20 Air Street London W1B 5AN Data via plota.co.uk
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) Data via plota.co.uk
Application progress
This application is under consideration - no decision has been issued yet. Plota predicts a decision between 14 Nov 2026 and 26 Nov 2026, from Westminster's recent commercial and major works.
Documents 2
Other documents 2
Associated applications 2
- Listed buildingInstallation of a ventilation louvre within an existing third-floor window opening…This application26/06387/LBC
Site constraints 8
Show the other 26 with distances
- 30 m82, Brewer Street W1Grade II
- 33 m2, Lower John Street W1Grade II
- 44 mRegent Palace Hotel (Main Building and Bridge)Grade II
- 45 m4 4a, Lower John Street W1Grade II
- 57 m20, GOLDEN SQUARE (See details for further address information)Grade II
- 57 m19, Golden Square W1Grade II
- 59 m4 Bollards,a Pair at Junction With Lower James Street,one Each at Corners of Lower John Street and Warwick StreetGrade II
- 74 m21, Golden Square W1Grade II
- 74 mThe QuadrantGrade II
- 86 m23, Golden Square W1Grade II
- 94 m24, Golden Square W1Grade II
- 100 mOur Lady of the Assumption Roman Catholic ChurchGrade II*
- 101 m106-130, REGENT STREET W1 (See details for further address information)Grade II
- 101 m11, Golden Square W1Grade II*
- 104 mStatue of George Ii in Centre of Square GardenGrade II
- 120 m2 Lampstandards in From of Number 14Grade II
- 120 mThe QuadrantGrade II
- 122 m4-6 Glasshouse StreetGrade II
- 124 mThe County Fire OfficeGrade II
- 129 m36-40, Great Pulteney Street W1Grade II
- 137 m49 and 51, Brewer Street W1Grade II
- 138 mThe QuadrantGrade II
- 139 m35, Great Pulteney Street W1Grade II
- 141 mPiccadilly HotelGrade II*
- 147 mSmiths CourtGrade II
- 149 mDenman HouseGrade II
Checked on 26 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Westminster
- Application type
- Listed Building Consent Application
- Postcode
- W1B 5AN
- Received
- 17 Sept 2026
- Validated
- 25 Sept 2026
- Ward
- West End
- Case officer
- Show
- Target decision
- 20 Nov 2026
- Agent
- Montagu Evans
- Leaseholder
- Show
Decision outlook
Day 10 of the 56-day target. Westminster usually decides commercial and major works by day 56.
Plota live figures for commercial and major works decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
Last counted 26 Sept 2026
Consultation & key dates
- Alt. reference
- PP-15154140
- Env. assessment
- No
Historical activity at this location
30 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
Leaseholders: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.
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20 Air Street London W1B 5AN
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Leaseholders, on paid plans
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