141 Harley Street London W1G 6BQ Data via plota.co.uk

26/06290/LBC - Listed Building Consent Application Pending
Extensions & alterationsListed buildings

Proposal

Internal alterations and openings at basement, ground and first floors as well as the insertion of a platform lift within 143 from basement to first floors, the partial infilling of the rear basement area and other minor adjustments to plan form. (Linked to 26/06340/FULL) Data via plota.co.uk

Track application Save this application and get an email when its status or decision changes. Alerts nearby Get email alerts for new planning applications near this address.
View original council record ↗Last checked

Application progress

✓
Received
14 Sept 2026
Decision
Expected by 9 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 4 Nov 2026 and 13 Nov 2026, from Westminster's recent extensions.

Comments are open until 28 Oct 2026

Comment on this application ↗

Documents 18

Statements & assessments 2

PDF DAS Design and Access Statement · 14 Sept 2026 View ↗ PDF HERITAGE IMPACT ASSESSMENT Heritage Statement · 14 Sept 2026 View ↗

Plans & drawings 11

PDF LOCATION PLAN Drawing · 14 Sept 2026 View ↗ PDF EXISTING SITE PLAN Drawing · 14 Sept 2026 View ↗ PDF APPROVED PLANNING DRAWINGS 2016 Drawing · 14 Sept 2026 View ↗ PDF PROPOSED SECTION B Drawing · 14 Sept 2026 View ↗ PDF PROPOSED SECTION 4AND 5 Drawing · 14 Sept 2026 View ↗ PDF PROPOSED THIRD AND ROOF PLAN Drawing · 14 Sept 2026 View ↗ PDF PROPOSED GROUND FLOOR EXTERNAL PLANT Drawing · 14 Sept 2026 View ↗ PDF PROPOSED FIRST AND SECOND FLOOR Drawing · 14 Sept 2026 View ↗ PDF PROPOSED SECTION A Drawing · 14 Sept 2026 View ↗ PDF PROPOSED BASEMENT AND GROUND FLOOR Drawing · 14 Sept 2026 View ↗ PDF PROPOSED SUB-BASEMENT AND MEZZANINE Drawing · 14 Sept 2026 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 14 Sept 2026 View ↗ PDF FEECALCULATION Background Papers · 14 Sept 2026 View ↗

Other documents 3

PDF RECEIPT OF APPLICATION Other · 23 Sept 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 14 Sept 2026 View ↗ PDF COVER LETTER Background Papers · 14 Sept 2026 View ↗

All documents on the council site ↗

Associated applications 3

  • FullApprovedcouncil archive

    Conditions 1 variation sought

  • Listed buildingPending26/06290/LBCThis application
    Internal alterations and openings at basement, ground and first floors as well as the insertion of a platform lift within 143…

Site constraints 12

Grade II listed: 135-145, Harley Street W1
List entry 1066678 · The pin is inside its outline · 29 more listed buildings within 150 m (3 Grade I, 4 Grade II*, 22 Grade II)
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 the other 29 with distances
Historic England ↗
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 ↗
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.
Scheduled monument 125 m away: A subterranean commercial ice-well (City of Westminster), Park Crescent West, W1
Its setting is a consideration for work nearby.
Nationally important archaeology protected by the Secretary of State. Work that affects the monument or its setting is rarely permitted.
Historic England ↗
Also on the record
Registered park or garden 113 m away: Regent's Park; National infrastructure project 617 m away: London Strategic Heat Main Project, at pre-application; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Town centre 20 m away: Marylebone Road; Metropolitan Open Land 81 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt

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

Floor area1,741 m² (18,740 sq ft)
Energy ratingC (asset rating 65)
UseNon-residential Institutions: Primary Health Care Building
HeatingHeating and Natural Ventilation

From the energy performance certificate lodged in January 2024, the latest held for this property. The building may have changed since. View the certificate

Work with planning data?

Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.

About Plota's data service

Other new applications on this street

30 Sept 2026Pending

22 Harley Street London W1G 9PL

External alterations to the front, side and rear elevations, and erection of a r...

26/06697/FULL
18 Sept 2026Approved

37 Harley Street London W1G 8QG

Detailed of the proposed fan coil units and service drawing plans and a method s...

26/06417/ADLBC
14 Sept 2026Pending

Harley Street Underground Car Park Queen Anne Mews London W1G 9HF

Installation of a height restriction barrier to the entrance ramp of the car par...

26/06271/FULL
7 Sept 2026Pending

129 Harley Street London W1G 6BA

Details of facade cleaning (method statement); new stone steps and balustrade; w...

26/06077/ADLBC

Nearby new applications

2 Oct 2026Pending

Flat C 25 Fitzroy Square London W1T 6ER

Various internal works, including alterations to staircase, relocation of WC on ...

2026/4276/L
14 Sept 2026Pending

Harley Street Underground Car Park Queen Anne Mews London W1G 9HF

Installation of a height restriction barrier to the entrance ramp of the car par...

26/06271/FULL
30 Sept 2026Pending

21 Westmoreland Street London W1G 8PN

Detailed drawings showing reduction in height of the terrace screening on the no...

26/06690/ADFULL
30 Sept 2026Pending

6 Upper Wimpole Street London W1G 6LG

Sample panel of brickwork; pursuant to condition 10 of planning permission dated...

26/06689/ADFULL
29 Sept 2026Pending

6 Upper Wimpole Street London W1G 6LG

Details of a sample panel of brickwork, built on site, which shows the colour, t...

