17 Belgrave Square London SW1X 8PG Data via plota.co.uk

25/06935/FULL - Full Planning Permission Application Approved

Proposal

Part refurbishment, part replacement, of the existing windows on all elevations of the building at 17 Belgrave Square and adjacent mews at 17 Belgrave Mews West. (Linked with 25/06936/LBC) Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
26 Sept 2025
✓
Validated
22 Oct 2025
✓
Approved
18 Mar 2026

Approved on 18 Mar 2026 · Delegated Decision · Last checked 14 Oct 2026

Documents 153

Decision & officer reports 2

PDF GRANT OF FULL PP [PE] Decision Notice · 18 Mar 2026 View ↗ PDF DELEGATED REPORT Report · 18 Mar 2026 View ↗

Statements & assessments 5

PDF HERITAGE STATEMENT Heritage Statement · 19 Nov 2025 View ↗ PDF FULL CONDITION SURVEY Background Papers · 17 Oct 2025 View ↗ PDF 6. DESIGN AND ACCESS STATEMENT Design and Access Statement · 26 Sept 2025 View ↗ PDF HERITAGE STATEMENT APPENDICIES Heritage Statement · 26 Sept 2025 View ↗ PDF HERITAGE STATEMENT Heritage Statement · 26 Sept 2025 View ↗

