Planning application
25 Thorncliffe Road Southall UB2 5RJ
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 incorporating a Juliet balcony; installation of three rooflights to front roofslope and a window within side gable wall (Lawful Development Certificate for a Proposed Development)
As published by the council, reference 261065CPL
Application record
- Reference
- 261065CPL
- Type
- Certificate of Lawfulness - Proposed
- Status
- Permitted Development
- Decision
- Granted As published: Permitted Development
- Received
- 12 Mar 2026
- Validated
- 12 Mar 2026
- Decided
- 29 Apr 2026
- Ward
- Norwood Green
- Decision by
- Delegated Decision
- Postcode
- UB2 5RJ
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 3 applications since 2026: 2 approved, 0 refused.
-
262430HH Awaiting decision
25 Thorncliffe Road Southall UB2 5RJ
Alteration of roof from hip to gable end; rear dormer roof extension (involving conversion of roofspace to habitable use), including installation of a Juliet balcony; installation of three rooflights to front roofslope; part single storey; part two storey side/rear extension; alterations to front, side and rear fenestration including formation of a front porch; single storey rear outbuilding for use as gym/games area/shower room and storage and associated internal and external alterations (following demolition of existing front porch, rear and side extensions)
-
261360PALHE Granted
25 Thorncliffe Road Southall UB2 5RJ
Single storey (max 6.00m deep and max 3.40m high) rear extension (following demolition of existing rear extension) (42 Days Prior Approval Notification Process)
Timeline
Dates from the published record
-
12 Mar 2026
Received by Old Oak and Park Royal Development Corporation
-
29 Apr 2026
Decision issued: Permitted Development
-
10 Aug 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
5 documents on file for this application
- DECISION NOTICE
- OFFICERS REPORT
- APPLICATIONFORMREDACTED
- EXE PRP PLNS ELES
- LCTN BLK PLNS
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Old Oak and Park Royal Development Corporation granted permission on 29 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 0.3 miles
-
25 Thorncliffe Road Southall UB2 5RJ
Alteration of roof from hip to gable end; rear roof extension incorporating a Juliet balcony; installation of three rooflights 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 5 docs -
25 Thorncliffe Road Southall UB2 5RJ
Single storey (max 6.00m deep and max 3.40m high) rear extension (following demolition of existing rear extension) (42 Days Prior Approval Notification Process)
Granted Prior approval Extension Demolition 4 docsSmall domestic -
25 Thorncliffe Road Southall UB2 5RJ
Single storey (max 6.00m deep and max 3.40m high) rear extension (following demolition of existing rear extension) (42 Days Prior Approval Notification Process)
Granted Prior approval Extension Demolition 4 docsSmall domestic -
25 Thorncliffe Road Southall UB2 5RJ
88% historically approved · decision due ~6 Aug
Alteration of roof from hip to gable end; rear dormer roof extension (involving conversion of roofspace to habitable use), including installation of a Juliet balcony; installation of three rooflights to front roofslope; part single storey; part two storey side/rear extension; alterations to front, side and rear fenestration including formation of a front porch; single storey rear outbuilding for use as gym/games area/shower room and storage and associated internal and external alterations (following demolition of existing front porch, rear and side extensions)
Awaiting decision Householder Extension Loft or dormer +2 7 docsSmall domestic -
25 Thorncliffe Road Southall UB2 5RJ
88% historically approved · decision due ~6 Aug
Alteration of roof from hip to gable end; rear dormer roof extension (involving conversion of roofspace to habitable use), including installation of a Juliet balcony; installation of three rooflights to front roofslope; part single storey; part two storey side/rear extension; alterations to front, side and rear fenestration including formation of a front porch; single storey rear outbuilding for use as gym/games area/shower room and storage and associated internal and external alterations (following demolition of existing front porch, rear and side extensions)
Awaiting decision Householder Extension Loft or dormer +2 7 docsSmall domestic -
24 Thorncliffe Road Southall UB2 5RG
Alterations to front porch involving alterations to roof; alterations to side extension roof; first floor side extension; part single, part two storey side/rear extension; with associated external and internal alterations
Granted Householder Extension Roofing 10 docsSmall domestic
Other lawful development applications
In Old Oak and Park Royal Development Corporation
-
263142CPL Granted
42 Gloucester Road Acton W3 8PD
Roof extension to rear (main) roof slope; part rear roof extension to rear outrigger roof slope and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
-
263690CPL Awaiting decision
133 Trinity Road Southall UB1 1ES
Rear roof extension, and installation of three roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
-
262683CPE Granted
1 Speldhurst Road Chiswick W4 1BX
Continuous use of conversion of the roof space to provide additional habitable accommodation, installation of rooflights to the front roof slope and a rear dormer and construction of a single-storey rear extension. External materials to match the existing dwelling (Lawful Development Certificate for an Existing Development)
-
254066CPE Refused
37 Robin Hood Way Greenford UB6 7QN
Use of ground floor flat and first/second floor flat (Use Class C3) as 2 x House in Multiple Occupation (Use Class C4) (Certificate of Lawfulness for an Existing Use)
-
262883CPL Granted
90 Church Road Hanwell W7 3BE
Rear roof extension (following removal of chimney); installation of two rooflight to front roofslope (Lawful Development Certificate for a Proposed Development)