21 Grosvenor Place London SW1X 7HN Data via plota.co.uk

26/03167/FULL - Full Planning Permission Application Approved
Extensions & alterations

Proposal

Installation of two external porticos, one fronting Grosvenor Place and one fronting Chester Street, and associated external access ramp and planter to Grosvenor Place frontage. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
13 May 2026
✓
Approved
20 Jul 2026

Approved on 20 Jul 2026 · Delegated Decision · Last checked 21 Jul 2026

Documents 27

Decision & officer reports 2

PDF GRANT OF FULL PP [PE] Decision Notice · 20 Jul 2026 View ↗ PDF DELEGATED REPORT Report · 20 Jul 2026 View ↗

Statements & assessments 1

PDF DESIGN & ACCESS STATEMENT Design and Access Statement · 13 May 2026 View ↗

Plans & drawings 11

PDF EXISTING & DEMOLITION GROUND FLOOR PLAN Drawing · 13 May 2026 View ↗ PDF EXISTING & DEMOLITION SOUTH EAST ELEVATION Drawing · 13 May 2026 View ↗ PDF EXISTING & DEMOLITION NORTH EAST ELEVATION Drawing · 13 May 2026 View ↗ PDF EXISTING & DEMOLITION EAST-WESY SECTION LOOKING SOUTH NORTH-SOUTH SECTION LOOKIN Drawing · 13 May 2026 View ↗ PDF PROPOSAL GROUND FLOOR PLAN Drawing · 13 May 2026 View ↗ PDF PROPOSAL SOUTH EAST ELEVATION Drawing · 13 May 2026 View ↗ PDF PROPOSAL NORTH EAST ELEVATION Drawing · 13 May 2026 View ↗ PDF PROPOSAL EAST-WEST SECTION LOOKING SOUTH NORTH SOUTH SECTION LOOKING WEST Drawing · 13 May 2026 View ↗ PDF FACADE GROSVENOR PLACE PROPOSED Drawing · 13 May 2026 View ↗ PDF FACDE CHESTER STREET PROPOSED Drawing · 13 May 2026 View ↗ PDF SITE LOCATION PLAN Location Plan · 13 May 2026 View ↗

Application forms 1

PDF APPLICATION FORM REDACTED Application Form · 13 May 2026 View ↗

Consultation & comments 3

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 26 Jun 2026 View ↗ PDF ECNSLT-STD EXT CONSULTEES Background Papers · 8 Jun 2026 View ↗ PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 8 Jun 2026 View ↗

Other documents 9

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 8 Jun 2026 View ↗ PDF ECNSLT-INTERNAL CONSULTS Background Papers · 8 Jun 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 8 Jun 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 8 Jun 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 8 Jun 2026 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 8 Jun 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 19 May 2026 View ↗ PDF ATTACHMENT SUMMARY Background Papers · 13 May 2026 View ↗ PDF COVER LETTER - 21 GROSVENOR PLACE Background Papers · 13 May 2026 View ↗

All documents on the council site ↗

Site constraints 10

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 ↗
24 listed buildings within 150 m
Nearest: 2-7 Chester Street, Grade II, 14 m away · 1 Grade I, 2 Grade II*, 21 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 24 with distances
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.
Registered park or garden 65 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 ↗
Conservation area 9 m away: Belgravia
The edge of the area; work outside it can still affect its setting.
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 ↗
National infrastructure project 992 m away: Thames Tideway Tunnel
The site is 992 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, 279 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
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 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.

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Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
SW1X 7HN
Received
13 May 2026
Validated
13 May 2026
Ward
Knightsbridge & Belgravia
Case officer
Show
Target decision
8 Jul 2026
Decision
Application Permitted
Decision date
20 Jul 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Newmark

How this decision compares

Decided in 68 days from validation, 13 days slower than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.

