Flat 41 2 Mansfield Street London W1G 9NF Data via plota.co.uk

26/05036/LBC - Listed Building Consent Application Approved
Listed buildingsUtility infrastructure

Proposal

Installation of external AC condenser at main roof level, associated connection to Flat 41 and associated internal modifications. (Linked with 26/05035/FULL) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
27 Jul 2026
✓
Approved
15 Sept 2026

Approved on 15 Sept 2026 · Delegated Decision · Last checked 16 Sept 2026

Documents 4

Decision & officer reports 2

PDF GRANT OF LISTED BUILDING CONSENT [PE] Decision Notice · 15 Sept 2026 View ↗ PDF DELEGATED REPORT Report · 15 Sept 2026 View ↗

Other documents 2

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 11 Aug 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 29 Jul 2026 View ↗

All documents on the council site ↗

Associated applications 2

Site constraints 9

Grade II listed: No 2 and Attached Railings No 4 and Attached Railings
List entry 1359565 · The pin is inside its outline · 49 more listed buildings within 150 m (1 Grade I, 10 Grade II*, 38 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 49 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 ↗
Article 4 direction
Article 4 Basement Development Permitted Rights Removed. Named permitted development rights are withdrawn here.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.
Archaeological priority area: City of Westminster APA 2.5
An assessment or field evaluation may be asked for before ground works.
The council or Historic England considers archaeology likely here. A desk-based assessment, and sometimes trial trenching, can be asked for with the application.
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 1748 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.

Sales history 4

Last sold for £3,905,000 in December 2024. Flat or maisonette, leasehold.

2 December 2024£3,905,000
15 November 2017£3,380,000
31 August 2000£725,000
28 January 1999£105,000

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

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Other new applications on this street

3 Jun 2026Approved

Flat 49 2 Mansfield Street London W1G 9NF

Replacement of seven windows.

26/01207/LBC
20 Aug 2026Pending

2 Mansfield Street London W1G 9NZ

Installation of full fibre cables on and through the building.

26/05715/LBC
21 Jul 2026Approved

Orbis House 5 Mansfield Street London W1G 9NG

Amendments to planning permission dated 05 September 2024 (RN: 24/01895/FULL) fo...

26/04873/NMA

Nearby new applications

3 Nov 2026Pending

226 Regent Street London W1B 3BR

Internal alterations associated with the retail fit-out of the ground floor and ...

26/07333/LBC
3 Nov 2026Pending

226 Regent Street London W1B 3BR

Display of a non-illuminated fascia sign measuring 0.28m x 1.94m and an external...

26/07334/ADV
2 Nov 2026Pending

57 Harley Street London W1G 8QS

Details of facing materials, biodiverse green roof details and management, and L...

26/07425/ADFULL
2 Nov 2026Pending

150 Great Portland Street London W1W 6QD

Installation of three air conditioning condenser units to the lower ground floor...

26/07443/FULL
29 Oct 2026Pending

Flat 6 15 Fitzhardinge Street London W1H 6EQ

Replacement of existing timber sash windows with slim double glazed timber sash ...

26/06622/FULL
29 Oct 2026Pending

Flat 6 15 Fitzhardinge Street London W1H 6EQ

Replacement of existing timber sash windows with slim double glazed timber sash ...

26/06623/LBC

Important details

Council
Westminster
Application type
Listed Building Consent Application
Postcode
W1G 9NF
Received
27 Jul 2026
Validated
27 Jul 2026
Ward
Marylebone
Case officer
Show
Target decision
21 Sept 2026
Decision
Application Permitted
Decision date
15 Sept 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Lucy Wood Architects

How this decision compares

Decided in 50 days from validation, 7 days faster than Westminster's median of 57 for listed building works. Approved, as 90% of listed building works here are.

49%decided within 8 weeks
90%approved
2,227decided in the last year

Plota live figures for listed building works decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

Last counted 16 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15090514
Planning Portal ref
PP-15090514
Comments by
9 Sept 2026
Site or press notice
19 Aug 2026
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

2017 Approved
Internal works
17/08649/LBC
Within ~100m

Nearby activity

2025
4 Queen Anne Street London W1G 9LQ
Repositioning of the plant units and new anti-vibration mounts. (Linked with 25/07282/FUL…
25/07252/LBC
2025
4 Queen Anne Street London W1G 9LQ
Variation of condition 1 of planning permission dated 22nd November 2024 (RN: 24/05074/FU…
25/07255/FULL
2025
4 Queen Anne Street London W1G 9LQ
Installation of additional anti-vibration mounts and reposition the currently approved pl…
25/07251/LBC
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
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
Flat 53 2 Mansfield Street London W1G 9NF
Alterations to the internal layout including the removal of partitions, construction of n…
25/04293/LBC
2025
10 Duchess Street London W1G 9AB
Internal alterations (in connection with the change of use approved under 24/02735/FULL a…
25/03265/LBC
2025
15 Mansfield Street London W1G 9NH
Installation of a dumbwaiter from basement to first-floor level.
25/02948/LBC
2025
Ambika House 9B Portland Place London W1B 1PS
Removal of bin store from existing location to rear yard of property; removal of existing…
25/02031/FULL
2025
15 Mansfield Street London W1G 9NH
Internal fit-out works.
25/00664/LBC
2025
17 Duchess Mews London W1G 9DU
Installation of ten PV panels and replacement of air conditioning unit with air source he…
25/00325/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
17 Duchess Mews London W1G 9DU
Variation of conditions 1,4, 5 of planning permission dated 6th August 2024 (RN 24/00210/…
24/08568/FULL
2024
17 Duchess Mews London W1G 9DU
Variation of conditions 1,4, 5 of listed building consent dated 6th August 2024 (RN 24/00…
24/08732/LBC
2024
Flat 34 2 Mansfield Street London W1G 9NF
Mounting of air source heat pump at roof level and associated cabling and connection via…
24/07905/LBC
2024
Flat 40 2 Mansfield Street London W1G 9NF
Relocation of existing air source heat pump set back an additional 2m from the roof's edg…
24/07735/FULL
2024
Flat 40 2 Mansfield Street London W1G 9NF
Relocation of existing air source heat pump set back an additional 2m from the roof's edg…
24/07736/LBC
2020 Approved
9 Mansfield Street London W1G 9NZ
Display for a temporary period of six months of a non-illuminated estate agent board atta…
20/02566/AD7
2020 Approved
3 Chandos Street London W1G 9JU
Openreach to provide approximately 20 metres of fibre optic cable via basement to custome…
20/02788/LBC
2020 Approved
46 Harley Street London W1G 9PT
Repair works and replacement of entrance bridge paving
20/02138/LBC
2020 Approved
19 Portland Place London W1B 1PX
Internal alterations.
20/00462/LBC
2020 Approved
19 Portland Place London W1B 1PX
Use of the basement, ground, first, second, third and fourth floor as educational use (Cl…
20/00461/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

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