Plans & drawings 93

PDF ELEVATION 1 AND 2: DEMOLITION FRONT Drawing · 9 Mar 2026 View ↗ PDF ELEVATION 2: DEMOLITION SIDE ORANGERY Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 3 AND 4 : DEMOLITION OF REAR LIGHT WELL Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 5 AND 6: DEMOLITION REAR MAIN HOUSE ANNEX Drawing · 9 Mar 2026 View ↗ PDF EVATIONS 8 AND 9: DEMOLITION FRONT AND REAR MEWS HOUSE Drawing · 9 Mar 2026 View ↗ PDF WINDOWS TYPE Drawing · 9 Mar 2026 View ↗ PDF WINDOWS TYPE Drawing · 9 Mar 2026 View ↗ PDF WINDOWS TYPE Drawing · 9 Mar 2026 View ↗ PDF WINDOWS TYPE Drawing · 9 Mar 2026 View ↗ PDF WINDOWS TYPE Drawing · 9 Mar 2026 View ↗ PDF DOOR TYPE Drawing · 9 Mar 2026 View ↗ PDF WINDOWS DETAIL Drawing · 9 Mar 2026 View ↗ PDF ELEVATION 1 AND 2: EXISTING FRONT Drawing · 9 Mar 2026 View ↗ PDF ELEVATION 2: EXISTING SIDE ORANGERY Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 3 AND 4: EXISTING OF REAR LIGHTWELL Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 5 AND 6: EXISTING REAR MAIN HOUSE ANNEX Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 8 AND 9: EXISTING FRONT AND REAR MEWS HOUSE Drawing · 9 Mar 2026 View ↗ PDF ELEVATION 1 AND 2 : PROPOSED FRONT Drawing · 9 Mar 2026 View ↗ PDF ELEVATION 2: PROPOSED SIDE ORANGERY Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 3 AND 4: PROPOSED OF REAR LIGHTWELL Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 5 AND 6: PROPOSED REAR MAIN HOUSE ANNEX Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 8 AND 9: PROPOSED FRONT AND REAR MEWS HOUSE Drawing · 9 Mar 2026 View ↗ PDF LEVATIONS 7A AND 7B: PROPOSED SIDES ORANGERY Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL LG - LG.W2 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 00 - G.W1 AND G.W2 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 1.W1,1.W2 AND 1.W3 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - 2.W2 AND 2.W3 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 03 - 3.W1, 3.W2 AND 3.W3 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 04 - 4.W1, 4.W2,4.W3, 4.W4,4.W5 & 4.W7 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 00 - G.W3 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 1.W4 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 2.W12 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - 2.W4 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - MEZ.W1& MEZ.W2 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 03 - 3.W4 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 03 - 3.W5, 3.W6 & 3.W7 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 04 - 4.W6 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 1.W5 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL LG - LG.W1 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL LG - LG.W3 Drawing · 9 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - 2.W1 Drawing · 9 Mar 2026 View ↗ PDF ELEVATIONS 7A AND 7B PROPOSED SIDES ORANGERY Superseded document · 3 Mar 2026 View ↗ PDF ELEVATIONS 8 AND 9: PROPOSED FRONT AND REAR MEWS HOUSE Drawing · 3 Mar 2026 View ↗ PDF ELEVATIONS 5 AND 6: PROPOSED REAR MAIN HOUSE /ANNEX Superseded document · 3 Mar 2026 View ↗ PDF ELEVATION 2: PROPOSED SIDE ORANGERY Superseded document · 3 Mar 2026 View ↗ PDF ELEVATIONS 8 AND 9: DEMOLITION FRONT AND REAR MEWS HOUSE Superseded document · 3 Mar 2026 View ↗ PDF ELEVATIONS 5 AND 6: DEMOLITION REAR MAIN HOUSE /ANNEX Superseded document · 3 Mar 2026 View ↗ PDF ELEVATIONS 5 AND 6: EXISTING REAR MAIN HOUSE /ANNEX Superseded document · 3 Mar 2026 View ↗ PDF UPDATED DRAWING SCHEDULE Background Papers · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - 2.W1 Drawing · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 1.W5 Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 7A AND 7B: PROPOSED SIDES ORANGERY Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 8 AND 9: PROPOSED FRONT AND REAR MEWS HOUSE Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 5 AND 6: PROPOSED REAR MAIN HOUSE /ANNEX Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 3 AND 4: PROPOSED OF REAR LIGHTWELL Superseded document · 18 Feb 2026 View ↗ PDF ELEVATION 2: PROPOSED SIDE ORANGERY Drawing · 18 Feb 2026 View ↗ PDF ELEVATION 1 AND 2 : PROPOSED FRONT Superseded document · 18 Feb 2026 View ↗ PDF ELEVATIONS 8 AND 9: EXISTING FRONT AND REAR MEWS HOUSE Superseded document · 18 Feb 2026 View ↗ PDF ELEVATIONS 5 AND 6: EXISTING REAR MAIN HOUSE /ANNEX Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 3 AND 4: EXISTING OF REAR LIGHTWELL Superseded document · 18 Feb 2026 View ↗ PDF ELEVATION 2: EXISTING SIDE ORANGERY Superseded document · 18 Feb 2026 View ↗ PDF ELEVATION 1 AND 2: EXISTING FRONT Superseded document · 18 Feb 2026 View ↗ PDF WINDOW DETAIL CASEMENT AND SASH Drawing · 18 Feb 2026 View ↗ PDF DOOR TYPE 1 Drawing · 18 Feb 2026 View ↗ PDF WINDOWS TYPE 26 TO 41 Drawing · 18 Feb 2026 View ↗ PDF WINDOWS TYPE 22,25 Drawing · 18 Feb 2026 View ↗ PDF WINDOWS TYPE 18,19,20,21 Drawing · 18 Feb 2026 View ↗ PDF WINDOWS TYPE 12,13,14 Drawing · 18 Feb 2026 View ↗ PDF WINDOWS TYPE 4,5,6 Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 8 AND 9: DEMOLITION FRONT AND REAR MEWS HOUSE Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 5 AND 6: DEMOLITION REAR MAIN HOUSE /ANNEX Drawing · 18 Feb 2026 View ↗ PDF ELEVATIONS 3 AND 4 : DEMOLITION OF REAR LIGHTWELL Superseded document · 18 Feb 2026 View ↗ PDF ELEVATION 2: DEMOLITION SIDE ORANGERY Superseded document · 18 Feb 2026 View ↗ PDF ELEVATION 1 AND 2: DEMOLITION FRONT Superseded document · 18 Feb 2026 View ↗ PDF WINDOWS DETAIL Drawing · 22 Oct 2025 View ↗ PDF ELEVATION 1: DEMOLITION FRONT Superseded document · 26 Sept 2025 View ↗ PDF ELEVATION 2: DEMOLITION SIDE ORANGERY Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 3,4 AND 5: DEMOLITION OF REAR LIGHTWELL Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 6: DEMOLITION REAR MAIN HOUSE /ANNEX Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 7, 8 AND 9: DEMOLITION SIDE GARDEN BLOCK + FRONT AND REAR MEWS HOUSE Superseded document · 26 Sept 2025 View ↗ PDF ELEVATION 1: EXISTING FRONT Superseded document · 26 Sept 2025 View ↗ PDF ELEVATION 2: EXISTING SIDE ORANGERY Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 3,4 AND 5: EXISTING OF REAR LIGHTWELL Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 6: EXISTING REAR MAIN HOUSE /ANNEX Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 7, 8 AND 9: EXISTING SIDE GARDEN BLOCK + FRONT AND REAR MEWS HOUSE Superseded document · 26 Sept 2025 View ↗ PDF ELEVATION 1: PROPOSED FRONT Superseded document · 26 Sept 2025 View ↗ PDF ELEVATION 2: PROPOSED SIDE ORANGERY Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 3,4 AND 5: PROPOSED OF REAR LIGHTWELL Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 6: PROPOSED REAR MAIN HOUSE /ANNEX Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 7, 8 AND 9: PROPOSED SIDE GARDEN BLOCK + FRONT AND REAR MEWS HOUSE Superseded document · 26 Sept 2025 View ↗ PDF ELEVATIONS 7A AND 7B: PROPOSED SIDES ORANGERY Superseded document · 26 Sept 2025 View ↗ PDF SITE LOCATION PLAN Location Plan · 26 Sept 2025 View ↗ PDF 4. DRAWING SCHEDULE Superseded document · 26 Sept 2025 View ↗