26/06663/ADLBC
28 Sept 2026Pending

15 - 17 Blandford Street London W1U 3DG

Installation of an acoustic silencer to the existing kitchen extract duct at roo...

26/06630/FULL

Important details

Council
Westminster
Application type
Listed Building Consent Application
Postcode
W1G 6BQ
Received
14 Sept 2026
Validated
14 Sept 2026
Ward
Marylebone
Case officer
Show
Target decision
9 Nov 2026
Agent
Stirling Planning Limited

Decision outlook

Day 25 of the 56-day target. Westminster usually decides extensions by day 55.

Day 2531 days to the 56-day target
56%decided within 8 weeks
88%approved
1,674decided in the last year

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 1 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15225298
Planning Portal ref
PP-15225298
Comments by
28 Oct 2026
Site or press notice
7 Oct 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2018 Approved
Provision of residential shortfall accommodation.
18/06920/MOD106
2017 Approved
Details of Appendix A of the Code of Construction Practice pursuant to condition 14 of pl…
17/01695/ADFULL
2017 Approved
Detailed drawings showing i) minimum depth of 900mm between the highway and new basement…
17/01449/ADFULL
2017 Approved
Details of shortfall residential accommodation.
17/01057/MOD106
2016 Approved
Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and groun…
16/05372/FULL
2016 Approved
Demolition of mews buildings at 28 and 29 Devonshire Mews West and rear lower ground and…
16/05373/LBC
Within ~100m

Nearby activity

2025 Approved
Mezzanine 121 Harley Street London W1G 6AX
Internal alterations within the mezzanine unit, including the erection of a non-structura…
25/03920/LBC
2025 Withdrawn
Mezzanine 121 Harley Street London W1G 6AX
Internal alterations within the mezzanine unit, including the erection of a non-structura…
25/03919/FULL
2025
32 Devonshire Mews West London W1G 6QF
Replacement of all windows with timber-framed sash slimline double-glazed units; enlargem…
25/01162/FULL
2024
35 Park Crescent Mews West London W1G 7ES
Change of use of ground, lower ground and basement 1 from Class F1 to Class F1 / Class E(…
24/07901/FULL
2024
129 Harley Street London W1G 6BA
Localised replacement of floors and roof coverings; conversion of garage space to a resid…
24/07491/LBC
2024
129 Harley Street London W1G 6BA
Localised replacement of floors and roof coverings; conversion of garage space to a resid…
24/07490/FULL
2024
129 Harley Street London W1G 6BA
Reconfiguration of second floor rear room internal partitions, renewal of electrical and…
24/06851/LBC
2024
120 Harley Street London W1G 7JW
Proposed reinstatement works to revert 120 Harley Street and 114/118 Harley Street to two…
24/06293/LBC
2024
Ulster Place London
T297 - Tilia x vulgis: remove epicormic growth from stem to 5m above ground level. T294…
24/06006/TCA
2024 Approved
Flat 1 126 Harley Street London W1G 7JS
Installation of secondary glazing to front windows of lower ground floor flat.
24/04749/LBC
2024
6 Devonshire Mews West London W1G 6QE
External alterations including new front door (like for like replacement), new front step…
24/05168/FULL
2024
130 Harley Street London W1G 7JZ
Installation of two air conditioning units within acoustic enclosure to rear ground floor…
24/04910/FULL
2024
130 Harley Street London W1G 7JZ
Installation of two air conditioning units within acoustic enclosure to rear ground floor…
24/04911/LBC
2024 Approved
28 Park Crescent Mews West London W1G 7EP
Installation of an air source heat pump at roof level including part replacement of slate…
24/00245/FULL
2024 Approved
28 Park Crescent Mews West London W1G 7EP
Installation of an air source heat pump at roof level including part replacement of slate…
24/00246/LBC
2023 Approved
137 - 139 Harley Street London W1G 6BF
Internal alterations to lower ground and third floors, new and replacement ventilation an…
23/02319/LBC
2023 Approved
137 - 139 Harley Street London W1G 6BF
Provision of new and replacement plant within enclosures at rear ground floor and fourth…
23/02318/FULL
2023 Approved
132 Harley Street London W1G 7JX
Installation of internal door including replacement of existing non-original door and fir…
23/07539/LBC
2023 Approved
33 Devonshire Mews West London W1G 6QF
Erection of new roof extension to existing flat roof and alterations to front elevation a…
23/03331/FULL
2023 Approved
Ground Floor And First Floor 11 Devonshire Place London W1G 6HT
Installation of air conditioning units to the rear courtyard; renewal of M&E services and…
23/03450/LBC
2017 Withdrawn
10 Devonshire Mews West London W1G 6QE
Installation of an air conditioning unit on the roof.
17/11035/FULL
2017 Approved
Basement 10 Devonshire Place London W1G 6HS
Widening of existing openings to rear elevations facing the courtyard at basement level a…
17/09352/LBC
2017 Approved
10 Devonshire Place London W1G 6HS
Widening of existing openings to rear elevations facing the couryard at basement level an…
17/09351/FULL
2017 Approved
142-146 Harley Street London W1G 7LE
Use of third and fourth floors as medical use (Class D1) (part of a land use swap with St…
17/05226/FULL
2017 Withdrawn
15 Devonshire Mews West London W1G 6QE
Use of part of garage floorspace at ground floor level as residential accommodation in as…
17/08462/FULL
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Other 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

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.