3 Eccleston Street London SW1W 9LZ Data via plota.co.uk

26/02351/NMA - Non-material amendments Approved
Extensions & alterationsSigns & advertsUtility infrastructure

Proposal

Amendment to planning permission dated 21st May 2025 (RN ) for the Refurbishment of building, replacement of all windows at first, second and third floor level, replacement of two doors at ground floor level, removal of two existing windows on eastern elevation, new artwork on eastern elevation, installation of a plant enclosure and replacement of existing roof-top plant equipment and associated works. NAMELY, Amendments to the materiality of the secondary stair core doors which front onto the eastern elevation and installation of signage on the northern elevation. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
10 Apr 2026
✓
Approved
13 May 2026

Approved on 13 May 2026 · Delegated Decision · Last checked 7 Jul 2026

Documents 21

Decision & officer reports 2

PDF GRANT NON MATERIAL AMENDMENT Decision Notice · 13 May 2026 View ↗ PDF DELEGATED REPORT Report · 13 May 2026 View ↗

Plans & drawings 13

PDF DEMOLITION_GROUND_FLOOR_GA_PLAN-APPROVED Drawing · 10 Apr 2026 View ↗ PDF PROPOSED_GROUND_FLOOR_GA_PLAN-APPROVED Drawing · 10 Apr 2026 View ↗ PDF DEMOLITION_ELEVATIONS-APPROVED Drawing · 10 Apr 2026 View ↗ PDF PROPOSED_ELEVATIONS.-APPROVED Drawing · 10 Apr 2026 View ↗ PDF DEMOLITION GROUND FLOOR GA PLAN (MARKUP REMOVED) Drawing · 10 Apr 2026 View ↗ PDF PROPOSED GROUND FLOOR GA PLAN (MARKUP REMOVED) Drawing · 10 Apr 2026 View ↗ PDF DEMOLITION ELEVATIONS (MARKUP REMOVED) Drawing · 10 Apr 2026 View ↗ PDF PROPOSED ELEVATIONS (MARKUP REMOVED) Drawing · 10 Apr 2026 View ↗ PDF DEMOLITION GROUND FLOOR GA PLAN Drawing · 10 Apr 2026 View ↗ PDF PROPOSED GROUND FLOOR GA PLAN Drawing · 10 Apr 2026 View ↗ PDF DEMOLITION ELEVATIONS Drawing · 10 Apr 2026 View ↗ PDF PROPOSED ELEVATIONS Drawing · 10 Apr 2026 View ↗ PDF ENTRANCE Drawing · 10 Apr 2026 View ↗

Application forms 2

PDF APPLICATIONFORMREDACTED Application Form · 10 Apr 2026 View ↗ PDF FEECALCULATION Background Papers · 10 Apr 2026 View ↗

Other documents 4

PDF ACK - NON-MATERIAL AMENDMENT Background Papers · 17 Apr 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 15 Apr 2026 View ↗ PDF ATTACHMENTSUMMARY Background Papers · 10 Apr 2026 View ↗ PDF COVER LETTER NMA - FACADE CHANGES Background Papers · 10 Apr 2026 View ↗

All documents on the council site ↗

Associated applications 5

Site constraints 11

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 ↗
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.
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 399 m away: Thames Tideway Tunnel
The site is 399 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, 14 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 ↗
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.
14 listed buildings within 150 m
Nearest: 126-158, Buckingham Palace Road, Grade II, 36 m away · 14 Grade II
The site itself is not listed. 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 all 14 with distances
Historic England ↗
Opportunity area
Where the London Plan expects significant growth.
Boundaries are indicative and the borough holds the detailed plan.
Also on the record
Registered park or garden 168 m away: The Grosvenor Estate: Chester Square; 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 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.

