Fourth Floor 2 Cavendish Square London W1G 0PU Data via plota.co.uk
Proposal
Installation of internal secondary glazing to the 4th-floor windows, with internal reversible, non-destructive fixings into the window reveals, and slimline units to maintain background ventilation and prevent interstitial condensation. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision between 29 Oct 2026 and 7 Nov 2026, from Westminster's recent extensions.
Documents 10
Plans & drawings 2
Application forms 2
Other documents 6
Site constraints 11
Show all 30 with distances
- 7 m3, Cavendish Square W1Grade II*
- 8 m1 and 1a, Cavendish Square W1Grade II
- 20 m4, Cavendish Square W1Grade II
- 31 m289-305 and 313-319 Regent Street W1 and 3 Cavendish PlaceGrade II
- 32 mUniversity of Westminster (formerly Regent Street Polytechnic)Grade II
- 33 m5, Cavendish Square W1Grade II
- 56 mNumber 7 and Attached RailingsGrade II
- 76 mStatue of Lord George Bentinck (at South End of Square Garden)Grade II
- 77 m273, 275, 275A AND 281A, REGENT STREET W1 (See details for further address information)Grade II
- 93 m12, Cavendish Place W1Grade II
- 93 m14 Cavendish PlaceGrade II
- 107 m302-312, REGENT STREET W1 (See details for further address information)Grade II
- 110 mBridgeGrade II*
- 113 m314-326, REGENT STREET W1 (See details for further address information)Grade II
- 113 m261-271, REGENT STREET W1 (See details for further address information)Grade II
- 113 mWalmar HouseGrade II
- 116 mThe Langham HiltonGrade II
- 117 m14 and 15, Langham Place W1Grade II
- 121 m10a, 11 and 12, Chandos Street W1Grade II
- 130 mVentilation Standard on Island North of Oxford CircusGrade II
- 136 m15, Cavendish Square W1Grade II
- 139 mRoyal College of NursingGrade II
- 140 mHarcourt HouseGrade II
- 142 mPeter RobinsonGrade II
- 143 m2, Harley Street W1Grade II
- 143 m16, Cavendish Square W1Grade II
- 147 mGroup of 3 K6 Telephone Kiosks Adjacent to Former Langham HotelGrade II
- 147 m82, Mortimer Street W1Grade II
- 148 m2 Lamp Standards in Middle of Road Between Junctions With John Princes Street and Hollies StreetGrade II
- 150 m18, Cavendish Square W1Grade II*
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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.
Building
From the energy performance certificate lodged in September 2020, the latest held for this property. The building may have changed since. View the certificate
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
- W1G 0PU
- Received
- 1 Sept 2026
- Validated
- 8 Sept 2026
- Ward
- West End
- Case officer
- Show
- Target decision
- 3 Nov 2026
- Applicant
- Show
- Freehold owner
- Show
Decision outlook
Day 51 of the 56-day target. Westminster usually decides extensions by day 55.
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
Last counted 28 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15196364
- Planning Portal ref
- PP-15196364
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
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.
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
Freehold owner and 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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Fourth Floor 2 Cavendish Square London W1G 0PU
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Freehold owner and leaseholders, on paid plans
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