1 Clay Street London W1U 6AH Data via plota.co.uk

26/07024/FULL - Full Planning Permission Application Pending

Proposal

Variation of condition 5 of planning permission dated 15th October 2026 (RN ) for the Variation of Condition 1 of planning permission dated 3 February 2012 (RN: ) for demolition of existing three storey office (Class B1) building and erection of five residential town houses (Class C3) and excavation to create new basement level, ground and upper two floors. New terraces at front first floor level, sedum roof and solar thermal panels at roof level. Including works to land adjacent on the highway to provide a new pedestrian pavement. NAMELY, seeks a material amendment to remove the approved parking provision at No. 1 Clay Street and permit the conversion of the existing garage into a habitable room. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
14 Oct 2026
Decision
Expected by 9 Dec 2026

Under consideration

No decision has been issued yet. A decision is expected by 9 Dec 2026.

Comments are open until 18 Nov 2026

Comment on this application ↗

Site constraints 10

Grade II listed: 118, CRAWFORD STREET W1 (See details for further address information)
List entry 1289319 · 1 m away · 47 more listed buildings within 150 m (47 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 47 with distances
Historic England ↗
Portman Estate 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 Named permitted development rights are withdrawn here.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 405 m away: London Strategic Heat Main Project, at pre-application; Heritage at risk 78 m away: 94 and 100, Gloucester Place; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Town centre 67 m away: Baker Street (part).
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 18 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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Important details

Application type
Full Planning Permission Application
Postcode
W1U 6AH
Received
14 Oct 2026
Validated
14 Oct 2026
Ward
Marylebone
Case officer
Show
Target decision
9 Dec 2026
Applicant
Show

Public comments

No public comments yet.

101 neighbours consulted · Last counted 18 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15172943
Planning Portal ref
PP-15172943
Comments by
18 Nov 2026
Site or press notice
28 Oct 2026
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 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