40 Grosvenor Place London SW1X 7HJ Data via plota.co.uk

26/06234/FULL - Full Planning Permission Application Pending
Change of useCommercial premises

Proposal

Use of lower ground floor of Unit 3 and ground floor of Unit 2 as gym (Class E(d)) and/ or office (Class E(g)) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
11 Sept 2026
Decision
Expected by 6 Nov 2026

Under consideration

No decision has been issued yet. Plota predicts a decision between 4 Nov 2026 and 15 Nov 2026, from Westminster's recent changes of use.

The consultation period closed on 21 Oct 2026.

Documents 10

Plans & drawings 8

PDF EXISTING GROUND FLOOR PLAN - UNIT 2 Drawing · 11 Sept 2026 View ↗ PDF PROPOSED GROUND FLOOR PLAN - UNIT 2 Drawing · 11 Sept 2026 View ↗ PDF EXISTING LOWER GROUND FLOOR PLAN - MANGO TREE Drawing · 11 Sept 2026 View ↗ PDF PROPOSED LOWER GROUND FLOOR - UNIT 2 Drawing · 11 Sept 2026 View ↗ PDF BLOCK PLAN Location Plan · 11 Sept 2026 View ↗ PDF SITE PLAN FOR CHANGE OF USE - MANGO TREE LGF Drawing · 11 Sept 2026 View ↗ PDF SITE PLAN FOR CHANGE OF USE - UNIT 2 GROUND FLOOR Drawing · 11 Sept 2026 View ↗ PDF LOCATION PLAN FOR CHANGE OF USE Location Plan · 11 Sept 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 11 Sept 2026 View ↗

Other documents 1

PDF COVER LETTER Background Papers · 11 Sept 2026 View ↗

All documents on the council site ↗

Site constraints 12

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 Named permitted development rights are withdrawn here.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.
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 ↗
Registered park or garden 36 m away: Buckingham Palace
Its setting is a consideration for work nearby.
Registered parks and gardens, battlefields, world heritage sites and protected wrecks are designated heritage assets: harm needs clear and convincing justification.
Historic England ↗
Habitat network: Network Enhancement Zone 2
Where habitat is joined up enough to work as a network. Context, not a constraint on its own.
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.
National infrastructure project 869 m away: Thames Tideway Tunnel
The site is 869 m from the project boundary. Waste water treatment, decided. The project page says whether consent was granted. Also within 2 km: London Strategic Heat Main Project (at pre-application, 276 m).
Nationally significant infrastructure projects (power stations, electricity lines, pipelines, major roads and railways, harbours, airports and reservoirs) are consented by a Secretary of State under the Planning Act 2008, after an examination by the Planning Inspectorate, rather than by the council. The boundary is the one the Inspectorate consults on and can change as the scheme does. Projects are shown within 2 km of the site.
Planning Inspectorate project page ↗
Also on the record
Conservation area 27 m away: Royal Parks; 18 listed buildings within 150 m; Inside the City of Westminster built-up area; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; Priority habitat 43 m away: Deciduous woodland; Designated open space 43 m away.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

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 area2,864 m² (30,828 sq ft)
Energy ratingB (asset rating 48)
UseB1 Offices and Workshop businesses
HeatingAir Conditioning

From the energy performance certificate lodged in October 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
Full Planning Permission Application
Postcode
SW1X 7HJ
Received
11 Sept 2026
Validated
11 Sept 2026
Ward
Knightsbridge & Belgravia
Case officer
Show
Target decision
6 Nov 2026
Agent
Montagu Evans LLP

Decision outlook

Day 47 of the 56-day target. Westminster usually decides changes of use by day 57.

Day 4710 days to the predicted decision (day 57)
49%decided within 8 weeks
83%approved
172decided in the last year

Plota live figures for changes of use decided by Westminster in the last twelve months, from validation. Westminster decision record →

Public comments

No public comments yet.

13 neighbours consulted · Last counted 26 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15202651
Planning Portal ref
PP-15202651
Comments by
21 Oct 2026
Site or press notice
30 Sept 2026
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2025
Works at lower ground floor including the replacement of glass with louvre in one window…
25/07078/FULL
2025
Works at lower ground floor including excavation works for extension of lift pit and crea…
25/06529/FULL
2025 Approved
Works at lower ground floor including excavation works for extension of lift pit and crea…
25/02927/FULL
2025 Approved
Variation of Condition 1 of planning permission dated 06 June 2019 (RN: 19/02319/FULL) fo…
25/02716/FULL
2025 Approved
Change of use from offices (except for identified parts of the ground and lower ground fl…
25/01851/CLOPUD
2025
Installation of emergency standby generator and two quench pipe outlets and other associa…
25/03018/FULL
2025
Installation of three replacement boiler flues at roof level.
25/03017/FULL
2025
Change of use of ground floor from restaurant (Class E(b)) to office use (Class E(g)).
25/01325/FULL
2024 Approved
Use of ground floor as office (Class E(g)) (Unit 1).
24/02264/FULL
2024 Approved
Use of ground floor as restaurant/cafe (Class E(b)) and lower ground floor as office use…
24/02263/FULL
2024
Replacement of existing plant equipment, installation of new plant equipment and ducting…
24/02431/FULL
2024 Approved
Amendments to planning permission dated 14 November 2016 (RN:16/07057/FULL) for Variation…
24/00967/NMA
2024 Approved
Amendments to planning permission dated 05 September 1996 (RN 96/03044/FULL) for redevelo…
24/00966/NMA
2024 Withdrawn
Amendments to planning permission dated 5th September 1996 (96/03044/FULL) for: Redevelop…
24/00645/NMA
2024 Refused
Change of use of the existing retail and restaurant units at lower ground and ground floo…
24/00375/CLOPUD
2016 Approved
Variation of Condition 6 of planning permission dated 11 March 2014 (RN:13/10890) for the…
16/07057/FULL
2016 Approved
Alterations to the loading bay door on the Wilton Street elevation.
16/00844/FULL
Within ~100m

