17 Welbeck Street London W1G 9XJ Data via plota.co.uk
Proposal
Installation of five condenser units to internal lightwell and associated pipework and refurbishment works including repairs to external staircase. (Linked to 25/06438/LBC) Data via plota.co.uk
Application progress
Approved on 3 Mar 2026 · Delegated Decision · Last checked 18 Oct 2026
Documents 24
Decision & officer reports 2
Statements & assessments 4
Plans & drawings 10
Application forms 1
Consultation & comments 1
Other documents 6
Associated applications 3
- Installation of five condenser units to internal lightwell and associated pipework and refurbishment works including repairs…
- Installation of five condenser units to internal lightwell and internal fan coil units with associated pipework, refurbishment…
Conditions 4 discharged
Site constraints 10
Show the other 65 with distances
- 8 m57, Queen Anne Street W1Grade II
- 16 m12-14, Welbeck Street W1Grade II
- 22 m54, Welbeck Street W1Grade II
- 22 m1, Bentinck Street W1Grade II
- 33 m55a, Welbeck Street W1Grade II
- 34 m58, Queen Anne Street W1Grade II
- 37 m56, Queen Anne Street W1Grade II
- 38 m49, Welbeck Street W1Grade II
- 44 m48, Welbeck Street W1Grade II
- 44 m52 and 54, Queen Anne Street W1Grade II
- 46 m75-6, Wimpole StreetGrade II
- 48 m74, Wimpole Street W1Grade II
- 51 m21 and 22, Welbeck Street W1Grade II
- 52 m3-7, Bulstrode Street W1Grade II
- 52 m11, Welbeck Street W1Grade II
- 52 m78 Wimpole Street, WestminsterGrade II
- 53 m50, Queen Anne Street W1Grade II
- 58 m48, Queen Anne Street W1Grade II
- 59 mWigmore HallGrade II
- 62 m23 and 24, Welbeck Street W1Grade II
- 63 m46, Queen Anne Street W1Grade II
- 69 m8, Welbeck Street W1Grade II
- 70 m70, Wimpole Street W1Grade II
- 71 m71, Wimpole Street W1Grade II
- 74 m69, Wimpole Street W1Grade II
- 75 m42, Wigmore Street W1Grade II
- 76 m7, Welbeck Street W1Grade II
- 80 m67, Wimpole Street W1Grade II
- 83 m8, Bentinck Street W1Grade II
- 84 m44 and 46, Wigmore Street W1Grade II
- 85 mPair of Bollards Between Numbers 79 and 80 at Entrance to Welbeck WayGrade II
- 86 m37, Queen Anne Street W1Grade II
- 86 m13-16, Wimpole Street W1Grade II
- 89 m9, Bentinck Street W1Grade II
- 90 m43-45, Welbeck Street W1Grade II
- 92 m28-32, Welbeck Street W1Grade II
- 93 m40, Queen Anne Street W1Grade II
- 95 m10, Wimpole Street W1Grade II
- 97 m35, Queen Anne Street W1Grade II
- 98 m17, Wimpole Street W1Grade II
- 99 m38, Queen Anne Street W1Grade II
- 99 m85, Wimpole Street W1Grade II
- 103 m18-20, Wimpole Street W1Grade II
- 105 m33, Queen Anne Street W1Grade II
- 108 m7, Wimpole Street W1Grade II
- 110 m26, WIGMORE STREET W1 (See details for further address information)Grade II
- 111 m4, Marylebone Mews W1Grade II
- 112 m34, Queen Anne Street W1Grade II
- 113 m31, Queen Anne Street W1Grade II
- 115 m5 and 6, Wimpole Street W1Grade II
- 123 m61 and 62, Wimpole Street W1Grade II
- 123 m29, Queen Anne Street W1Grade II
- 129 m19, Bulstrode Street W1Grade II
- 129 m23, Wimpole Street W1Grade II
- 129 m24, WIGMORE STREET W1 (See details for further address information)Grade II
- 130 m28, Queen Anne Street W1Grade II
- 132 mHinde Street Methodist ChurchGrade II
- 132 m27-37, Wigmore Street W1Grade II
- 135 m24, Wimpole Street W1Grade II
- 136 m21, Bulstrode Street W1Grade II
- 136 m26, Queen Anne Street W1Grade II
- 137 mChurch House to Hinde Street Methodist ChurchGrade II
- 140 m2, Hinde Street W1Grade II
- 142 m24, Queen Anne Street W1Grade II
- 149 m33-35, Thayer Street W1Grade II
Checked on 2 November 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 June 2026, 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
- Full Planning Permission Application
- Postcode
- W1G 9XJ
- Received
- 9 Sept 2025
- Validated
- 9 Sept 2025
- Ward
- Marylebone
- Case officer
- Show
- Target decision
- 3 Mar 2026
- Decision
- Application Permitted
- Decision date
- 3 Mar 2026
- Decision level
- Delegated Decision
- Agent
- Howard De Walden Estate
- Leaseholder
- Show
How this decision compares
Decided in 175 days from validation, 99 days slower than Westminster's median of 76 for full applications. Approved, as 86% of full applications here are.
Plota live figures for full applications decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
43 neighbours consulted · Last counted 18 Oct 2026
Consultation & key dates
- Alt. reference
- PP-14282257
- Planning Portal ref
- PP-14282257
- Comments by
- 20 Oct 2025
- Site or press notice
- 29 Sept 2025
- Env. assessment
- No
Historical activity at this location
27 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.
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.
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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17 Welbeck Street London W1G 9XJ
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