Planning application
3 Blenheim Road Chiswick W4 1UB
Works: Extension Loft or dormer Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Single storey rear infill extension; insertion of 2 x rooflights to existing ground floor rear roof
As published by the council, reference 254661HH
Application record
- Reference
- 254661HH
- Type
- Householder
- Status
- Granted with Conditions
- Decision
- Grant with Conditions
- Received
- 11 Dec 2025
- Validated
- 11 Dec 2025
- Decided
- 11 Mar 2026
- Ward
- Southfield
- Decision by
- Delegated Decision
- Postcode
- W4 1UB
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 2 applications since 2025: 2 approved, 0 refused.
-
254662LBC Granted
3 Blenheim Road Chiswick W4 1UB
Single storey rear infill extension; insertion of 2 x rooflights to existing ground floor rear roof; internal renovation works (Listed Building Consent)
Timeline
Dates from the published record
-
11 Dec 2025
Received by Old Oak and Park Royal Development Corporation
-
11 Mar 2026
Decision issued: Grant with Conditions
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice
22 applications on PlanIndex · across 7 councils · 92% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
20 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Old Oak and Park Royal Development Corporation granted permission on 11 March 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
3 Blenheim Road Chiswick W4 1UB
Single storey rear infill extension; insertion of 2 x rooflights to existing ground floor rear roof; internal renovation works (Listed Building Consent)
Granted Heritage and listed buildings Extension Loft or dormer 20 docsSmall domestic -
3 Blenheim Road Chiswick W4 1UB
Single storey rear infill extension; insertion of 2 x rooflights to existing ground floor rear roof
Granted Householder Extension Loft or dormer 20 docsSmall domestic -
3 Blenheim Road Chiswick W4 1UB
Single storey rear infill extension; insertion of 2 x rooflights to existing ground floor rear roof; internal renovation works (Listed Building Consent)
Granted Heritage and listed buildings Extension Loft or dormer 20 docsSmall domestic -
23 Blenheim Road Chiswick W4 1UB London
Installation of a 'lantern light' to roof of existing ground floor rear extension; and external alterations involving repositioned door / window opening to rear and side (east) elevations of ground floor rear extension.
Refused Full applications Extension Windows or glazing -
23 Blenheim Road Chiswick London W4 1UB London
Installation of a 'lantern light' to roof of existing ground floor rear extension; external alterations involving repositioned door / window openings to rear and side (east) elevations of ground floor rear extension; internal alterations involving recreation of bathrooms at first floor level, repositioned partitions and door openings (Listed Building Consent).
Refused Heritage and listed buildings Extension Windows or glazing -
23 Blenheim Road Chiswick London W4 1UB London
Installation of a 'lantern light' to roof of existing ground floor rear extension; external alterations involving repositioned door / window openings to rear and side (east) elevations of ground floor rear extension; internal alterations involving recreation of bathrooms at first floor level, repositioned partitions and door openings (Listed Building Consent).
Refused Heritage and listed buildings Extension Windows or glazing
Other householder applications
In Old Oak and Park Royal Development Corporation
-
261571HH Granted
55 Ramillies Road Chiswick W4 1JW
Single storey rear extension; alteration of roof from hip to gable end; rear roof extension; installation of two rooflights to front roofslope; alterations to side fenestrations; replacement glazing throughout, replacement external render and hung tiles
-
262060HH Granted
8 Carlyle Gardens Southall UB1 2BN
Construction of single storey rear extension; first floor rear extension; alterations to the front, side and rear elevations involving modifications and insertion of windows; together with associated internal alterations (Retrospective)
-
262480HH Refused
270 Norwood Road Southall UB2 4JH
Alteration of roof from hip to gable end; rear roof extension; installation of three rooflights to front roofslope; alteration to first floor rear extension roof; external alterations
-
262450HH Granted
83 Bilton Road Perivale UB6 7BB
Formation of vehicle crossover
-
262646HH Granted
130 Bridge Avenue Hanwell W7 3AR
Single storey rear extension