Planning application
103 Cornwall Avenue Southall UB1 2TQ
Works: Extension Loft or dormer Windows or glazing
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Alteration of roof from hip to gable end; rear roof extension; installation of one rooflight to front roofslope and a window within side gable wall (Lawful Development Certificate for a Proposed Development)
As published by the council, reference 260944CPL
Application record
- Reference
- 260944CPL
- Type
- Certificate of Lawfulness - Proposed
- Status
- Permitted Development
- Decision
- Permitted Development
- Received
- 4 Mar 2026
- Validated
- 4 Mar 2026
- Decided
- 28 Apr 2026
- Ward
- Lady Margaret
- Decision by
- Delegated Decision
- Postcode
- UB1 2TQ
Site history
Applications at this address on the Ealing register
This site has had 2 applications since 2025: 1 approved, 1 refused.
-
254463CPL Refused
103 Cornwall Avenue Southall UB1 2TQ
Alteration of roof from hip to gable end; and rear roof extension (Application for a Lawful Development Certificate for a Proposed Development)
Timeline
Dates from the published record
-
4 Mar 2026
Received by Ealing
-
28 Apr 2026
Decision issued: Permitted Development
-
11 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, a planning consultancy registered in London
40 applications on PlanIndex · across 6 councils · 70% 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
4 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
Ealing granted permission on 28 April 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 lawful development applications
A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
103 Cornwall Avenue Southall UB1 2TQ
Alteration of roof from hip to gable end; rear roof extension; installation of one rooflight to front roofslope and a window within side gable wall (Lawful Development Certificate for a Proposed Development)
Granted Lawful development Extension Loft or dormer +1 4 docs -
81 Cornwall Avenue Southall UB1 2TQ
87% historically approved · decision due ~18 Aug
Conversion of single dwelling into 2 x self contained flats (2 X 1 Bedroom) with amenity space, bin/cycle stores & off-street parking, and installation of a roof lantern to the single storey rear extension (Retrospective application)
Awaiting decision New dwelling Extension +1 10 docsSmall domestic -
101 Cornwall Avenue Southall UB1 2TQ
87% historically approved · decision due ~28 Jul
Continue to use the dwellinghouse as HMO (Sui Generis) (Lawful Development Certificate for an Existing Use)
DecidedDomestic -
122 Cornwall Avenue Southall UB1 2TQ
Single storey rear outbuilding (Following the demolition of the rear conservatory)
Granted Householder Extension Demolition 9 docsSmall domestic -
101 Cornwall Avenue Southall UB1 2TQ
Continue to use the dwellinghouse as HMO (Sui Generis) (Lawful Development Certificate for an Existing Use)
Refused Lawful development 15 docsDomestic -
122 Cornwall Avenue Southall UB1 2TQ
Single storey rear outbuilding (Following the demolition of the rear conservatory)
Granted Householder Extension Demolition 9 docsSmall domestic
Other lawful development applications
In Ealing
-
261588CPL Granted
13 Julien Road Ealing W5 4XA
Rear roof extension, and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
-
261863CPE Granted
66 Horn Lane Acton W3 6NT
Continue to use the property as two self-contained flats (Lawful Development Certificate for Existing Use)
-
260202CPL Withdrawn
19 Woodrow Close Perivale UB6 7HU
Change of use of a dwellinghouse (Use Class C3) to Children's Care Home (Use Class C2) (Lawful Development Certificate for a Proposed Development)
-
261805CPE Refused
10A Western Avenue Acton W3 7UD
Existing use of first floor/second floor duplex flat (Use Class C3) as a small House in Multiple Occupation (Use Class C4) (Lawful Development Certificate for an Existing Use)
-
261806CPE Refused
12 Western Avenue Acton W3 7UD
Continue use of ground floor flat as HMO (C4) (Lawful Development Certificate for Existing Use)