Planning application
38 Seymour Road Chiswick W4 5ES
Works: New dwelling 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
Conversion of two existing flats into single dwellinghouse; single storey side/rear extension; alterations to existing rear extension fenestrations; rear roof extension; rear outrigger roof extension; installation of three rooflights to front roofslope; raise boundary wall
As published by the council, reference 254289FUL
Application record
- Reference
- 254289FUL
- Type
- Full Application
- Status
- Granted with Conditions
- Decision
- Grant with Conditions
- Received
- 12 Nov 2025
- Validated
- 12 Nov 2025
- Decided
- 14 Jan 2026
- Ward
- Southfield
- Decision by
- Delegated Decision
- Postcode
- W4 5ES
Timeline
Dates from the published record
-
12 Nov 2025
Received by Old Oak and Park Royal Development Corporation
-
14 Jan 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, registered in Dartford
99 applications on PlanIndex · across 17 councils · 87% 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
12 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 a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
-
38 Seymour Road Chiswick W4 5ES
Conversion of two existing flats into single dwellinghouse; single storey side/rear extension; alterations to existing rear extension fenestrations; rear roof extension; rear outrigger roof extension; installation of three rooflights to front roofslope; raise boundary wall
Granted Full applications New dwelling Extension +1 12 docsSmall domestic -
40 Seymour Road Chiswick London W4 5ES
Retention of sedum roof; installation of planter and automatic watering system to first floor outrigger extension; and reduction in height of existing unauthorised trellis (part modified/part retrospective).
Granted Householder Extension 9 docsDomestic -
40 Seymour Road Chiswick London W4 5ES
Retention of sedum roof; installation of planter and automatic watering system to first floor outrigger extension; and reduction in height of existing unauthorised trellis (part modified/part retrospective).
Granted Householder Extension 9 docsDomestic -
49 Antrobus Road Chiswick W4 5HZ
Rear roof extension to main roofslope involving raising height of roof ridge, chimney and party wall; roof extension to rear outrigger; installation of three rooflights to front roofslope; single storey side/rear extension; and associated internal and external alterations (following demolition of existing side conservatory extension
Granted Householder Extension Loft or dormer +1 9 docsSmall domestic -
49 Antrobus Road Chiswick W4 5HZ
Rear roof extension to main roofslope involving raising height of roof ridge, chimney and party wall; roof extension to rear outrigger; installation of three rooflights to front roofslope; single storey side/rear extension; and associated internal and external alterations (following demolition of existing side conservatory extension
Granted Householder Extension Loft or dormer +1 9 docsSmall domestic -
20 Seymour Road Chiswick W4 5ES
87% historically approved · decision due ~9 Sep
Single storey side/rear extension
Awaiting decision Extension 8 docsSmall domestic
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Construction of third floor to provide additional self-contained flat with provision of cycle and waste storage; rear outrigger roof extension and alterations to second floor flat