Application forms 1

PDF APPLICATION FORM REDACTED Application Form · 26 Sept 2025 View ↗

Consultation & comments 2

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 30 Oct 2025 View ↗ PDF INVALID CHASER LETTER (14 DAY RESPONSE) Background Papers · 20 Oct 2025 View ↗

Other documents 50

PDF WINDOWS DETAIL Superseded document · 3 Mar 2026 View ↗ PDF DOOR TYPE Superseded document · 3 Mar 2026 View ↗ PDF WINDOWS TYPE Superseded document · 3 Mar 2026 View ↗ PDF WINDOWS TYPE Superseded document · 3 Mar 2026 View ↗ PDF WINDOWS TYPE Superseded document · 3 Mar 2026 View ↗ PDF WINDOWS TYPE Superseded document · 3 Mar 2026 View ↗ PDF WINDOWS TYPE Superseded document · 3 Mar 2026 View ↗ PDF TYPICAL WINDOW - LEVEL LG - LG.W3 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL LG - LG.W1 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 04 - 4.W6 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 03 - 3.W5, 3.W6 & 3.W7 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 03 - 3.W4 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - MEZ.W1& MEZ.W2 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - 2.W4 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 2.W12 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 1.W Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 00 - G.W3 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 04 - 4.W1, 4.W2,4.W3, 4.W4,4.W5 & 4.W7 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 03 - 3.W1, 3.W2 AND 3.W3 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 02 - 2.W2 AND 2.W3 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 01 - 1.W1,1.W2 AND 1.W3 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL 00 - G.W1 AND G.W2 Superseded document · 18 Feb 2026 View ↗ PDF TYPICAL WINDOW - LEVEL LG - LG.W2 Superseded document · 18 Feb 2026 View ↗ PDF WINDOW CONDITION INVESTIGATION REPORT Background Papers · 19 Nov 2025 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 30 Oct 2025 View ↗ PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 30 Oct 2025 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 30 Oct 2025 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 30 Oct 2025 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 30 Oct 2025 View ↗ PDF WINDOWS TYPE 1 Superseded document · 22 Oct 2025 View ↗ PDF WINDOWS TYPE 2 Superseded document · 22 Oct 2025 View ↗ PDF WINDOWS TYPE 3 Superseded document · 22 Oct 2025 View ↗ PDF WINDOWS TYPE 4 Superseded document · 22 Oct 2025 View ↗ PDF WINDOWS TYPE 5 Superseded document · 22 Oct 2025 View ↗ PDF DOOR TYPE Superseded document · 22 Oct 2025 View ↗ PDF WINDOW DETAIL Superseded document · 22 Oct 2025 View ↗ PDF 1ST INVALID LETTER Background Papers · 15 Oct 2025 View ↗ PDF RECEIPT OF APPLICATION ACKREC · 1 Oct 2025 View ↗ PDF APPLICATION SUMMARY SHEET Background Papers · 1 Oct 2025 View ↗ PDF ATTACHMENT SUMMARY Background Papers · 26 Sept 2025 View ↗ PDF WINDOWS TYPE -1 Superseded document · 26 Sept 2025 View ↗ PDF WINDOWS TYPE -2 Superseded document · 26 Sept 2025 View ↗ PDF WINDOWS TYPE -3 Superseded document · 26 Sept 2025 View ↗ PDF WINDOWS TYPE -4 Superseded document · 26 Sept 2025 View ↗ PDF WINDOWS TYPE -5 Superseded document · 26 Sept 2025 View ↗ PDF DOOR TYPE Superseded document · 26 Sept 2025 View ↗ PDF WINDOWS DETAIL -1 Superseded document · 26 Sept 2025 View ↗ PDF WINDOWS DETAIL -2 Superseded document · 26 Sept 2025 View ↗ PDF WCC LLFA SMALL-SCALE DEVELOPMENT CHECKLIST Background Papers · 26 Sept 2025 View ↗ PDF COVER LETTER Background Papers · 26 Sept 2025 View ↗