Nearby activity

2025
The Lanesborough Hotel 1 Lanesborough Place London SW1X 7TA
Replacement of existing external platform lift with a new external platform lift. (Linked…
25/07655/FULL
2025
Forbes House 10 Halkin Street London SW1X 7DS
T1) London Plane - Reduce back to previous reduction points As part of continued, regular…
25/06683/TPO
2025 Approved
The Lanesborough Hotel 1 Lanesborough Place London SW1X 7TA
Installation of an external cigar lounge structure on hardstanding at rear of hotel for t…
25/02675/FULL
2025
6 - 7 Grosvenor Place London
Variation of Conditions 1,18, 20, 22, and 23 of planning permission dated 4th June 2019 (…
25/01675/FULL
2025
6 - 7 Grosvenor Place London
Provision of plant and enclosure at second floor; provision of an opening to the third-fl…
25/01668/LBC
2024
The Lanesborough Hotel 1 Lanesborough Place London SW1X 7TA
Display of an internally illuminated double sided bus-stop digital advertisement screen m…
24/07966/ADV
2024
Bus Shelter 13 Outside Lanesborough Hotel Knightsbridge London
Display of an internally illuminated double sided bus-stop digital advertisement screen m…
24/07965/ADV
2024
The Lanesborough Hotel 1 Lanesborough Place London SW1X 7TA
Internal works of refurbishment to the Presidential Suite across six interconnecting room…
24/05588/LBC
2024
The Lanesborough Hotel 1 Lanesborough Place London SW1X 7TA
Alterations to existing terraces and creation of two enlarged terraces including new sash…
24/05586/LBC
2024
The Lanesborough Hotel 1 Lanesborough Place London SW1X 7TA
Installation of external canopy above the Garden Room and refurbishment of the Garden Roo…
24/05477/LBC
2024
Halkin Street Garden Halkin Street London
T8 - Cerasus serrula:Fell ground level - declining cherry to facilitate replacement.Plant…
24/04310/TCA
2024
The Lanesborough Hotel 1 Lanesborough Place London SW1X 7TA
Installation of external canopy above the Garden Room and refurbishment of the Garden Roo…
24/04118/FULL
2023 Approved
Flat A 1 Halkin Street London SW1X 7DJ
Removal of 37sqm of asbestos textured coating from solid walls.
23/08628/CLLB
2023 Approved
8 - 9 Grosvenor Place London SW1X 7SH
Installation of scaffold fixings and for masonry cleaning and repairs to the building, in…
23/01812/LBC
2023
39 Headfort Place London SW1X 7DE
Commencement of planning permission granted on 25th September 2020 (RN: 20/03347/FULL) fo…
23/05874/CLOPUD
2023
40-46 Headfort Place London SW1X 7DH
External alterations to the front and rear facades including replacement windows, install…
23/05814/FULL
2023 Approved
Development Site At 1 - 5 Grosvenor Place London SW1X 7HJ
Replace doors along Grosvenor Place with fixed glass panel.
23/03917/FULL
2023 Approved
1 Knightsbridge London SW1X 7LX
External works to Grosvenor Crescent entrance including replacement of existing revolving…
23/01819/FULL
2023
8 - 9 Grosvenor Place London SW1X 7SH
Internal alterations including the removal and installation of partitions, the insertion…
23/02814/LBC
2023
8 - 9 Grosvenor Place London SW1X 7SH
Change of use to provide event space, flexible workspace and wellbeing areas (Sui Generis…
23/02813/FULL
2017 Approved
1 Lanesborough Place London SW1X 7TA
Refurbishment of garden room (smoking shelter) at the lower ground floor rear of The Lane…
17/00157/LBC
2017 Approved
3 Halkin Street London SW1X 7DJ
Installation of secondary glazing on all windows of front elevation on upper floors.
17/00808/LBC
2016 Approved
3 Halkin Street London SW1X 7DJ
Installation of secondary glazing to the front elevation windows at Ground floor level.
16/09031/LBC
2016 Approved
3 Halkin Street London SW1X 7DJ
Installation of secondary glazing to the front elevation windows at the basement level.
16/09023/LBC
2016 Refused
Basement Ground Floor And Maisonette 3 Halkin Street London SW1X 7DJ
Installation of secondary glazing to front elevation windows.
16/08296/LBC
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.