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

26/02608/ADFULL - Approval of Details (Full PP) Approved

Proposal

Details of vertical and horizontal sections through windows and doors, vertical sections of conservatory joinery, new railings, rainwater goods (cast iron), and new coping to brickwork pursuant to condition 14 of planning permission dated 09 September 2025 (RN: ). Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
20 Apr 2026
✓
Approved
11 May 2026

Approved on 11 May 2026 · Delegated Decision · Last checked 7 Jul 2026

Documents 34

Plans & drawings 28

PDF PROPOSED LOWER GROUND FLOOR PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED GROUND FLOOR PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED FIRST FLOOR PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED SECOND FLOOR PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED THIRD FLOOR PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED FOURTH FLOOR PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED ROOF PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED NORTH ELEVATION Drawing · 20 Apr 2026 View ↗ PDF PROPOSED SOUTH ELEVATIONS Drawing · 20 Apr 2026 View ↗ PDF PROPOSED MEWS ELEVATIONS Drawing · 20 Apr 2026 View ↗ PDF MAIN HOUSE SECOND FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MAIN HOUSE THIRD FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MEWS FIRST FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MEWS GROUND FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MEWS LOWER GROUND FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF TYPICAL WINDOW AND DOOR DETAILS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MAIN HOUSE FIRST GROUND FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MAIN HOUSE FOURTH FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MAIN HOUSE GROUND FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF MAIN HOUSE LOWER GROUND FLOOR WINDOWS AND DOORS DRAWING SET Drawing · 20 Apr 2026 View ↗ PDF LINK NORTH ELEVATION Drawing · 20 Apr 2026 View ↗ PDF LINK EAST ELEVATION Drawing · 20 Apr 2026 View ↗ PDF LINK WEST ELEVATION Drawing · 20 Apr 2026 View ↗ PDF LINK PLAN Drawing · 20 Apr 2026 View ↗ PDF PROPOSED RAINWATER GOODS Drawing · 20 Apr 2026 View ↗ PDF PROPOSED STONE COPING Drawing · 20 Apr 2026 View ↗ PDF PROPOSED RAILINGS Drawing · 20 Apr 2026 View ↗ PDF CONDITION 14 DETAILED DRAWINGS COVER LETTER Background Papers · 20 Apr 2026 View ↗

All documents on the council site ↗

Associated applications 12

Site constraints 10

Grade II listed: 46-63 Chester Square Including No. 39 Eccleston Street
List entry 1357285 · The pin is inside its outline · 27 more listed buildings within 150 m (2 Grade II*, 25 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 27 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 ↗
National infrastructure project 375 m away: Thames Tideway Tunnel
The site is 375 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, the site is inside its boundary).
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 ↗
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; Public transport access: PTAL 6b (excellent), TfL 2023, for the 100 m square; 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 3 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 2

Last sold for £1,162,100 in January 2012. Terraced house, freehold.

10 January 2012£1,162,100
30 July 1996£1,050,000Leasehold

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

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Important details

Application type
Approval of Details (Full PP)
Postcode
SW1W 9EA
Received
20 Apr 2026
Validated
20 Apr 2026
Ward
Knightsbridge & Belgravia
Case officer
Show
Target decision
15 Jun 2026
Decision
Application Permitted
Decision date
11 May 2026
Decision level
Delegated Decision
Agent
Turley
Freehold owner
Show

How this decision compares

Decided in 21 days from validation, 34 days faster than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.

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 →

Consultation & key dates

Alt. reference
PP-14867532
Planning Portal ref
PP-14867532
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

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

Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.