU
Display of four non-illuminated retractable awnings measuring 2.93m, 2.94m, 1.835m, and 2…
25/00670/ADV
2024
80 Duke Street London W1K 6JG
Variation of conditions 13 and 15 of planning permission dated 07 August 2020 (RN: 19/070…
24/09016/FULL
2024
18 - 20 Weighhouse Street London W1K 5LU
Variation of condition 5 of planning permission dated 22 December 2020 (RN 20/06676/FULL)…
24/07981/FULL
2024
69 Brook Street Mayfair London W1K 4ER
Installation of roof edge protection to the principal roof. (Linked to 24/05567/FULL)
24/05568/LBC
2024
69 Brook Street Mayfair London W1K 4ER
Installation of roof edge protection to the principal roof. (Linked to 24/05568/LBC)
24/05567/FULL
2024 Withdrawn
Ground Floor 80 Brook Street Mayfair London W1K 5EG
Replacement ceiling.
24/05163/LBC
2024 Approved
17 Three Kings Yard London W1K 4JT
Installation of four air conditioning condensers to the rear of the basement/ ground floo…
24/02132/FULL
2019 Approved
Flat 4 81 Duke Street London W1K 5PE
Internal refurbishment works.
19/03210/LBC
2019 Approved
8 Grosvenor Square London W1K 5AE
External alterations including chutes, lead hoppers and cast iron air bricks to south ele…
19/01100/FULL
2019 Approved
8 Grosvenor Square London W1K 5AE
External and internal alterations including chutes, lead hoppers and cast iron air bricks…
19/01103/LBC
2019 Approved
78 Brook Street Mayfair London W1K 5EF
Display for a temporary period of six months of a non-illuminated estate agents board att…
19/01051/AD7
2018 Approved
78 Brook Street Mayfair London W1K 5EF
Display for a temporary period of six months of a non-illuminated estate agents board att…
18/06881/AD7
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Other 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 statistics
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
Source: MHCLG planning statistics · See full council rankings