4 Devonshire Close London W1G 7BA Data via plota.co.uk

25/08775/ADFULL - Approval of Details (Full PP) Approved
Admin / procedural

Proposal

Details of Whole Life Carbon Assessment pursuant to condition 7 (part 1) of planning permission dated 19 November 2025 (RN: ) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
2 Dec 2025
✓
Approved
5 Mar 2026

Approved on 5 Mar 2026 · Delegated Decision · Last checked 3 Oct 2026

Documents 6

Decision & officer reports 2

PDF APPR. OF DETAILS-FULL RESMAT [PE] Decision Notice · 5 Mar 2026 View ↗ PDF DELEGATED REPORT Report · 5 Mar 2026 View ↗

Statements & assessments 1

PDF 4 DEVONSHIRE CLOSE - LIFE CYCLE CARBON ASSESSMENT - PRE COMMENCEMENT - REV A Other · 2 Dec 2025 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 2 Dec 2025 View ↗

Other documents 2

PDF ACK-APPROVAL OF DETAILS APPL. Background Papers · 21 Feb 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 16 Feb 2026 View ↗

All documents on the council site ↗

Associated applications 6

Site constraints 10

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 Named permitted development rights are withdrawn here.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 ↗
48 listed buildings within 150 m
Nearest: 104, Harley Street W1, Grade II, 6 m away · 1 Grade I, 12 Grade II*, 34 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 48 with distances
Historic England ↗
Scheduled monument 98 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 ↗
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
Registered park or garden 178 m away: Regent's Park; National infrastructure project 458 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.
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.

Sales history 6

Last sold for £4,100,000 in September 2024. Terraced house, leasehold.

More than one property is recorded at this address: HM Land Registry does not always give the flat or unit.

27 May 2026£7,813Other property, freehold. A nominal price
20 September 2024£4,100,000
25 February 2021£12,500,000Other property. Recorded as a transfer outside a standard sale
27 February 2006£1,800,000
8 May 2001£860,000
20 March 1995£391,000

Sale prices from HM Land Registry's price paid record, matched to this application by its address.

Building

Floor area166 m² (1,787 sq ft)
Energy ratingD (60 out of 100), could reach B
PropertyMid-terrace house, 5 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

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

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Other new applications on this street

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Important details

Council
Westminster
Application type
Approval of Details (Full PP)
Postcode
W1G 7BA
Received
2 Dec 2025
Validated
2 Dec 2025
Ward
Marylebone
Case officer
Show
Target decision
27 Jan 2026
Decision
Application Permitted
Decision date
5 Mar 2026
Decision level
Delegated Decision
Applicant
Show
Agent
hgh Consulting

Public comments

No public comments yet.

Last counted 3 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14534700
Planning Portal ref
PP-14534700
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2025
Substantial demolition of the building including the replacement of the front elevation a…
25/04318/FULL
Within ~100m

Nearby activity

2025
1 Devonshire Close London W1G 7BA
Erection of a mansard roof extension at second floor level and alterations to the front a…
25/08126/FULL
2025
93 Harley Street London W1G 6AD
Installation of X2 external signage plaques
25/07419/LBC
2025 Refused
1 Devonshire Close London W1G 7BA
Erection of a mansard roof extension at second floor level and alterations to the front a…
25/05262/FULL
2025 Approved
1 Devonshire Close London W1G 7BA
Erection of a single storey mansard roof extension and extensions at rear ground and firs…
25/05261/FULL
2025 Approved
90 Harley Street London W1G 7HS
Replacement of existing plant at second floor roof level and installation of a 1.5m high…
25/05625/LBC
2025 Refused
90 Harley Street London W1G 7HS
Replacement of existing plant at second floor roof level and installation of a 1.5m high…
25/05624/FULL
2025
120 Harley Street London W1G 7JW
Internal and external alterations in connection with the installation of plant, structura…
25/06392/LBC
2025
120 Harley Street London W1G 7JW
Internal and external alterations in connection with the installation of plant, structura…
25/06391/FULL
2025
110 Harley Street London W1G 7JG
Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus to a Listed Bu…
25/06888/TELNOT
2025 Approved
99 Harley Street London W1G 6AQ
Repairs and rebuilding of front elevation at second and third floor level including alter…
25/04811/LBC
2025 Withdrawn
99 Harley Street London W1G 6AQ
Repairs and rebuilding of front elevation at second and third floor level including alter…
25/04810/FULL
2025 Approved
63 - 65 Portland Place London W1B 1QR
Use the ground and first floor of 43 Devonshire Close for residential purposes and use of…
25/02758/FULL
2025
10 Devonshire Close London W1G 7BA
Variation of condition 1 and 9 of planning permission dated 17th November 2021 (RN:21/030…
25/02293/FULL
2025
106 Harley Street London W1G 7JE
Installation of seven air conditioning units to rear ground floor level. (Retrospective)…
25/01394/LBC
2025
106 Harley Street London W1G 7JE
Installation of seven air conditioning units to rear ground floor level. (Retrospective)…
25/01393/FULL
2025
113 - 115 Harley Street London W1G 6AP
Installation of replacement steel vent pipe (Linked with 25/01123/FULL).
25/01124/LBC
2025
113 - 115 Harley Street London W1G 6AP
Installation of replacement steel vent pipe (Linked with 25/01124/LBC).
25/01123/FULL
2025
9 Devonshire Close London W1G 7BA
Conversion of existing garage works including removal of existing timber garage doors, in…
25/00062/FULL
2024
2 Devonshire Close London W1G 7BA
Removal and replacement of existing mansard roof with single dormer and replacement mansa…
24/06487/FULL
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
2018 Approved
99B Devonshire Mews South London W1G 6QR
Replacement of the existing windows at second floor to front and rear elevation with doub…
18/10577/LBC
2018 Approved
99B Devonshire Mews South London W1G 6QR
Replacement of the existing windows at second floor to front and rear elevation with doub…
18/10576/FULL
2018 Approved
43 Devonshire Street London W1G 7AL
Removal of an existing metal escape staircase to the rear of the building at second, thir…
18/09803/LBC
2018 Withdrawn
63-65 Portland Place London W1B 1QS
Use of 63-65 Portland Place for educational purposes (Class D1) for a temporary period of…
18/07503/FULL
2018 Withdrawn
63-65 Portland Place London W1B 1QS
Removal of Condition 5 of planning permission dated 11 June 2002 (RN: 01/10409) for use o…
18/07593/FULL
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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.