Upper Maisonette 22 Clarendon Gardens London W9 1AZ Data via plota.co.uk

26/06550/LBC - Listed Building Consent Application Approved
Extensions & alterationsListed buildings

Proposal

Internal alterations to second floor. Data via plota.co.uk

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View original council record ↗Last checked

Application progress

✓
Received
23 Sept 2026
✓
Approved
7 Oct 2026

Approved on 7 Oct 2026 · Delegated Decision · Last checked 12 Oct 2026

Documents 6

Decision & officer reports 2

PDF GRANT OF LISTED BUILDING CONSENT [PE] Decision Notice · 7 Oct 2026 View ↗ PDF DELEGATED REPORT Report · 7 Oct 2026 View ↗

Statements & assessments 1

PDF HERITAGE, PLANNING, DESIGN AND ACCESS STATEMENT Design and Access Statement · 22 Sept 2026 View ↗

Plans & drawings 2

PDF LOCATION AND BLOCK PLAN Location Plan · 22 Sept 2026 View ↗ PDF EXISTING AND PROPOSED SECOND FLOOR PLAN Drawing · 22 Sept 2026 View ↗

Other documents 1

PDF ACK-GENERAL LETTER (G/P/C) Background Papers · 1 Oct 2026 View ↗

All documents on the council site ↗

Site constraints 7

Grade II listed: 18-34, Clarendon Gardens W9
List entry 1066248 · The pin is inside its outline · 25 more listed buildings within 150 m (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 25 with distances
Historic England ↗
Maida Vale 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 Named permitted development rights are withdrawn here.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 ↗
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; National infrastructure project 1550 m away: London Strategic Heat Main Project, at pre-application.
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.

Sales history 2

Last sold for £1,325,000 in March 2026. Flat or maisonette, leasehold.

6 March 2026£1,325,000
8 April 1999£310,000

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

Building

Floor area106 m² (1,141 sq ft)
Energy ratingD (66 out of 100), could reach C
PropertyMid-terrace flat, 6 habitable rooms
Built1900 to 1929
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in April 2025, 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
Listed Building Consent Application
Postcode
W9 1AZ
Received
23 Sept 2026
Validated
23 Sept 2026
Ward
Little Venice
Case officer
Show
Target decision
18 Nov 2026
Decision
Application Permitted
Decision date
7 Oct 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Martin Dowling Architecture
Freehold owner
Show

How this decision compares

Decided in 14 days from validation, 41 days faster than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.

56%decided within 8 weeks
88%approved
1,688decided in the last year

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

Public comments

No public comments yet.

Last counted 12 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Env. assessment
No

Historical activity at this location

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

This property

Previous applications at this address

2017 Refused
Erection of the terrace to the existing flat roof of the closet wing, guarded with wrough…
17/03128/LBC
2017 Refused
Installation of timber framed double doors at third floor level to provide access to roof…
17/03127/FULL
Within ~100m

Nearby activity

2025
37 Clifton Gardens London W9 1AR
Installation of new Air Source Heat Pump system with two external units located on the ma…
25/08368/FULL
2025
1 Randolph Avenue London W9 1BH
Alterations to front boundary wall; external stair to lower ground floor lightwell; addit…
25/08326/FULL
2025
56 Clifton Gardens London W9 1AU
Removal of false acacia tree located in the front garden.
25/06666/TDD
2025 Approved
37 Clifton Gardens London W9 1AR
Replacement of the glazing system on the existing rear glazed extension, replacement of t…
25/04579/FULL
2025 Approved
18 Clarendon Gardens London W9 1AZ
Internal alterations at lower ground floor level of maisonette apartment, including remov…
25/05485/LBC
2025 Approved
55 Clifton Gardens London W9 1AS
1 x sorbus (T1): Crown reduce by 1m; maintaining a balanced, aesthetically pleasing shape.
25/04207/TPO
2025 Approved
55 Clifton Gardens London W9 1AS
1 x Holly (T2): Crown reduce by approx. 0.5 metres and selective pruning to create cleara…
25/04312/TCA
2025 Approved
Southcott House Clifton Gardens London W9 1AT
T1962, T1963, T1964 & T1965 4 x Lime: crown reduce to previous, most recent reduction poi…
25/03914/TCA
2025
3 Randolph Road London W9 1AN
Internal alterations and refurbishment works.
25/03438/LBC
2025
1 Randolph Avenue London W9 1BH
Erection of a part-single and part-two storey side extension at ground floor.
25/02633/FULL
2025
1 Randolph Avenue London W9 1BH
Erection of a part-single and part-two storey side extension at ground floor.
25/02632/FULL
2025
1 Randolph Avenue London W9 1BH
Infilling of lower ground floor front lightwell to provide additional habitable space and…
25/02519/FULL
2025
1 Randolph Avenue London W9 1BH
Infilling of lower ground floor front lightwell to provide additional habitable space and…
25/02518/FULL
2025
1 Randolph Avenue London W9 1BH
Erection of single storey rear extension at lower ground floor level, and associated exte…
25/01875/FULL
2025
1 Randolph Avenue London W9 1BH
Erection of single storey rear extension at lower ground floor level, and associated exte…
25/01812/FULL
2025
31 Clarendon Gardens London W9 1AZ
Installation of one commemorative ceramic blue plaque, inset into the brick and stucco fr…
25/01357/LBC
2025
Open Space Clifton Gardens London W9 1AL
t 1 - t 6 Mature limes on road side. Reduce canopies back to most recent reduction points…
25/01112/TCA
2025
Third Floor Flat 23 Clarendon Gardens London W9 1AZ
Internal works to include: Removal of pre-existing non-historic stud partitions, doors an…
25/00236/LBC
2024 Approved
30 Clifton Gardens London W9 1AU
T1 - Acer pseudoplatanus: Remove or prune to suitable growth points stub cuts left by pre…
25/08899/TPO
2024
30 Clifton Gardens London W9 1AU
Tree work T1 - Acer pseudoplatanus in rear garden of 30 Clifton Gardens. Undertake remedi…
24/08899/TCA
2016 Approved
9 Randolph Avenue London W9 1BH
Erection of a mansard roof extension at fourth floor level, demolition and reconstruction…
16/08425/FULL
2017 Approved
Open Space Clifton Gardens London W9 1AL
1 x Lime tree (outside front of 26 Clifton Gardens): Reduce back to most recent reduction…
17/01131/TPO
2017 Approved
Open Space Clifton Gardens London W9 1AL
1 x Lime tree (outside front of 26 Clifton Gardens): Reduce back to most recent reduction…
17/01131/TCA
2017 Approved
21 Clifton Gardens London W9 1AR
2 x Lime (front) - Crown reduce back to previous, most recent reduction points retaining…
17/00241/TCA
2016 Approved
21A Clifton Gardens London W9 1AR
Installation of doors and widening of existing doors to the rear garden.
16/09714/FULL
Westminster
Planning Authority Score
3.5/10
Below average
#221 of 296 councils
Relevant to this application:
Other 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

Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

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.

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.