Planning application
Leconfield House Curzon Street London W1J 5JA
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Prior approval for change of use from commercial (Class E) to residential (Class 3) at Leconfield House, Curzon Street under Schedule 2, Part 3, Class MA (Commercial, business and service to dwelling houses).
As published by the council, reference 26/03580/P3JPA
Application record
- Reference
- 26/03580/P3JPA
- Type
- Prior Approval Class E to Dwellings (MA)
- Status
- Pending
- Received
- 1 Jun 2026
- Validated
- 1 Jun 2026
- Ward
- West End
- Postcode
- W1J 5JA
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2026.
-
26/02747/ADV Awaiting decision
Leconfield House Curzon Street London W1J 5JA
Display of externally illuminated temporary display image to the scaffolding wrapping measuring 29.3m x 66m. Linked with 26/02739/FULL
-
26/02739/FULL Awaiting decision
Leconfield House Curzon Street London W1J 5JA
External facade alterations of Leconfield House. (Linked with 26/02747/ADV)
Timeline
Dates from the published record
-
1 Jun 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 27 July 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 65 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Carter Jonas LLP Agent
885 applications on PlanIndex · across 131 councils · 88% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
23 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster's median decision took 65 days. More in our guide to how long planning decisions take.
About prior approval applications
Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
Leconfield House Curzon Street London W1J 5JA
84% historically approved · decision due ~19 Jun
Display of externally illuminated temporary display image to the scaffolding wrapping measuring 29.3m x 66m. Linked with 26/02739/FULL
Awaiting decision Advertising 14 docs -
Leconfield House Curzon Street London W1J 5JA
87% historically approved · decision due ~19 Jun
External facade alterations of Leconfield House. (Linked with 26/02747/ADV)
Awaiting decision Full applications 44 docs -
Chesterfield House South Audley Street London W1K 1HA
Installation of 6 no. antennas, 2 no. transmission dishes and 3 no. radio equipment cabinets on the roof of the building, all located within a GRP screen, and ancillary development thereto.
Refused Full applications 31 docs -
Curzon House 21 - 23 Curzon Street London W1J 7TE
91% historically approved · decision due ~10 Apr
Details of approval of two additional samples of the brick cleaning pursuant to condition 3 of listed building dated 15th July 2025 (RN:25/03459/LBC)
Awaiting decision Conditions 17 docs -
19 Curzon Street London W1J 7TB
Installation of three satellite dishes at roof level.
Granted Full applications 8 docs -
19 Curzon Street London W1J 7TB
Installation of three satellite dishes at roof level.
Granted Heritage and listed buildings 2 docs
Other prior approval applications
In Westminster
-
26/05874/APA Awaiting decision
Charing Cross Station Strand London WC2N 5HS
Prior approval under part 18 (class a) of the town and country planning (general permitted development) (England) order 2015 Villiers Street façade external alterations at London Charing Cross station, WC2N 5HF
-
26/03606/DPAD Awaiting decision
6 Crompton Street London W2 1ND
Demolition of the main building down to the ground floor and retain and cap off the existing basement; demolition of external garages and the boundary walls retained; and new boundary wall or fencing.
-
26/01145/P3JPA Granted
Stone House 9 Weymouth Street London W1W 6DB
Change of use of ground floor of 9 Weymouth Street, a Commercial, Business, Services (Use Class E) to Dwellinghouses (Use Class C3) Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) under Schedule 2, Part 3, Class MA (Commercial, business and service to dwelling houses).
-
26/02098/P3JPA Awaiting decision
44 Ebury Mews East London SW1W 9QA
Notification for Prior Approval under Class MA, Part 3 of Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the conversion of the existing office accommodation (Class E) to provide one residential dwelling.
-
26/02097/P3JPA Awaiting decision
40 - 42 Ebury Street London SW1W 0LU
Notification for Prior Approval under Class MA, Part 3 of Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the conversion of the existing office accommodation (Class E) to provide two residential dwellings.