21 Belgrave Gardens London NW8 0QY Data via plota.co.uk

26/03027/FULL - Full Planning Permission Application Refused
Extensions & alterations

Proposal

Replacement of the existing rear double-height conservatory with a two-storey rear extension at lower ground and ground floor levels. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
7 May 2026
✓
Validated
11 May 2026
✗
Refused
6 Jul 2026
✓
Appeal allowed
29 Sept 2026

Refused on 6 Jul 2026 · Delegated Decision · Last checked 7 Jul 2026

Documents 18

Decision & officer reports 2

PDF REFUSAL-FULL PP [PE] Decision Notice · 6 Jul 2026 View ↗ PDF DELEGATED REPORT Report · 6 Jul 2026 View ↗

Statements & assessments 3

PDF SUSTAINABLE STATEMENT Design and Access Statement · 7 May 2026 View ↗ PDF PLANNING STATEMENT Background Papers · 7 May 2026 View ↗ PDF HERITAGE STATEMENT Heritage Statement · 7 May 2026 View ↗

Plans & drawings 3

PDF AMENDED DRAWING PACK Drawing · 11 May 2026 View ↗ PDF LOCATION PLAN Location Plan · 7 May 2026 View ↗ PDF FIRE SAFETY PLAN AS REQUIRED BY POLICY D12A OF THE LONDON PLA2 Background Papers · 7 May 2026 View ↗

Application forms 1

PDF APPLICATIONFORMREDACTED Application Form · 7 May 2026 View ↗

Consultation & comments 3

PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 27 May 2026 View ↗ PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 27 May 2026 View ↗ PDF NEIGHBOUR NOTIFICATION LETTER (21D) Background Papers · 12 May 2026 View ↗

Other documents 6

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 12 May 2026 View ↗ PDF CNSLT-LA SOCIETY Background Papers · 12 May 2026 View ↗ PDF SITE NOTICE 21 OR 28 DAYS IF T&C APPL. Background Papers · 12 May 2026 View ↗ PDF RECEIPT OF APPLICATION Other · 11 May 2026 View ↗ PDF 1ST INVALID LETTER Background Papers · 11 May 2026 View ↗ PDF FIRE SAFETY STRATEGY Background Papers · 7 May 2026 View ↗

All documents on the council site ↗

Site constraints 7

St John's Wood 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 Named permitted development rights are withdrawn here.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 ↗
22 listed buildings within 150 m
Nearest: 76 and 78, Clifton Hill Nw8, Grade II, 31 m away · 22 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 22 with distances
Historic England ↗
Also on the record
Registered park or garden 200 m away: Alexandra Road Park; Inside the City of Westminster built-up area; Public transport access: PTAL 3 (moderate), 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, 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 area131 m² (1,410 sq ft)
Energy ratingD (63 out of 100), could reach C
PropertyMid-terrace flat, 4 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in August 2019, the latest held for this property. The building may have changed since. View the certificate

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Other new applications on this street

7 Jul 2026Approved

19 Belgrave Gardens London NW8 0QY

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Important details

Council
Westminster
Application type
Full Planning Permission Application
Postcode
NW8 0QY
Received
7 May 2026
Validated
11 May 2026
Ward
Abbey Road
Case officer
Show
Target decision
6 Jul 2026
Decision
Application Refused
Decision date
6 Jul 2026
Decision level
Delegated Decision
Appeal
Allowed · 29 Sept 2026 · Written Representations · Inspectorate case 6012425 ↗
Applicant
Show
Agent
GET PLANNING PERMISSION DONE LTD

How this decision compares

Decided in 56 days from validation, about the council's usual 55 days. Refused, as 12% 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-14823790
Planning Portal ref
PP-14823790
Comments by
11 Jul 2026
Site or press notice
20 Jun 2026
Env. assessment
No

Historical activity at this location

25 nearby applications on record - archival context, not part of the live application.

