57 Harley Street London W1G 8QS Data via plota.co.uk

25/08560/ADFULL - Approval of Details (Full PP) Approved
Admin / procedural

Proposal

Details of windows, concertina doors and lightwell lift balustrading; biodiversity management plan for green roof; adherance to CoCP; and consultation with London Underground Ltd pursuant to Conditions 4, 6, 7 and 14 of planning permission dated 23 October 2025 (RN: ) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
21 Nov 2025
✓
Approved
16 Jun 2026

Approved on 16 Jun 2026 · Delegated Decision · Last checked 11 Oct 2026

Documents 36

Decision & officer reports 2

PDF APPR. OF DETAILS-FULL RESMAT [PE] Decision Notice · 16 Jun 2026 View ↗ PDF DELEGATED REPORT Report · 16 Jun 2026 View ↗

Statements & assessments 9

PDF VIBRATION ASSESSMENT Acoustic report · 12 Mar 2026 View ↗ PDF VIBRATION ASSESSMENT Acoustic report · 12 Mar 2026 View ↗ PDF CONDITION 4 DESIGN STATEMENT Other · 26 Feb 2026 View ↗ PDF CONDITION 6 STATEMENT Other · 21 Nov 2025 View ↗ PDF 57 HARLEY STREET W1 BIODIVERSITY MANAGEMENT PLAN Background Papers · 21 Nov 2025 View ↗ PDF CONDITION 7 STATEMENT Other · 21 Nov 2025 View ↗ PDF CONDITION 14 STATEMENT Other · 21 Nov 2025 View ↗ PDF BASEMENT_IMPACT_ASSESSMENT Other · 21 Nov 2025 View ↗ PDF VIBRATION ASSESSMENT Other · 21 Nov 2025 View ↗

Plans & drawings 8

PDF AMENDED DRAWING Drawing · 12 Mar 2026 View ↗ PDF PLATFORM LIFT PLAN Drawing · 26 Feb 2026 View ↗ PDF PLATFORM LIFT 3D Drawing · 26 Feb 2026 View ↗ PDF RAILINGS DETAILS Drawing · 26 Feb 2026 View ↗ PDF FRONT RAILINGS DETAILS Drawing · 26 Feb 2026 View ↗ PDF AMENDED PL-1007 REV A. Drawing · 24 Feb 2026 View ↗ PDF AMENDED PL-601 Drawing · 24 Feb 2026 View ↗ PDF AMENDED PL-604 Drawing · 24 Feb 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 21 Nov 2025 View ↗

Consultation & comments 4

PDF ECNSLT-STD EXT CONSULTEES Background Papers · 28 May 2026 View ↗ PDF TFL COMMENTS Consultee Comment · 28 May 2026 View ↗ PDF ECNSLT-STD EXT CONSULTEES Background Papers · 12 Mar 2026 View ↗ PDF ECNSLT-STD EXT CONSULTEES Background Papers · 27 Feb 2026 View ↗

Other documents 12

PDF RECEIPT OF APPLICATION Other · 16 Feb 2026 View ↗ PDF BR-308 REV C Background Papers · 21 Nov 2025 View ↗ PDF PL-600 Background Papers · 21 Nov 2025 View ↗ PDF PL-602 Background Papers · 21 Nov 2025 View ↗ PDF PL-603 Background Papers · 21 Nov 2025 View ↗ PDF GREEN-ROOF-WATERING-GUIDE Other · 21 Nov 2025 View ↗ PDF GREEN-ROOF-MAINTENANCE-PROCEDURE Other · 21 Nov 2025 View ↗ PDF WILDFLOWER-BLANKET-SYSTEM Other · 21 Nov 2025 View ↗ PDF PL-812_PROPOSED_FIRST_FLOOR_AND_ROOF_PLANS Background Papers · 21 Nov 2025 View ↗ PDF PL-819_GREEN_ROOF_DETAILS Background Papers · 21 Nov 2025 View ↗ PDF APPROVED CMP VERSION 5 Other · 21 Nov 2025 View ↗ PDF STRUCTURAL_METHODOLOGY Other · 21 Nov 2025 View ↗

