4 Marylebone Mews London W1G 8PY Data via plota.co.uk

26/04440/LBC - Listed Building Consent Application Pending
Extensions & alterationsListed buildings

Proposal

Internal refurbishment including replacement of glazing to windows, clerestory, rooflights, entrance door and sidelights and minor external alterations. [Linked to 26/04439/FULL] Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
3 Jul 2026
Decision
Target date was 28 Aug 2026

Under consideration

No decision has been issued yet. Plota predicted a decision around 6 Nov 2026; it is now day 126.

The consultation period closed on 26 Aug 2026.

Documents 1

Other documents 1

PDF RECEIPT OF APPLICATION Other · 7 Jul 2026 View ↗

All documents on the council site ↗

Associated applications 2

Site constraints 9

Grade II listed: 4, Marylebone Mews W1
List entry 1239814 · The pin is inside its outline · 62 more listed buildings within 150 m (1 Grade II*, 61 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 62 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 Named permitted development rights are withdrawn here.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.
Also on the record
National infrastructure project 1892 m away: Thames Tideway Tunnel; Inside the City of Westminster built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square; Town centre 56 m away: Marylebone High Street.
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.

Sales history 1

Last sold for £4,350,000 in January 2025. Terraced house, leasehold.

6 January 2025£4,350,000

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

Building

Floor area269 m² (2,895 sq ft)
Energy ratingD (56 out of 100), could reach B
PropertyMid-terrace house, 4 habitable rooms
Built1930 to 1949
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in March 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
Listed Building Consent Application
Postcode
W1G 8PY
Received
3 Jul 2026
Validated
3 Jul 2026
Ward
Marylebone
Case officer
Show
Target decision
28 Aug 2026
Applicant
Show
Agent
GCAD

Decision outlook

Day 126, past the statutory target. 83% of extensions in Westminster are decided within thirteen weeks; extensions of time are common, and the council need not decide on the day. Last seen undecided on 4 Nov 2026.

Day 12670 days past the 56-day target
56%decided within 8 weeks
88%approved
1,937decided 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 4 Nov 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15060001
Planning Portal ref
PP-15060001
Comments by
26 Aug 2026
Site or press notice
5 Aug 2026
Env. assessment
No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025
44 Welbeck Street London W1G 8DY
Repositioning of third-floor kitchenette door; Installation of a fire door and associated…
25/08107/LBC
2025
58 Queen Anne Street London W1G 8HW
Minor internal alterations to the building involving the introduction of double doors at…
25/08051/LBC
2025
45 New Cavendish Street London W1G 9TJ
Internal alterations at ground and lower ground level including reinstatement of staircas…
25/07902/LBC
2025
45 New Cavendish Street London W1G 9TJ
Use of part of the lower ground floor for retail purposes (Class E). (Linked with 25/0790…
25/07901/FULL
2025 Approved
Hahnemann House 32 Welbeck Street London W1G 8EU
Display for a temporary period of six months of a non-illuminated 'to let' board attached…
25/06276/AD7
2025
17 New Cavendish Street London W1G 9UA
Variation of condition 2 of planning permission dated 12th February 1998 (RN:97/05508/FUL…
25/06483/FULL
2025
45 Welbeck Street London W1G 8DZ
Replacement of windows with slimline double glazing windows and associated works.
25/06314/FULL
2025
Hahnemann House 32 Welbeck Street London W1G 8EU
Installation of CCTV to front entrance and rear emergency exit. (Retropsective) Linked wi…
25/06098/LBC
2025
Hahnemann House 32 Welbeck Street London W1G 8EU
Installation of CCTV to front entrance and rear emergency exit. (Retrospective) Linked wi…
25/06097/FULL
2025
45 Welbeck Street London W1G 8DZ
Replacement of windows with slimline double glazing windows and associated works. (Linked…
25/05979/LBC
2025 Approved
58 Queen Anne Street London W1G 8HW
Minor internal alterations to replace the existing asbestos doors in the building
25/03879/LBC
2025 Refused
Hahnemann House 32 Welbeck Street London W1G 8EU
Installation of CCTV to front entrance and rear emergency exit. (Retrospective, linked wi…
25/04216/FULL
2025 Refused
Hahnemann House 32 Welbeck Street London W1G 8EU
Installation of CCTV to front entrance and rear emergency exit. ((Retrospective, Linked w…
25/04217/LBC
2025 Approved
69 Wimpole Street London W1G 8AS
Installation of 2no. wall mounted air source heat pumps within an acoustic enclosure at r…
25/03649/FULL
2025 Approved
69 Wimpole Street London W1G 8AS
Installation of 2no. air source heat pumps within an acoustic enclosure.
25/03650/LBC
2025 Approved
3 Bulstrode Street London W1U 2JB
Internal works to re-configure the existing apartment including the removal of an existin…
25/01841/LBC
2025
11 Marylebone Mews London W1G 8PX
Creation of an additional floor via the erection of a mansard roof and extension of an ex…
25/03462/FULL
2025
50 Queen Anne Street London W1G 9LA
Installation of new air source heat pump to existing plant enclosure to rear roof; format…
25/02536/LBC
2025
50 Queen Anne Street London W1G 9LA
Installation of new air source heat pump to existing plant enclosure and roof light to re…
25/02535/FULL
2025
Basement And Ground Floor 45 Welbeck Street London W1G 8DZ
Internal alterations at ground and lower ground floor.
25/02269/LBC
2020 Approved
60 Queen Anne Street London W1G 8HP
Display for a temporary period of six months of a non-illuminated estate agent board loca…
20/06880/AD7
2020 Refused
12 Marylebone Mews London W1G 8PX
Installation of an acoustic enclosure containing two air conditioning condensers to rear…
20/06911/FULL
2020 Refused
12 Marylebone Mews London W1G 8PX
Alterations to front facade at ground level including replacement of existing garage door…
20/07001/FULL
2020 Approved
22 Welbeck Street London W1G 8EF
Installation of two air conditioning units within rear lightwell and two air conditioning…
20/06475/FULL
2020 Approved
22 Welbeck Street London W1G 8EF
Installation of two air conditioning units within rear lightwell and two air conditioning…
20/06476/LBC
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

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

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.