All documents on the council site ↗

Site constraints 9

Grade I listed: 13-23, Belgrave Square Sw1
List entry 1066457 · The pin is inside its outline · 30 more listed buildings within 150 m (4 Grade I, 2 Grade II*, 24 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 30 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.
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 ↗
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 875 m away: Thames Tideway Tunnel
The site is 875 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, 19 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 ↗
Registered park or garden 68 m away: The Grosvenor Estate: Belgrave 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 6a (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 2 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.

Building

Floor area163 m² (1,755 sq ft)
Energy ratingE (45 out of 100), could reach B
PropertyMid-terrace house, 5 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in November 2013, 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 8HT
Received
26 Sept 2025
Validated
22 Oct 2025
Ward
Knightsbridge & Belgravia
Case officer
Show
Target decision
23 Mar 2026
Decision
Application Permitted
Decision date
18 Mar 2026
Decision level
Delegated Decision
Applicant
Show

How this decision compares

Decided in 147 days from validation, 71 days slower than Westminster's median of 76 for full applications. Approved, as 86% of full applications here are.

35%decided within 8 weeks
86%approved
2,198decided in the last year

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

Public comments

No public comments yet.

8 neighbours consulted · Last counted 14 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14341535
Planning Portal ref
PP-14341535
Comments by
3 Dec 2025
Site or press notice
12 Nov 2025
Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2025
Replacement of existing windows on all elevations of the building at 17 Belgrave Square a…
25/06936/LBC
2025 Approved
Replacement of existing lift shaft, repositioning of two windows and one door and upgradi…
25/04567/LBC
2025 Approved
Replacement of existing lift shaft, repositioning of two windows and one door and upgradi…
25/04566/FULL
2025
Replacement and erection of plant equipment at 17 Belgrave Square and 17 Belgrave Mews We…
25/03417/LBC
2025
Replacement and erection of plant equipment at 17 Belgrave Square and 17 Belgrave Mews We…
25/03416/FULL
2025
Amendments to planning permission dated 13 December 2019 (RN: 18/01324/FULL) for 'Demolit…
25/02147/NMA
2025
Minor internal layout changes to 17 Belgrave Square and installation of underfloor heatin…
25/02106/LBC
2024
Proposed works to a listed building are lawful and would not require listed building cons…
24/08249/CLLB
2024
Amendments to planning permission dated13 December 2019 (RN:18/01324/FULL) for demolition…
24/01328/NMA
2024
Amendments to planning permission dated 13 December 2019 (Ref: 18/01324/FULL) for, 'Demol…
24/01324/LBC
2023 Approved
Demolition of annexe building and replacement with rear extensions to 17 Belgrave Square…
23/01545/CLOPUD
2018 Approved
Demolition of annexe building and replacement with rear extensions to 17 Belgrave Square…
18/01325/LBC
2018 Approved
Demolition of annexe building and replacement with rear extensions to 17 Belgrave Square…
18/01324/FULL
2017 Refused
Details of the provision of affordable housing pursuant to condition 11 of planning permi…
17/07591/ADFULL
2017 Approved
Details of construction management plan pursuant to condition 10 of planning permission d…
17/07349/ADFULL
Within ~100m