All documents on the council site ↗

Associated applications 3

Site constraints 8

Harley Street conservation area
Demolition needs planning permission and permitted development is restricted.
The council must give weight to preserving or enhancing the area's character and appearance. Not every council has published its boundaries as open data.
Council document ↗
2 Article 4 directions
Article 4 Basement Development Permitted Rights Removed · Article 4 Direction Class E To C3 In Central Activities Zone. Named permitted development rights are withdrawn here.
An Article 4 direction withdraws particular permitted development rights, so work that would normally need no application needs one here. Not every council has published its directions.
Air quality management area: Westminster AQMA
The council has declared the area as failing an air quality objective.
Schemes that add traffic, parking or combustion plant are assessed against the area's action plan and may need an air quality assessment.
Council record ↗
80 listed buildings within 150 m
Nearest: 59, Harley Street W1, Grade II, 4 m away · 1 Grade I, 11 Grade II*, 67 Grade II
The site itself is not listed. Listed building consent is needed for work that affects the special interest of a listed building, inside or out, on top of planning permission. Setting can be a consideration for buildings nearby; there is no fixed radius.
Show all 80 with distances
Historic England ↗
Central activities zone
The core of central London in the London Plan.
Offices, culture and the other strategic functions of the centre take priority over new housing here.
Also on the record
National infrastructure project 1840 m away: Thames Tideway Tunnel; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

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

Floor area670 m² (7,212 sq ft)
Energy ratingE (asset rating 103)
UseD1 Non-residential Institutions - Primary Health Care Building
HeatingHeating and Natural Ventilation

From the energy performance certificate lodged in May 2019, the latest held for this property. The building may have changed since. View the certificate

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Important details

Council
Westminster
Application type
Approval of Details (Full PP)
Postcode
W1G 8QS
Received
21 Nov 2025
Validated
21 Nov 2025
Ward
Marylebone
Case officer
Show
Target decision
16 Jan 2026
Decision
Application Permitted
Decision date
16 Jun 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Andrew Neil Associates Ltd

Public comments

No public comments yet.

Last counted 11 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14509220
Planning Portal ref
PP-14509220
Env. assessment
No

Historical activity at this location

35 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2025
Details of brick sample panel pursuant to condition 5 of planning permission dated 23rd O…
25/08306/ADFULL
2025
Relocation of the residential (Class C3) space from the part ground and basement floors t…
25/02646/FULL
2025 Approved
Details of Code of Construction Practice pursuant to condition 3 of planning permission d…
25/01706/ADFULL
2024
Details of a biodiversity management plan in relation to the extensive green roof pursuan…
24/08753/ADFULL
2024 Withdrawn
Use of part of second floor and full third floor to be incorporated into existing fourth…
24/02708/FULL
2023 Refused
Erection of a first floor rear extension, increase in height of existing rear ground floo…
23/06106/FULL
2023 Approved
Erection of a single storey extension at rear ground floor level; increase in height of e…
23/06128/FULL
2023
Erection of a basement extension to provide additional medical (Class E(e)) floorspace.
23/06596/FULL
2022 Withdrawn
Infill of existing rear lightwell at basement and first floor, infill of rear ground floo…
22/08133/FULL
2022 Approved
Infilling of central lightwell and installation of new passenger lift and shaft.
22/03917/FULL
Within ~100m