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Important details

Council
Westminster
Application type
Non-material amendments
Postcode
SW1W 9LZ
Received
10 Apr 2026
Validated
10 Apr 2026
Ward
Knightsbridge & Belgravia
Case officer
Show
Target decision
8 May 2026
Decision
Application Permitted
Decision date
13 May 2026
Decision level
Delegated Decision
Agent
Newmark

How this decision compares

Decided in 33 days from validation, 22 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-14798660
Planning Portal ref
PP-14798660
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2025
Details, including photographs of samples and/or manufacturer specifications, of the faci…
25/08264/ADFULL
2025
Details, including photographs of samples and/or manufacturer specifications, of the faci…
25/06578/ADFULL
2025
Details, including photographs of samples and/or manufacturer specifications, of the faci…
25/06577/ADFULL
Within ~100m

Nearby activity

2025
12A Eccleston Street London SW1W 9LT
Installation of two wall mounted condenser units between rear lower ground and ground flo…
25/07412/FULL
2025 Approved
The Garden House 6 Eccleston Place London SW1W 9NE
External alterations, including installation of condenser units, lighting and replacement…
25/05406/LBC
2025
Basement And Ground Floor Maisonette 101 Ebury Street London SW1W 9QU
Removal of existing rear extension and replacement extension at ground floor level; incor…
25/06748/LBC
2025
Basement And Ground Floor Maisonette 101 Ebury Street London SW1W 9QU
Removal of existing rear extension and replacement extension at ground floor level and in…
25/06747/FULL
2025
110 Buckingham Palace Road London SW1W 9NE
Display of an non illuminated A-board sign measuring 0.58m X 1m
25/06460/ADV
2025
Eccleston Street Post Office 6 Eccleston Street London SW1W 9LS
Change of use from Class E (Commercial) to a mixed use of public house on the lower groun…
25/06468/FULL
2025 Approved
77 - 79 Ebury Street London SW1W 0NZ
Display of externally illuminated projecting sign measuring 0.7m x 0.5m, externally illum…
25/04538/ADV
2025 Approved
33 Eccleston Street London SW1W 9NS
Display of cross street lighting swags made of static LED lights measuring 12m x 2m along…
25/03218/ADV
2025 Approved
60 Ebury Street London SW1W 9QD
2 x olive trees (T1 & T2, rear garden): Reduce crowns by approximately 1.5 m, back to the…
25/04345/TCA
2025 Approved
14 Eccleston Street London SW1W 9LT
Variation of Condition 1 of planning permission dated 25 October 2024 (RN: 24/05169/FULL)…
25/01940/FULL
2025
81 Ebury Street London SW1W 9QU
Display of non illuminated fascia sign measuring 2.55m X 0.5m
25/02349/ADV
2025
110 Buckingham Palace Road London SW1W 9NE
Installation of one new air source heat pump.
25/01739/FULL
2025
128 Buckingham Palace Road London
Internal alterations including relocation of existing floor boxes; Installation of new pe…
25/01450/LBC
2025
8 Ebury Mews London SW1W 9NX
Gleditsia: Reduce tree by approx 1.5m in all aspects to allow more light into the gardens…
25/00233/TCA
2024 Approved
11A Eccleston Street London SW1W 9LX
Installation of one air conditioning units at rear elevation.
24/06968/FULL
2024
Radstock House 3 Eccleston Street London SW1W 9LZ
Refurbishment of building, replacement of all existing windows at first, second and third…
24/08110/FULL
2024
60 Ebury Street London SW1W 9QD
T1 - Olea europaea (Olive) & T2 - Olea europaea (Olive): PRS - Prune from adjacent struct…
24/07775/TCA
2024
65 - 69 Ebury Street London SW1W 0NZ
Installation of replacement extract duct to rear of building and associated works.
24/07275/FULL
2024 Approved
Basement And Ground Floor 20 Eccleston Street London SW1W 9LT
Installation of internally illuminated fascia sign 0.20m x 0.64m and hanging sign 0.50m x…
24/06036/ADV
2024
9 Eccleston Street London SW1W 9LX
Installation of two air source heat pump units to rear flat roof at first floor (also 7 E…
24/06085/FULL
2020 Approved
31 Eccleston Place London SW1W 9NF
Display of a mural to the front and side elevation for a temporary period.
20/06346/ADV
2020 Approved
103A Ebury Street London SW1W 9QU
Replacement of rear windows with double glazed timber sash windows; alterations to extern…
20/04195/LBC
2020 Approved
103A Ebury Street London SW1W 9QU
Replacement of rear windows with double glazed timber sash windows; alterations to extern…
20/04194/FULL
2020 Refused
3 Ebury Mews London SW1W 9NX
Demolition of pitched roof and dormers and replacement with a new part mansard roof exten…
20/04290/FULL
2020 Approved
Retail Unit 2 98 Buckingham Palace Road London SW1W 0SS
Use of an area of the public highway measuring 8.9m x 0.9m for the placing of five tables…
20/04212/TCH
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