23 Blomfield Road London W9 1AD Data via plota.co.uk

25/09172/FULL - Full Planning Permission Application Approved

Proposal

Alterations to the basement and rear extension and fenestration, including the installation of a door in place of the approved windows and replacement of front lightwell balustrade with railings and associated works. Data via plota.co.uk

View original council record ↗Last checked

Application progress

✓
Received
18 Dec 2025
✓
Approved
5 Jun 2026

Approved on 5 Jun 2026 · Delegated Decision · Last checked 3 Oct 2026

Documents 72

Plans & drawings 53

PDF LOCATION PLAN Location Plan · 18 Dec 2025 View ↗ PDF AS BUILT BASEMENT Drawing · 18 Dec 2025 View ↗ PDF AS BUILT LOWER GROUND FLOOR Drawing · 18 Dec 2025 View ↗ PDF AS BUILT UPPER GROUND FLOOR Drawing · 18 Dec 2025 View ↗ PDF AS BUILT FIRST FLOOR PLAN Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECOND FLOOR PLAN Drawing · 18 Dec 2025 View ↗ PDF AS BUILT ROOF PLAN Drawing · 18 Dec 2025 View ↗ PDF AS BUILT PAVILION BASEMENT PLAN Drawing · 18 Dec 2025 View ↗ PDF AS BUILT PAVILION GROUND FLOOR Drawing · 18 Dec 2025 View ↗ PDF AS BUILT PAVILION FIRST FLOOR PLAN Drawing · 18 Dec 2025 View ↗ PDF AS BUILT PAVILION ROOF PLAN Drawing · 18 Dec 2025 View ↗ PDF AS BUILT LANDSCAPE PLAN Drawing · 18 Dec 2025 View ↗ PDF AS BUILT FRONT ELEVATION Drawing · 18 Dec 2025 View ↗ PDF AS BUILT FRONT GATE ELEVATION Drawing · 18 Dec 2025 View ↗ PDF AS BUILT REAR ELEVATION Drawing · 18 Dec 2025 View ↗ PDF AS BUILT WEST ELEVATION Drawing · 18 Dec 2025 View ↗ PDF AS BUILT EAST ELEVATION Drawing · 18 Dec 2025 View ↗ PDF AS BUILT LIGHTWELL ELEVATION Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECTION AA Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECTION BB Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECTION CC Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECTION DD Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECTION EE Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECTION FF Drawing · 18 Dec 2025 View ↗ PDF AS BUILT SECTION GG Drawing · 18 Dec 2025 View ↗ PDF AS BUILT - EXTERIOR SPIRAL STAIRCASE Drawing · 18 Dec 2025 View ↗ PDF PROPOSED BASEMENT PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED LOWER GROUND FLOOR Drawing · 18 Dec 2025 View ↗ PDF PROPOSED UPPER GROUND FLOOR Drawing · 18 Dec 2025 View ↗ PDF PROPOSED FIRST FLOOR PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECOND FLOOR PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED ROOF PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED PAVILION BASEMENT PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED PAVILION GROUND FLOOR PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED PAVILION FIRST FLOOR PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED PAVILION ROOF PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED LANDSCAPE LAYOUT Drawing · 18 Dec 2025 View ↗ PDF PROPOSED FRONT ELEVATION Drawing · 18 Dec 2025 View ↗ PDF PROPOSED FRONT GATE ELEVATION Drawing · 18 Dec 2025 View ↗ PDF PROPOSED REAR ELEVATION Drawing · 18 Dec 2025 View ↗ PDF PROPOSED WEST ELEVATION Drawing · 18 Dec 2025 View ↗ PDF PROPOSED EAST ELEVATION Drawing · 18 Dec 2025 View ↗ PDF PROPOSED LIGHTWELL ELEVATION Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECTION AA Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECTION BB Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECTION CC Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECTION DD Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECTION EE Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECTION FF Drawing · 18 Dec 2025 View ↗ PDF PROPOSED SECTION GG Drawing · 18 Dec 2025 View ↗ PDF PROPOSED EXTERIOR SPIRAL STAIRCASE Drawing · 18 Dec 2025 View ↗ PDF PROPOSED UPPER GROUND FLOOR DETAIL PLAN Drawing · 18 Dec 2025 View ↗ PDF PROPOSED FIRST FLOOR DETAIL PLAN Drawing · 18 Dec 2025 View ↗

All documents on the council site ↗

Associated applications 4

Site constraints 8

Grade II listed: 23, Blomfield Road W9
List entry 1291810 · The pin is inside its outline · 34 more listed buildings within 150 m (1 Grade I, 33 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 34 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
Protected tree 14 m away: P1_T86, order P1; Inside the City of Westminster built-up area; Public transport access: PTAL 6a (excellent), TfL 2023, for the 100 m square; National infrastructure project 1440 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 £24,200,000 in October 2024. Detached house, freehold.

29 October 2024£24,200,000
27 April 2007£10,350,000

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

Building

Energy ratingD (63 out of 100), could reach C
PropertyDetached house, 16 habitable rooms
BuiltBefore 1900
HeatingBoiler and radiators, mains gas
WallsSolid brick, as built, no insulation (assumed)

From the energy performance certificate lodged in November 2023, the latest held for this property. The building may have changed since. View the certificate

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Important details

Application type
Full Planning Permission Application
Postcode
W9 1AD
Received
18 Dec 2025
Validated
18 Dec 2025
Ward
Little Venice
Case officer
Show
Target decision
8 Jun 2026
Decision
Application Permitted
Decision date
5 Jun 2026
Decision level
Delegated Decision
Applicant
Show
Agent
Planning Insight

How this decision compares

Decided in 169 days from validation, 96 days slower than Westminster's median of 73 for full applications. Approved, as 86% of full applications here are.

36%decided within 8 weeks
86%approved
2,036decided 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

1comment received
1 supporting

4 neighbours consulted · Last counted 3 Oct 2026

Read the comments on the council site ↗

Consultation & key dates

Alt. reference
PP-14571316
Planning Portal ref
PP-14571316
Env. assessment
No
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

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.