Nearby activity

2025 Withdrawn
4 Mansfield Mews London W1G 9NL
Partial removal of existing roof to create new roof terrace, accessible via a new stair w…
25/05099/FULL
2025 Withdrawn
4 Mansfield Mews London W1G 9NL
Partial removal of existing roof to create new roof terrace, accessible via a new stair w…
25/05100/LBC
2025
2 Mansfield Mews London W1G 9NL
Replacement of existing glass roof finish with a zinc covering.
25/06964/FULL
2025 Refused
30 Queen Anne Street London W1G 8HX
Erection of an infill extension at basement and ground floor level, Installation of a new…
25/05505/FULL
2025
43 - 49 Harley Street London W1G 8BT
Installation of support beam to facilitate failing beam at ground floor level (45 Harley…
25/06693/LBC
2025
9 Mansfield Street London W1G 9NZ
Change of Use from office (Class E) to residential (Use Class C3), refurbishment and reco…
25/06412/FULL
2025
9 Mansfield Street London W1G 9NZ
Change of Use from office (Class E) to residential (Use Class C3), refurbishment and reco…
25/06413/LBC
2025 Approved
Suite 1 Lower Ground Floor 73 - 75 Harley Street London W1G 8QJ
Additon of a attenuation to an existing chiller and air ventilation system in the middle…
25/04045/LBC
2025 Approved
2 Wimpole Mews London W1G 8PE
Replacement of existing garage door with window at ground floor level to the front facade…
25/03973/LBC
2025 Approved
2 Wimpole Mews London W1G 8PE
Replacement of existing garage door with window at ground floor level to the front facade…
25/03972/FULL
2025 Approved
43 - 49 Harley Street London W1G 8BT
Repositioning of four air conditioning condenser units in the inner light-well and at the…
25/01884/FULL
2025
15 Mansfield Street London W1G 9NH
Installation of a dumbwaiter from basement to first-floor level.
25/02948/LBC
2025
15 Mansfield Street London W1G 9NH
Internal fit-out works.
25/00664/LBC
2024
9 Mansfield Street London W1G 9NZ
Limited demolition, strip out and investigative works to 9 Mansfield Street and 6 Mansfie…
24/09052/LBC
2024
40 Harley Street London W1G 9PP
Installation of plant to roof within two acoustic enclosures, with associated pipework to…
24/07276/FULL
2024
22 Wimpole Street London W1G 8GP
Installation of one air conditioning unit to rear lightwell
24/06157/FULL
2024 Approved
9 Mansfield Street London W1G 9NZ
Removal of High Risk ACM's ( Asbestos Containing Materials ) that have been identified wi…
24/04574/LBC
2024
18 Wimpole Street London W1G 8GD
Installation of an air conditioning unit within the ground floor courtyard. (Linked to 24…
24/06093/LBC
2024
18 Wimpole Street London W1G 8GD
Installation of an air conditioning unit within the ground floor courtyard. (Linked to 24…
24/06092/FULL
2024
29 Wimpole Street London W1G 8GP
Doff cleaning of the terra cotta elements of the New Cavendish Street and Wimpole Street…
24/06035/LBC
2021 Refused
29 Wimpole Street London W1G 8GP
Internal refurbishment works to second floor flat, including re-plastering walls and ceil…
21/03384/LBC
2021 Approved
9 Mansfield Street London W1G 9NZ
Display for a temporary period of six months of a non-illuminated estate agent board atta…
21/02799/AD7
2021 Approved
31 Wimpole Street London W1G 8GS
Replacement of existing pavement lights and repairs.
21/02735/LBC
2021 Approved
73 - 75 Harley Street London W1G 8QJ
Renewal of display of non-illuminated estate agent board measuring 0.45m x 0.6m attached…
21/02320/AD7
2021 Approved
16A Harley Place London W1G 8LZ
5 x yew trees (T1-5): fell3 x crab apple (T6-T8): crown reduce by 1m and shape
21/00635/TCA
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Householder decisions

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.

One of the strictest councils
only 81% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Westminster decision statistics
Based on MHCLG data, the year to March 2026
86%
Overall approval rate
Below avg (87%) #201 of 296
81%
Householder approved
Below avg (90%) #277 of 296
44%
Decided in 8 weeks
Below avg (63%) #258 of 296
28%
Extended time limit
Below avg (41%) #46 of 296
83%
Minor dwellings approved
12 decided (1-9 homes)
67%
Major dwellings approved
3 decided (10+ homes)
81%
Change of use approved
133 decided
4,602
Total decisions
648 refused in the year to March 2026
Source: MHCLG planning statistics · See full council rankings

Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use

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.