1 Bentinck Street London W1U 2EA Data via plota.co.uk

26/05399/LBC - Listed Building Consent Application Pending
Extensions & alterationsListed buildingsUtility infrastructure

Proposal

Installation of external air condensers within the lower-ground-floor lightwell, replacement of existing single glazing with slim-profile double glazing and associated works; together with alterations to the listed building including installation of fan coil units, panel heaters, associated pipework and services, acoustic improvements and associated internal works. (Linked with 26/05398/FULL) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
7 Aug 2026
✓
Validated
17 Aug 2026
Decision
Expected by 12 Oct 2026

Under consideration

No decision has been issued yet. Plota predicts a decision by 16 Oct 2026, from Westminster's recent extensions.

The consultation period closed on 16 Sept 2026.

Documents

View the documents on the council's website ↗

Associated applications 2

Site constraints 10

Grade II listed: 1, Bentinck Street W1
List entry 1066462 · The pin is inside its outline · 62 more listed buildings within 150 m (62 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 62 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 ↗
Article 4 direction
Article 4 Basement Development Permitted Rights Removed. Named permitted development rights are withdrawn here.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.
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 ↗
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
National infrastructure project 1812 m away: Thames Tideway Tunnel; Registered park or garden 197 m away: Portman Square and Manchester Square; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Town centre 71 m away: Marylebone High Street.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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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10 Bentinck Street London W1U 2EW

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Important details

Council
Westminster
Application type
Listed Building Consent Application
Postcode
W1U 2EA
Received
7 Aug 2026
Validated
17 Aug 2026
Ward
Marylebone
Case officer
Show
Target decision
12 Oct 2026
Applicant
Show
Agent
Howard de Walden Estates Limited

Decision outlook

Day 53 of the 56-day target. Westminster usually decides extensions by day 55.

Day 533 days to the 56-day target
56%decided within 8 weeks
88%approved
1,674decided 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 7 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14657037
Planning Portal ref
PP-14657037
Comments by
16 Sept 2026
Site or press notice
26 Aug 2026
Env. assessment
No

Historical activity at this location

27 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2017 Approved
Display for a temporary period of six months of a non-illuminated estate agent board atta…
17/04640/AD7
2016 Approved
Display for a temporary period of six months of a non-illuminated estate agent board atta…
16/11718/AD7
Within ~100m

Nearby activity

2025
8 Bentinck Street London W1U 2BJ
Erection of rear extension from lower ground to 1st floor including new plant enclosure w…
25/08064/LBC
2025
8 Bentinck Street London W1U 2BJ
Erection of rear extension from lower ground to 1st floor including new plant enclosure w…
25/08063/FULL
2025
58 Queen Anne Street London W1G 8HW
Minor internal alterations to the building involving the introduction of double doors at…
25/08051/LBC
2025
17 Welbeck Street London W1G 9XJ
Installation of five condenser units to internal lightwell and internal fan coil units wi…
25/06437/FULL
2025
17 Welbeck Street London W1G 9XJ
Installation of five condenser units to internal lightwell and internal fan coil units wi…
25/06438/LBC
2025
45 Welbeck Street London W1G 8DZ
Replacement of windows with slimline double glazing windows and associated works.
25/06314/FULL
2025
45 Welbeck Street London W1G 8DZ
Replacement of windows with slimline double glazing windows and associated works. (Linked…
25/05979/LBC
2025 Approved
Bentinck Mansions Bentinck Street London W1U 2ER
Installation of mechanical plant at main roof level within an enclosure.
25/04520/FULL
2025 Approved
58 Queen Anne Street London W1G 8HW
Minor internal alterations to replace the existing asbestos doors in the building
25/03879/LBC
2025 Approved
9 Bentinck Street London W1U 2EH
Removal of rear first floor extension and rooflight adjacent to create new terrace with r…
25/03548/LBC
2025 Approved
9 Bentinck Street London W1U 2EH
Removal of rear first floor extension and rooflight adjacent to create new terrace with r…
25/03547/FULL
2025 Approved
3 Bulstrode Street London W1U 2JB
Internal works to re-configure the existing apartment including the removal of an existin…
25/01841/LBC
2025
50 Queen Anne Street London W1G 9LA
Installation of new air source heat pump to existing plant enclosure to rear roof; format…
25/02536/LBC
2025
50 Queen Anne Street London W1G 9LA
Installation of new air source heat pump to existing plant enclosure and roof light to re…
25/02535/FULL
2025
8 Bentinck Street London W1U 2BJ
Erection of a rear extension from lower ground floor to 1st floor including new plant enc…
25/02408/LBC
2025
8 Bentinck Street London W1U 2BJ
Erection of a rear extension from lower ground floor to 1st floor including new plant enc…
25/02407/FULL
2025
Bentinck Mansions Bentinck Street London W1U 2ER
Installation of one air source heat pump to roof
25/02267/FULL
2025
Basement And Ground Floor 45 Welbeck Street London W1G 8DZ
Internal alterations at ground and lower ground floor.
25/02269/LBC
2025
58 Queen Anne Street London W1G 8HW
External alterations to the ground floor front facade including replacement of entrance d…
25/01071/LBC
2025
108 Marylebone Lane London W1M 6HH
Display of non illuminated egg sculpture and plinth measuring 0.5m X 1.6m in conjunction…
25/00887/ADV
2021 Refused
Basement And Ground Floor 98 Marylebone Lane London W1U 2QB
Display of one non-illuminated A board sign measuring 1m x 0.5m located on the highway.
21/08389/ADV
2021 Approved
Basement And Ground Floor 98 Marylebone Lane London W1U 2QB
Display of non illuminated projecting awning measuring 1.7m x 6.5m and lettering applied…
21/08388/ADV
2021 Approved
Basement And Ground Floor 98 Marylebone Lane London W1U 2QB
Installation of replacement shopfront.
21/08387/FULL
2021 Approved
88 Marylebone Lane London W1U 2PY
Display of externally illuminated fascia measuring 0.5m X 8.8m and externally illuminated…
21/08024/ADV
2021 Refused
The Marylebone Hotel 47 Welbeck Street London W1G 8DN
Installation of fixed curved awning
21/05526/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