Flanders House 1A Cavendish Square London W1G 0PH Data via plota.co.uk

26/04900/LBC - Listed Building Consent Application Pending
Extensions & alterationsListed buildings

Proposal

Maintenance and repair works to the external elevations of the building including ironwork and windows. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
22 Jul 2026
Decision
Expected by 16 Sept 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 14 Sept 2026, from Westminster's recent extensions. The consultation period closed on 2 Sept 2026.

Documents 18

Statements & assessments 2

PDF DESIGN, ACCESS AND HERITAGE STATEMENT Design and Access Statement · 22 Jul 2026 View ↗ PDF HERITAGE STATEMENT_INCLUDED_IN_DESIGN AND ACCESS STATEMENT Heritage Statement · 22 Jul 2026 View ↗

Plans & drawings 9

PDF LOCATION PLAN Location Plan · 22 Jul 2026 View ↗ PDF EXISTING WEST ELEVATION Drawing · 22 Jul 2026 View ↗ PDF EXISTING SOUTH ELEVATION Drawing · 22 Jul 2026 View ↗ PDF EXISTING SOUTH ELEVATION Drawing · 22 Jul 2026 View ↗ PDF EXISTING EAST ELEVATION Drawing · 22 Jul 2026 View ↗ PDF PROPOSED WEST ELEVATION Drawing · 22 Jul 2026 View ↗ PDF PROPOSED SOUTH ELEVATION Drawing · 22 Jul 2026 View ↗ PDF PROPOSED SOUTH ELEVATION Drawing · 22 Jul 2026 View ↗ PDF PROPOSED EAST ELEVATION Drawing · 22 Jul 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 22 Jul 2026 View ↗

Other documents 6

PDF RECEIPT OF APPLICATION Other · 23 Jul 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 22 Jul 2026 View ↗ PDF METHODOLOGY FOR RENDER REPAIRS Background Papers · 22 Jul 2026 View ↗ PDF EXTERNAL MASONRY CONDITION INVESTIGATION Background Papers · 22 Jul 2026 View ↗ PDF IRONWORK CONDITION INVESTIGATION Background Papers · 22 Jul 2026 View ↗ PDF WINDOW CONDITION INVESTIGATION Background Papers · 22 Jul 2026 View ↗

All documents on the council site ↗

Site constraints 9

Grade II listed: 1 and 1a, Cavendish Square W1
List entry 1210035 · 15 m from the pin · 19 more listed buildings within 150 m (3 Grade II*, 16 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 19 with distances
Historic England ↗
Harley Street 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.
Also on the record
Inside the City of Westminster built-up area; Priority habitat 47 m away: Deciduous woodland.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 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
W1G 0PH
Received
22 Jul 2026
Validated
22 Jul 2026
Ward
West End
Case officer
Show
Target decision
16 Sept 2026
Agent
Graham Ford Architects

Decision outlook

Day 54, past Westminster's usual 53 days for extensions. 88% are decided within thirteen weeks, so most likely by 21 Oct 2026.

Day 542 days to the 56-day target
62%decided within 8 weeks
87%approved
930decided 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 12 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15043053
Comments by
2 Sept 2026
Site or press notice
12 Aug 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
14 Cavendish Square London W1G 9DB
Refurbishment of 14 Cavendish Square, including modest internal and external alterations…
25/07886/FULL
2025
14 Cavendish Square London W1G 9DB
Refurbishment of 14 Cavendish Square, including modest internal and external alterations…
25/07887/LBC
2025 Approved
23 Wigmore Place London W1U 2LZ
1 x London plane (T1, rear): Reduce height to previous most recent reduction points, reta…
25/06065/TCA
2025 Approved
13 Harley Street London W1G 9QG
Internal alterations throughout the building to include the construction of four demounta…
25/04782/LBC
2025 Approved
13 Harley Street London W1G 9QG
Creation of new terrace areas at ground floor level within a lightwell and at the rear of…
25/04781/FULL
2025 Approved
12 Harley Street London W1G 9PB
Installation of new handrails at no.8, 10 and 12; and repairs to existing front entrance…
25/04974/LBC
2025 Approved
12 Harley Street London W1G 9PB
Installation of new handrails at no.8, 10 and 12; and repairs to existing front entrance…
25/04973/FULL
2025
First Floor 15 Harley Street London W1G 9QQ
Re-orientation of an existing air handling unit (AHU) located on the rooftop of the moder…
25/06470/LBC
2025
First Floor 15 Harley Street London W1G 9QQ
Re-orientation of an existing air handling unit (AHU) located on the rooftop of the moder…
25/06469/FULL
2025
Cavendish House 18 Cavendish Square London W1G 0PJ
Removal of double doorway with surrounding frame and glazing, provision of matwell, refur…
25/06186/LBC
2025
4 Dean's Mews London W1G 9EF
Removal of the existing roof features and creation of a single storey extension, the exca…
25/02391/FULL
2025
4 Dean's Mews London W1G 9EF
Removal of the existing roof features and creation of a single storey extension, the exca…
25/02392/LBC
2025
Cavendish Square London
Display of non illuminated egg sculpture and plinth measuring 0.5m X 1.6m for a temporary…
25/00886/ADV
2025
14 Cavendish Square London W1G 9DB
Use of lower ground, ground, first, and second floors as a not-for-profit museum (Use Cla…
25/00722/FULL
2024
18 Wigmore Street London W1U 2RG
Removal of condition 5 (D) of planning permission dated 19th April 2021 (RN:20/04541/FULL…
24/08041/FULL
2024
12 Harley Street London W1G 9PB
Installation of new handrails and replacement of existing front entrance steps at 8, 10 a…
24/07385/LBC
2024
12 Harley Street London W1G 9PB
Installation of new handrails and replacement of existing front entrance steps at 8, 10 a…
24/07384/FULL
2024 Approved
5 Wimpole Street London W1G 9SJ
1 x London plane: crown reduce to 1-1.5m above the previous most recent reduction points…
24/06844/TCA
2024
4 Wimpole Street London W1G 9SH
Installation of three air conditioning units within an acoustic enclosure to the rear cou…
24/05803/FULL
2024 Withdrawn
1 - 7 Harley Street London W1G 9QD
Minor internal and external alterations in connection with the installation of photovolta…
24/02588/LBC
2020 Approved
14 Cavendish Square London W1G 9DB
Dual/alternative use of part basement, part ground floor and first to third floors as off…
20/02969/FULL
2020 Refused
12-14 Wigmore Street London W1U 2DU
Display of two white box fascia signs with halo illuminated letters measuring 0.35m x 1.5…
20/03282/ADV
2019 Approved
21 Harley Street London W1G 9QL
Erection of rear extensions at second, third and fourth floor levels to incorporate a new…
19/08752/LBC
2019 Approved
21 Harley Street London W1G 9QL
Erection of rear extensions at second, third and fourth floor levels to incorporate a new…
19/08751/FULL
2020 Approved
2 Wigmore Place London W1U 2LL
Excavation to provide new basement storey to enlarge dwellinghouse (Class C3).
20/01701/FULL
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