Planning application
20 Air Street London W1B 5AN
Works: Windows or glazing
Relates to 26/06386/FULL
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Installation of a ventilation louvre within an existing third-floor window opening and associated mechanical ventilation equipment; internal alterations to reconfigure the Level 3 lounge, including new partitions, bar fit-out and associated building services. (Linked with 26/06386/FULL)
As published by the council, reference 26/06387/LBC
Application record
- Reference
- 26/06387/LBC
- Category
- Heritage and listed buildings
- Status
- Pending
- Received
- 17 Sep 2026
- Validated
- 25 Sep 2026
- Postcode
- W1B 5AN
Site history
Applications at this address on the Westminster register
This site has had 5 applications since 2026: 3 approved, 0 refused.
-
26/06386/FULL Awaiting decision
20 Air Street London W1B 5AN
Installation of a ventilation louvre within an existing third-floor window opening and associated mechanical ventilation equipment. (Linked with 26/06387/LBC)
-
26/00274/LBC Granted
20 Air Street London W1B 5AN
Installation of two rooftop condenser units.
-
26/00273/FULL Granted
20 Air Street London W1B 5AN
Installation of two rooftop condenser units.
-
26/00013/FULL Granted
20 Air Street London W1B 5AN
Installation of new plant on the main roof of the building.
Timeline
Dates from the published record
-
17 Sep 2026
Received by Westminster
-
25 Sep 2026
Validated
Checked as complete and ready for consideration.
-
25 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 20 November 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 86 days over the applications it decided in the last year.
Related applications
Cases linked to this one on the register
-
26/06386/FULL Awaiting decision
20 Air Street London W1B 5AN
Installation of a ventilation louvre within an existing third-floor window opening and associated mechanical ventilation equipment. (Linked with 26/06387/LBC)
1 later application on the register refers to this one:
-
26/06386/FULL Awaiting decision
20 Air Street London W1B 5AN
Installation of a ventilation louvre within an existing third-floor window opening and associated mechanical ventilation equipment. (Linked with 26/06387/LBC)
What 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 heritage and listed building applications in a median of 119 days. More in our guide to how long planning decisions take.
About heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
20 Air Street London W1B 5AN
88% historically approved · decision due ~12 Nov
Installation of a ventilation louvre within an existing third-floor window opening and associated mechanical ventilation equipment. (Linked with 26/06387/LBC)
Awaiting decision Full applications Windows or glazing -
20 Air Street London W1B 5AN
Installation of two rooftop condenser units.
Granted Heritage and listed buildings 19 docs -
First Floor 17 Air Street London W1B 5AF
89% historically approved · decision due ~26 Nov
Display for a temporary period of six months of a non-illuminated 'to let' board located on the face of the building at a height of between 3m and 4.6m above pavement level and measuring 1.2m x 0.9m.
Decided -
Ground Floor 17 Air Street London W1B 5AF
88% historically approved · decision due ~30 Sep
Installation of a new inward-opening painted timber-framed glazed entrance door within the existing ground-floor shopfront.
Decided Full applications Windows or glazing -
Ground Floor 17 Air Street London W1B 5AF
82% historically approved · decision due ~29 Oct
Display of externally illuminated projecting sign measuring 0.8m X 0.7m and externally illuminated fascia sign measuring 4.7m X 0.7m
Withdrawn Advertising 10 docs -
20 Air Street London W1B 5AN
Installation of new plant on the main roof of the building.
Granted Full applications 23 docs
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-
26/07191/LBC Awaiting decision
6 Wilton Place London SW1X 8RH
Layout alterations and replacement of internal doors.
-
26/07199/LBC Awaiting decision
49 Queen's Gardens London W2 3AA
Erection of a mansard roof extension incorporating rooflights and a rear balcony; installation of Juliet balconies at ground and first floor levels to the rear; demolition of the existing courtyard extension and erection of a single-storey infill extension; extension of the rear wing at first floor (mezzanine) and second floor levels; fenestration alterations including the installation of new windows; stucco repairs and partial rebuilding of the rear extensions; and associated internal alterations at all levels. (Linked to 26/07198/FULL)
-
26/07192/LBC Awaiting decision
119 Warwick Way London SW1V 4HS
Conversion and internal alterations to the ground floor flat (Retrospective)