Planning application
44 Chiltern Street London W1U 7QP
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Installation of two external air conditioning condenser units positioned at ground floor level, on top of the existing light well roof.
As published by the council, reference 26/02432/FULL
Application record
- Reference
- 26/02432/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 14 Apr 2026
- Validated
- 14 Apr 2026
- Ward
- Marylebone
- Postcode
- W1U 7QP
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2025: 1 approved, 0 refused.
-
25/06012/ADV Granted
44 Chiltern Street London W1U 7QP
Display of three vinyls on the external ground floor windows for a temporary period of one year from 01 September 2025 until 31 August 2026.
Timeline
Dates from the published record
-
14 Apr 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 9 June 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 91 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
101 A+D LTd. Agent, registered in Bristol
Active · incorporated 2019 · Bristol
4 applications on PlanIndex
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See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
14 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.
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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 119 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
-
44 Chiltern Street London W1U 7QP
Display of three vinyls on the external ground floor windows for a temporary period of one year from 01 September 2025 until 31 August 2026.
Granted Advertising Windows or glazing 11 docs -
40 - 42 Chiltern Street London W1U 7QN
Installation of two wall mounted electric heaters, four wall lamps and two awnings.
Refused Full applications 22 docs -
40 - 42 Chiltern Street London W1U 7QN
Display of two non-illuminated fascia signs each measuring 0.50m x 0.12m and a non-illuminated hanging sign measuring 0.38m x 0.38m. (Linked with 25/06933/FULL)
Decided Advertising 22 docs -
27 Chiltern Street London W1U 7PJ
88% historically approved · decision due ~10 Dec
Installation of three external air-conditioning condenser units within the two existing rear courtyards/lightwells at ground-floor level. Two condenser units will be located within the left-hand courtyard and enclosed within a purpose-built acoustic enclosure, while one condenser unit will be located within the right-hand courtyard and screened by a multi-panel acoustic screen. The proposed acoustic mitigation measures are intended to minimise operational noise and reduce the impact on neighbouring residential properties. The installation will include the necessary associated works to support the operation of the condenser units. No change of use is proposed as part of this application.
Awaiting decision Full applications -
Ground Floor 32 Chiltern Street London W1U 7QQ
82% historically approved · decision due ~9 Apr
Display of three vinyls to ground floor windows measuring 2.41m x 1.75m, 1.42m x 0.6m and 0.34m x 0.6m for a temporary period of one year
Awaiting decision Advertising Windows or glazing 4 docs -
33 Manchester Street London W1U 7LQ
88% historically approved · decision due ~28 Aug
Replacement of windows and door at all revelations with new double glazed units and installation of secondary glazing to existing single glazed historic windows. (Linked with 26/04421/LBC)
Decided Full applications Windows or glazing
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26/05200/FULL Decided
1 The Court House 165 Seymour Place London W1H 4PU
Installation of waterproofing system to the existing lead flat roofs
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26/07521/FULL Awaiting decision
Flat 18 Harlequin Court 20 Tavistock Street London WC2E 7NZ
Installation of one external condenser unit
-
26/07508/FULL Awaiting decision
Buckingham Palace The Mall London SW1A 1AA
Replacement of existing security lighting to the Buckingham Palace Forecourt with 80 compact LED spotlights installed within the lantern clusters across 10 principal piers, with associated concealed cabling and reversible fixings. (Linked with 26/07509/LBC)
-
26/07472/FULL Awaiting decision
Flat 3 82 New Cavendish Street London W1G 9TA
Replacement windows to second floor level with vacuum, double glazing windows. (Linked with 26/07473/LBC)