Third Floor And Fourth Floor Rear 128 Mount Street London W1K 3NU Data via plota.co.uk
Proposal
Replacement of existing access hatch, ladder and internal loft with an Automatic Opening Vent with retractable ladder and integrated handrail (Linked 25/05411/LBC) Data via plota.co.uk
Application progress
Approved on 23 Oct 2025 · Delegated Decision · Last checked 31 Oct 2026
Documents 21
Decision & officer reports 2
Statements & assessments 2
Plans & drawings 8
Application forms 1
Consultation & comments 1
Other documents 7
Associated applications 2
- Replacement of existing access hatch, ladder and internal loft with an Automatic Opening Vent with retractable ladder…
Site constraints 11
Show the other 48 with distances
- 15 m130, MOUNT STREET (See details for further address information)Grade II
- 21 m35, Berkeley Square W1Grade II
- 26 m117-121, MOUNT STREET W1 (See details for further address information)Grade II
- 31 m4, 5, 5a, 5b, 5c, Mount Street W1Grade II
- 33 m1, CARLOS PLACE W1 (See details for further address information)Grade II
- 51 m2-8, Carlos Place W1Grade II
- 67 m115 and 116, Mount Street W1Grade II
- 75 mVestry and PresbyteryGrade II
- 76 m41, Berkeley Square W1Grade II
- 84 m8, Hill Street W1Grade II
- 86 mChurch of the Immaculate ConceptionGrade II*
- 87 m10, Hill Street W1Grade II
- 89 mBourdon HouseGrade II*
- 91 m50, Grosvenor Street W1Grade II
- 91 m12 and 14, Mount Row W1Grade II
- 92 mNumbers 6 to 10 (Even) and Attached RailingsGrade II
- 93 m27 and 28, Berkeley Square W1Grade II
- 102 m1 and 3, Hill Street W1Grade II
- 102 m42, Berkeley Square W1Grade II
- 106 m109-113, Mount Street W1Grade II
- 107 mCoach and Horses Public HouseGrade II
- 109 m7, Hill Street W1Grade II
- 111 m9, Hill Street W1Grade II
- 111 m43, Berkeley Square W1Grade II
- 112 m49, Grosvenor Street W1Grade II
- 113 m25, Berkeley Square W1Grade II
- 114 m11, HILL STREET W1 (See details for further address information)Grade II
- 117 mConnaught HotelGrade II
- 117 m52, Grosvenor Street W1Grade II
- 118 m44, Berkeley Square W1Grade I
- 118 m44, Hay's Mews W1Grade II
- 125 m104-108, Mount Street W1Grade II
- 126 m51, Grosvenor Street W1Grade II
- 128 m45 and 46, Berkeley Square W1Grade I
- 128 m45, Hay's Mews W1Grade II
- 129 m20, Hill Street W1Grade II
- 137 m24, Berkeley Square W1Grade II
- 137 m22, Hill Street W1Grade II
- 139 m46, Grosvenor Street W1Grade II*
- 140 m17, Hill Street W1Grade I
- 142 m41-42 and 43 Hay's MewsGrade II
- 142 m10-12, Mount Street W1Grade II
- 145 m26, Hill Street W1Grade II
- 146 mShelter in Centre of Berkley Square GardenGrade II
- 146 m43, Grosvenor Street W1Grade II
- 147 m19, Hill Street W1Grade II*
- 148 mThe Punch Bowl Public HouseGrade II
- 149 m56 and 57, Grosvenor StreetGrade II
Checked on 1 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.
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
- W1K 3NU
- Received
- 1 Aug 2025
- Validated
- 1 Aug 2025
- Ward
- West End
- Case officer
- Show
- Target decision
- 23 Oct 2025
- Decision
- Application Permitted
- Decision date
- 23 Oct 2025
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Newmark
How this decision compares
Decided in 83 days from validation, 7 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.
49 neighbours consulted · Last counted 31 Oct 2026
Consultation & key dates
- Alt. reference
- PP-14124434
- Planning Portal ref
- PP-14124434
- Comments by
- 2 Sept 2025
- Site or press notice
- 12 Aug 2025
- Env. assessment
- No
Historical activity at this location
32 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.
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Third Floor And Fourth Floor Rear 128 Mount Street London W1K 3NU
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