47 Chester Square London SW1W 9EA Data via plota.co.uk

26/04763/NMA - Non-material amendments Pending

Proposal

Amendments to planning permission dated 11 June 2026 () for: demolition of No 47 Ebury Mews and the erection of a two-storey replacement mews building with new basement level. Alterations and refurbishment to No. 47 Chester Square including demolition of modern rear additions, reinstatement of lower ground floor lightwell to the rear and extension of existing lower ground floor. Construction of ground floor link from 47 Chester Square to 47 Ebury Mews, consolidation of amenity courtyard at ground floor level, other internal and external works of refurbishment to 47 Chester Square namely, to allow alterations to link structure between the main house and mews design, and the rear roof profile to the main house. (Linked with 26/04756/LBC) Data via plota.co.uk

View original council record ↗Last checked

Application progress

Received
16 Jul 2026
Decision
Expected by 13 Aug 2026

This application is under consideration - no decision has been issued yet. Plota predicts a decision around 14 Sept 2026, from Westminster's recent demolitions.

Associated applications 7

Site constraints 8

Grade II listed: 42-45, CHESTER SQUARE SW1 (See details for further address information)
List entry 1219286 · 26 m from the pin · 23 more listed buildings within 150 m (1 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 23 with distances
Historic England ↗
Belgravia 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 Named permitted development rights are withdrawn here.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 3.2
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 ↗
Registered park or garden 25 m away: The Grosvenor Estate: Chester Square
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 ↗
Also on the record
Inside the City of Westminster built-up area; Tree preservation order 25 m away: W9_A1.
Not affected
Outside flood zones 2 and 3 · Not green belt · No scheduled monument at the site

Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.

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Important details

Application type
Non-material amendments
Postcode
SW1W 9EA
Received
16 Jul 2026
Validated
16 Jul 2026
Ward
Knightsbridge & Belgravia
Case officer
Show
Target decision
13 Aug 2026
Agent
Turley

Decision outlook

Day 60, past the statutory target. 82% of demolitions in Westminster are decided within thirteen weeks, which runs to 15 Oct 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 12 Sept 2026.

Day 604 days past the 56-day target
51%decided within 8 weeks
90%approved
75decided in the last year

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

Public comments

No public comments yet.

Last counted 12 Sept 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-15085978
Env. assessment
No
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