Nearby activity

2025 Approved
39 Chesham Place London SW1X 8SB
Works in accordance with the attached specification.
25/05094/TCA
2025 Approved
10 Chesham Place London SW1X 8HN
Installation of one ceramic commemorative blue plaque to Julia Margaret Cameron.
25/04529/LBC
2025
4A Belgrave Mews West London SW1X 8HT
Installation of an air source heat pump at roof level.
25/05632/CLOPUD
2025
25 Chesham Mews London SW1X 8HS
The removal of the existing mansard roof and replacement to form an extended to match the…
25/00875/FULL
2025
14 Chesham Place London SW1X 8HN
Damp proofing works to front elevation external to basement lightwell wall and party wall…
25/00211/LBC
2024 Approved
23 Belgrave Square London SW1X 8PZ
Loquat (T1) - Fell.
24/06906/TCA
2024
4A Belgrave Mews West London SW1X 8HT
Installation of an air source heat pump.
24/04274/FULL
2024 Refused
Front Studio Flat Basement 14 Chesham Place London SW1X 8HN
Damp proofing works at lower ground floor level to front external wall and party wall wit…
24/01661/LBC
2024
17 Belgrave Mews West London SW1X 8HT
Excavation of new basement and construction of a roof extension, including alterations an…
24/01368/FULL
2024
Flat 3 37 Chesham Place London SW1X 8HB
Alterations to rear terrace at second floor level including new French doors, floor finis…
24/01156/LBC
2024
Flat 3 37 Chesham Place London SW1X 8HB
Alterations to rear terrace at second floor level including new French doors, floor finis…
24/01155/FULL
2022 Approved
Flat 1 13 Chesham Place London SW1X 8HN
Replacement of aluminium- and uPVC-framed windows and doors with timber framed windows an…
22/06338/FULL
2022 Approved
Flat 1 13 Chesham Place London SW1X 8HN
Replacement of aluminium- and uPVC-framed windows and doors with timber-framed windows an…
22/06339/LBC
2023 Approved
16 Belgrave Square London SW1X 8PG
1 x Golden Rain Tree (rear): Prune back to most recent previous reduction points leaving…
23/00938/TCA
2022 Approved
4A Belgrave Mews West London SW1X 8HT
Replacement windows at ground, first and second floor level; widening of entrance portico…
22/08280/FULL
2022 Approved
25 Chesham Mews London SW1X 8HS
Replacement of mansard roof and excavation to create a single storey basement beneath the…
22/05964/FULL
2022 Approved
14-15 Belgrave Square London SW1X 8PS
2 x bays (T1 and T2): Reduce the crowns by up to 1.5 metres, leaving balanced crowns
22/03417/TCA
2022
22 Chesham Mews London SW1X 8HS
Alterations including extension of mansard roof by infilling existing terrace, installati…
22/01028/FULL
2021 Approved
18 Belgrave Mews West London SW1X 8PX
1 x hornbeam (T1, rear): Crown reduce to no more than previous most recent reduction poin…
21/07752/TCA
2021 Approved
38 Chesham Place London SW1X 8HW
1 x silver birch: fell
21/01078/TCA
2017 Approved
14-15 Belgrave Square London SW1X 8PS
1 x robinia (rear): fell
17/04899/TCA
2017 Approved
Flat 5 13 Chesham Place London SW1X 8HN
Retention of a new soil vent pipe to existing soil pipe. Associated internal partitions t…
17/03189/LBC
2017 Approved
Flat 5 13 Chesham Place London SW1X 8HN
Retention of a new soil vent pipe to existing soil pipe.
17/04979/FULL
2017 Approved
14-15 Belgrave Square London SW1X 8PS
Changing of locking mechanism to council room doors to push bar release to comply with me…
17/04495/LBC
2017 Approved
21-23 Belgrave Square London SW1X 8PZ
Removal and replacement of existing roof finishes and ceilings and with new, replace uppe…
17/02213/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

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.