Within ~100m

Nearby activity

2025
66 Clifton Hill London NW8 0JT
Rear boundary. 1 x Lime (T5): Reduce canopy height by 4m and lateral spread by 1m. 1 x Li…
25/08172/TCA
2025
39 Belgrave Gardens London NW8 0RE
T1 - Reduce the Sycamore tree back to previous pruning points removing approximatley 3 me…
25/08117/TPO
2025
62 Abbey Road London NW8 0QH
T2 1 x lime (smaller tree) reduce height by 1m to straighten up the main leader and under…
25/07079/TCA
2025
62 Abbey Road London NW8 0QH
Tree Maintenance T1 Large lime tree to reduce height by 3m to 4m, pruning them back to su…
25/07192/TPO
2025 Approved
57 Clifton Hill London NW8 0JN
Erection of single storey rear extension at basement level, alterations to window, and re…
25/05331/FULL
2025 Approved
57 Clifton Hill London NW8 0JN
Installation of a condenser unit on flat roof within acoustic enclosure, to flat roof at…
25/05328/FULL
2025
23 Belgrave Gardens London NW8 0QY
Installation of new gas pipes to front and rear elevations (21-23 Belgrave Gardens)
25/06042/FULL
2025 Approved
11 Belgrave Place London SW1X 8AH
1 x dead cherry: fell
25/04897/TDD
2025 Refused
57 Clifton Hill London NW8 0JN
Erection of single storey rear extension at basement level, alterations to window, and re…
25/03035/FULL
2025 Approved
80 Clifton Hill London NW8 0JT
1 x Stone pine (T1, front) : reduce by about 1m; to no more than previous most recent red…
25/03216/TCA
2025 Approved
70 Clifton Hill London NW8 0JT
Excavation under front garden to provide a lower ground floor extension and associated in…
25/02127/LBC
2025
57 Clifton Hill London NW8 0JN
Installation of a condenser unit.
25/02988/FULL
2025 Approved
61A Clifton Hill London NW8 0JN
1 x lime: crown reduce to previous, most recent reduction points, retaining selected shor…
25/02132/TPO
2025
70 Clifton Hill London NW8 0JT
Erection of a Lower Ground floor front extension and associated installation of balustrad…
25/02126/FULL
2025
60 Abbey Road City Of Westminster London NW8 0QH
T1 False acacia (larger tree): fell, due to numerous cavities and areas of decay at crown…
25/01312/TCA
2025
Flat A 33 Belgrave Gardens London NW8 0RE
T1 - Bay tree - Reduce height 1.5 to 2m from 9m to 7m, and reduce sides 1 to 1.5m (6m wid…
25/01308/TCA
2025 Approved
60 Abbey Road City Of Westminster London NW8 0QH
1 x acacia- T1- reduce height by 2m and spread by 1m, pruning back to suitable growth poi…
25/00808/TCA
2025
66 Abbey Road City Of Westminster London NW8 0QH
T1 & T1 - Horse Chestnut: Reduce and shape crowns by approx. 2.5m all round - (2.5m off t…
25/01024/TPO
2025
60 Abbey Road City Of Westminster London NW8 0QH
4 x lime T3-T4-T5-T6 - reduce height by approximately 2-3m, pruning back to suitable grow…
25/00931/TPO
2025
64 Clifton Hill London NW8 0JT
H1 Leylandii Hedge: Reduce the height by approx 2m T1 Prunus: Reduce by approx 2.5m from…
25/00541/TCA
2020 Approved
95A Boundary Road London NW8 0RG
Use of first and second floors as two self-contained studio flats (Use Class C3).
20/05478/FULL
2020 Refused
105 Boundary Road London NW8 0RG
Use of ground floor as 1 bedroom residential flat (Class C3), associated replacement rear…
20/05107/FULL
2020 Approved
66 Clifton Hill London NW8 0JT
Installation of two new windows to east elevation, replacement doors at rear lower ground…
20/04054/LBC
2020 Approved
66 Clifton Hill London NW8 0JT
Installation of two new windows to east elevation, replacement doors at rear lower ground…
20/04053/FULL
2020 Approved
Flat 2 61 Belgrave Gardens London NW8 0RE
Installation of a new and replacement patio doors to terrace, handrail and decking.
20/03972/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

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.