Planning application
Second Floor (Excluding North East Part) Devonshire House Mayfair Place London W1J 8AJ
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Installation of two air conditioning condenser units to the second floor lightwell, two internal air conditioning units, and associated pipework. (Linked with 26/05129/FULL)
As published by the council, reference 26/05130/LBC
Application record
- Reference
- 26/05130/LBC
- Type
- Listed Building Consent Application
- Status
- Pending
- Received
- 30 Jul 2026
- Validated
- 20 Aug 2026
- Postcode
- W1J 8AJ
Timeline
Dates from the published record
-
30 Jul 2026
Received by Westminster
-
20 Aug 2026
Validated
Checked as complete and ready for consideration.
-
30 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 15 October 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 61 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Agent on file, registered in Farnham
440 applications on PlanIndex · across 93 councils · 95% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
7 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
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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Devonshire House Mayfair Place London W1J 8AJ
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Devonshire House Mayfair Place London W1J 8AJ
Detailed drawings of the new doors pursuant to Condition 2 of listed building consent dated 13th February 2025 (RN:24/06628/LBC)
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Detailed drawings of the new doors pursuant to condition 6 of planning permission dated 13th February 2025 (RN:24/06627/FULL)
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89% historically approved · decision due ~11 Aug
Details of facing materials pursuant to condition 3 of listed building consent dated 19 May 2026 (RN: 25/08851/LBC).
Decided -
Second Floor (Excluding North East Part) Devonshire House Mayfair Place London W1J 8AJ
87% historically approved · decision due ~15 Oct
Installation of two air conditioning condenser units to the second floor lightwell, two internal air conditioning units, and associated pipework. (Linked with 26/05130/LBC)
Awaiting decision Full applications -
79 Piccadilly London W1J 8EU
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Granted Advertising 12 docs
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