Planning application
37 Harley Street London W1G 8QG
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 condenser units within acoustic enclosure to front lightwell. (Linked with 26/03518/LBC)
As published by the council, reference 26/03517/FULL
Application record
- Reference
- 26/03517/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 28 May 2026
- Validated
- 28 May 2026
- Ward
- Marylebone
- Postcode
- W1G 8QG
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2026.
-
26/05434/LBC Awaiting decision
37 Harley Street London W1G 8QG
Installation of secondary glazing to the arched window at ground floor level.
-
26/03518/LBC Awaiting decision
37 Harley Street London W1G 8QG
Installation of two air condenser units within acoustic enclosure to front lightwell and three fan coil units internally to ground floor level. (Linked with 26/03517/FULL)
Timeline
Dates from the published record
-
28 May 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 23 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 66 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Howard de Walden Estates Limited Agent, a developer registered in London
Active · incorporated 1963 · London
35 applications on PlanIndex
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
8 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.
Watch members (£5 a month) open the document list 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 decided full applications in a median of 91 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
37 Harley Street London W1G 8QG
90% historically approved · decision due ~23 Jul
Installation of two air condenser units within acoustic enclosure to front lightwell and three fan coil units internally to ground floor level. (Linked with 26/03517/FULL)
Awaiting decision Heritage and listed buildings 8 docs -
37 Harley Street London W1G 8QG
90% historically approved · decision due ~5 Oct
Installation of secondary glazing to the arched window at ground floor level.
Awaiting decision Heritage and listed buildings Windows or glazing -
23 Queen Anne Street London W1G 9HN
87% historically approved · decision due ~24 Mar
Installation of photovoltaic panels (PV) at main roof level.
Awaiting decision Full applications 14 docs -
43 - 49 Harley Street London W1G 8BT
Installation of support beam for failing beam in room G11 ground floor of 45 Harley Street.
Granted Heritage and listed buildings 16 docs -
30 Queen Anne Street London W1G 8HX
Erection of an infill extension at basement and ground floor level, Installation of a new dormer on top of the rear closet wing to facilitate a light overrun, erection of a single storey extension at first floor level to the rear of the property and installation of railing on the eastern boundary of the site to facilitate the use of flat roof at first floor level as a terrace. All to provide enhanced office accommodation (Class E)
Refused Full applications Extension Loft or dormer 29 docsSmall domestic -
29 Queen Anne Street London W1G 9HU
Replacement of a window on the rear elevation with a door. (Linked with 25/04706/LBC)
Granted Full applications Windows or glazing 50 docs
Other full applications
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26/06295/FULL Awaiting decision
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26/06297/FULL Awaiting decision
15 Warwick Way London SW1V 1QT
Alterations to rear elevation at basement level comprising replacement window and installation of double opening door.
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26/06294/FULL Awaiting decision
15 Eaton Mews South London SW1W 9HP
Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.
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26/06273/FULL Awaiting decision
9A Grosvenor Square London W1K 5AE
Installation of new natural Portland Stone step surfaces to the two highway facing front entrance doors. (Linked to 26/05473/LBC)
-
26/06277/FULL Awaiting decision
Hospital 60 Grove End Road London NW8 9NH
Variation of conditions 1 and removal of condition 6 of planning permission dated 12th November 2019 (RN 19/07202/FULL) for the Variation of condition 12 of planning permission dated 21 June 2013 (RN: 13/01330/FULL) for the: Demolition of single storey block to north east elevation of main hospital building. Erection of three storey building (plus basement level) with link to existing hospital fronting onto Grove End Road and erection of two storey extension to the main entrance building, both to provide additional hospital accommodation (Class D1). Installation of mechanical plant and associated external alterations. NAMELY, to include amended phase 2 drawings and condition 6 to be removed as the as approved 11 car parking space are no longer proposed and the car lift is no longer shown on the amended plans.