4 Biddulph Road London W9 1JB

25/08498/FULLPermitted

Proposal

Erection of rear extensions at ground and first floor levels, single storey side extension at ground floor level, and rear roof dormer; Excavation to extend existing basement level with associated lightwells to front and rooflights to rear garden; installation of rooflights; Alterations to windows and doors; Creation of bin store to front garden; Landscaping works; provision of attenuation tank under part of front garden; and associated external alterations.

Received: 20 November 2025
Decided: 12 June 2026 · Application Permitted
Council: City of Westminster

Site boundary (council red line)

ReceivedReceived20 Nov
ValidatedValidated20 Nov
Consult.Consultation
TargetTarget Date
DecidedDecided12 Jun

Decided in 204 days

This is a planning application for a single storey side extension at 4 Biddulph Road London W9 1JB. Westminster has handled 26,711 applications of this type and approves 88% of them, typically deciding them in 53 days. This one was decided in 204 days, 22 weeks longer than Westminster's median. The site is in the Maida Vale conservation area. There have been 5 other applications at this address. We hold 1,399 applications in total for the W9 postcode area.

Application Details

Reference

25/08498/FULL

Address

4 Biddulph Road London W9 1JB

Postcode

W9 1JB

Local Authority

Westminster

Decision Status

Permitted

Current Status

Decided

Applicant & Agent

Planning Application Dates

Date Received

20 November 2025

Date Decided

12 June 2026

Date Validated

20 November 2025

Date Submitted

20 November 2025

Planning Decision

Decision

Application Permitted

Publicity

Appeal

Additional Information

Coordinates

51.527897, -0.186803

Enriching application data

2/3

Council recordsAppealsFlood risk

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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Associated applications

2026
19 Oct
Details of signed Appendix A - checklist B pursuant to discharge of condition 10 of planning permission dated…
ApprovedDischarge of conditions26/07130/ADFULL
2025
20 Nov
Erection of rear extensions at ground and first floor levels, single storey side extension at ground floor…
This applicationApprovedApplication25/08498/FULL

Planning history at this site

9 other applications at this property, newest first.

Planning constraints

Designations that overlap or adjoin the site outline.

Conservation area: Maida Vale
Article 4 direction: Article 4 Basement Development Permitted Rights Removed
Flood zone 1: Low probability (rivers and sea)

Also checked, none recorded (22)

flood storage areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

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