Planning application
20 St Georges Avenue Southall UB1 1PZ
Works: Extension Loft or dormer
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 two rooflights to front roofslope (Lawful Development Certificate for a Proposed Development)
As published by the council, reference 254839CPL
Application record
- Reference
- 254839CPL
- Type
- Certificate of Lawfulness - Proposed
- Status
- Permitted Development
- Decision
- Granted As published: Permitted Development
- Received
- 29 Dec 2025
- Validated
- 29 Dec 2025
- Decided
- 19 Feb 2026
- Ward
- Dormers Wells
- Decision by
- Delegated Decision
- Postcode
- UB1 1PZ
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 3 applications since 2025: 2 approved, 0 refused.
-
262731FUL Awaiting decision
20 St Georges Avenue Southall UB1 1PZ
Conversion of a single dwellinghouse into 4 self-contained flats; first floor part side/rear extension; alteration of roof from hip to gable end, rear roof extension; installation of two front rooflights; alteration to ground floor rear fenestration; associated refuse and recycling storage, cycle parking, car parking, and private amenity space
-
260826HH Granted
20 St Georges Avenue Southall UB1 1PZ
First floor side extension; first floor rear extension
Timeline
Dates from the published record
-
29 Dec 2025
Received by Old Oak and Park Royal Development Corporation
-
19 Feb 2026
Decision issued: Permitted Development
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
ArchiGrace Limited Agent, registered in Maidenhead
Active · incorporated 2013 · Maidenhead
39 applications on PlanIndex · across 7 councils · 76% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
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.
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 19 February 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
-
20 St Georges Avenue Southall UB1 1PZ
First floor side extension; first floor rear extension
Granted Householder Extension 6 docsDomestic -
20 St Georges Avenue Southall UB1 1PZ
First floor side extension; first floor rear extension
Granted Householder Extension 6 docsDomestic -
20 St Georges Avenue Southall UB1 1PZ
Alteration of roof from hip to gable end; rear roof extension; installation of two rooflights to front roofslope (Lawful Development Certificate for a Proposed Development)
Granted Lawful development Extension Loft or dormer 4 docs -
20 St Georges Avenue Southall UB1 1PZ
75% historically approved · decision due ~2 Sep
Conversion of a single dwellinghouse into 4 self-contained flats; first floor part side/rear extension; alteration of roof from hip to gable end, rear roof extension; installation of two front rooflights; alteration to ground floor rear fenestration; associated refuse and recycling storage, cycle parking, car parking, and private amenity space
Awaiting decision Full applications New dwelling Extension +2 8 docsDomestic -
20 St Georges Avenue Southall UB1 1PZ
75% historically approved · decision due ~2 Sep
Conversion of a single dwellinghouse into 4 self-contained flats; first floor part side/rear extension; alteration of roof from hip to gable end, rear roof extension; installation of two front rooflights; alteration to ground floor rear fenestration; associated refuse and recycling storage, cycle parking, car parking, and private amenity space
Awaiting decision Full applications New dwelling Extension +2 8 docsDomestic -
7 St Georges Avenue Southall UB1 1PZ
Conversion of a dwellinghouse into 3 self-contained flats; conversion of garage into a cycle store involving the insertion of a new door with sidelight windows; single storey side/ rear extension; installation of two dormer rear roof windows; installation of three rooflights to front roofslope
Granted New dwelling Extension +2 18 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)