56%decided within 8 weeks
88%approved
1,688decided 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-14878984
Planning Portal ref
PP-14878984
Comments by
8 Jul 2026
Site or press notice
17 Jun 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

2024
Partial infill of the existing lightwell to create additional Class E (Commercial, Busine…
24/01251/FULL
Within ~100m

Nearby activity

2025
38 Chapel Street London SW1X 7DD
Erection of a mansard extension at fifth floor level.
25/06851/FULL
2025
10 Chapel Street London SW1X 7BY
Erection of a basement extension, replacement of the existing conservatory at rear lower…
25/01535/FULL
2025
19 Grosvenor Place London SW1X 7HN
Carry out repairs to all masonry elements subject to inspection from scaffolding; remedia…
25/01243/LBC
2025
18 Chapel Street London SW1X 7BY
Erection of rear extensions at lower ground floor and ground floor rear extensions with t…
25/00908/LBC
2025
18 Chapel Street London SW1X 7BY
Erection of rear extensions at lower ground floor and ground floor rear extensions with t…
25/00907/FULL
2024
19 Chapel Street London SW1X 7BY
(T1) - Magnolia(M.soulangea) -reduce lateral spread over LHS No.18 & from neighbouring ga…
24/06462/TCA
2024
12 Chester Street London SW1X 7BB
Excavation of a new basement level. Replacement of existing rear extension at first, seco…
24/05883/FULL
2024
12 Chester Street London SW1X 7BB
Excavation of a new basement level. Replacement of existing rear extension at first, seco…
24/05884/LBC
2024 Approved
2 Chester Street London SW1X 7BB
Installation of a new electrical riser to the common parts staircase.
24/02540/LBC
2024
36 Chapel Street London SW1X 7DD
Creation of a bike storage lean-to enclosure to the front of the property at lower ground…
24/01563/LBC
2024
36 Chapel Street London SW1X 7DD
Creation of a bike storage lean-to enclosure in front lower ground lightwell. Creation of…
24/01566/FULL
2021 Approved
5 Chester Street London SW1X 7BB
2 x London plane : reduce the height of the trees by 7 meters below the most recent reduc…
21/02019/TCA
2023 Refused
10 Chapel Street London SW1X 7BY
Erection of a basement extension to accommodate a pool, replacement of the existing conse…
23/07302/FULL
2022 Refused
14 Chapel Street London SW1X 7BY
Excavation of a new basement level, single storey rear extension at lower ground level, s…
22/07129/LBC
2022 Refused
14 Chapel Street London SW1X 7BY
Excavation of a new basement level, single storey rear extension at lower ground level, s…
22/07128/FULL
2022 Refused
10 Chapel Street London SW1X 7BY
Excavation of new basement level, single storey rear extension at lower ground level, sin…
22/07009/FULL
2023 Approved
9 Chester Street London SW1X 7BB
1 x birch (T1, rear): Reduce in height by up to 3m, reduce lateral branches by up to 2m a…
23/02067/TCA
2023 Approved
1-2 Chester Close London SW1X 7BE
Rear courtyard. 1 x Japanese maple (T1): Fell. 1 x silver birch (T2): Crown reduce by abo…
23/00411/TCA
2023
7 Headfort Place London SW1X 7DE
Installation of balustrade at roof level to allow use of roof as a terrace, installation…
23/01158/FULL
2022 Approved
18 - 20 Headfort Place London SW1X 7DH
Installation of three air source heat pump and cooling units and associated screening enc…
22/06172/FULL
2017 Approved
19-20 Grosvenor Place London SW1X 7HN
Display for a temporary period of six months of a non-illuminated 'to let'/ 'for sale' bo…
17/02485/AD7
2016 Approved
16 Chapel Street London SW1X 7BY
Creation of new basement, removal of lower ground floor conservatory, erection of rear ex…
16/11979/LBC
2016 Approved
16 Chapel Street London SW1X 7BY
Creation of new basement, replacement of lower ground floor conservatory and associated c…
16/11978/FULL
2016 Approved
5 Chester Street London SW1X 7BB
Erection of an extension at ground floor level and associated works including internal al…
16/11869/LBC
2016 Approved
5 Chester Street London SW1X 7BB
Erection of an extension at ground floor level and associated works.
16/11868/FULL
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