Planning application
1 Gonville Crescent Northolt UB5 4SH
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 incorporating juliet balcony and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
As published by the council, reference 261491CPL
Application record
- Reference
- 261491CPL
- Type
- Certificate of Lawfulness - Proposed
- Status
- Permitted Development
- Decision
- Granted As published: Permitted Development
- Received
- 8 Apr 2026
- Validated
- 8 Apr 2026
- Decided
- 28 May 2026
- Ward
- Northolt Mandeville
- Decision by
- Delegated Decision
- Postcode
- UB5 4SH
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 2 applications since 2026: 2 approved, 0 refused.
-
261492PALHE Granted
1 Gonville Crescent Northolt UB5 4SH
Single storey (Max 6m deep and Max 3.40m high) rear extension (42 days Prior Notification Process)
Timeline
Dates from the published record
-
8 Apr 2026
Received by Old Oak and Park Royal Development Corporation
-
28 May 2026
Decision issued: Permitted Development
-
27 Jul 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
3 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 28 May 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
-
1 Gonville Crescent Northolt UB5 4SH
Single storey (Max 6m deep and Max 3.40m high) rear extension (42 days Prior Notification Process)
Granted Prior approval Extension 6 docsSmall domestic -
1 Gonville Crescent Northolt UB5 4SH
Single storey (Max 6m deep and Max 3.40m high) rear extension (42 days Prior Notification Process)
Granted Prior approval Extension 6 docsSmall domestic -
1 Gonville Crescent Northolt UB5 4SH
Alteration of roof from hip to gable end; rear roof extension incorporating juliet balcony and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
Granted Lawful development Extension Loft or dormer 3 docs -
1 And 1A Gonville Crescent Northolt UB5 4SH
Part single storey; part two storey rear extension to the existing dwelling (following demolition of existing conservatory and outbuilding); including roof extension incorporating alteration from hip to gable end and rear dormer roof extension; Construction of an attached two storey dwellinghouse (involving conversion of roofspace to habitable use) (following demolition of existing side extension), together with associated amenity space, cycle parking and refuse/recycling storage (following demolition of the existing side extension); replacement and installation of front door and windows to front and rear of existing dwellinghouse.
Refused Extension Loft or dormer +2 16 docsSmall domestic -
1 And 1A Gonville Crescent Northolt UB5 4SH
Part single storey; part two storey rear extension to the existing dwelling (following demolition of existing conservatory and outbuilding); including roof extension incorporating alteration from hip to gable end and rear dormer roof extension; Construction of an attached two storey dwellinghouse (involving conversion of roofspace to habitable use) (following demolition of existing side extension), together with associated amenity space, cycle parking and refuse/recycling storage (following demolition of the existing side extension); replacement and installation of front door and windows to front and rear of existing dwellinghouse.
Refused Full applications Extension Loft or dormer +2 16 docsSmall domestic -
77 Castle Road Northolt Middlesex UB5 4SF
Two storey side extension, forming a single dwelling house adjoining existing terrace, associated cycle and car parking, refuse storage
Granted Full applications Extension 13 docsDomestic
Other lawful development applications
In Old Oak and Park Royal Development Corporation
-
262788CPL Granted
7 Kent Avenue West Ealing W13 8BE
Alteration of roof from hip to gable end (following removal of chimney stack), rear roof extension incorporating a Juliet balcony; installation of three front rooflights (Lawful Development Certificate for a Proposed Development)
-
262782CPL Granted
28 Noel Road Acton W3 0JX
Alteration of roof from hip to gable end; rear roof extension; installation of two rooflights to front roofslope; part single, part two storey rear extension; single storey side extension; installation of one side window to gable (Lawful Development Certificate for a Proposed Development)
-
262244CPL Refused
79 Somerset Road Southall UB1 2UE
Single storey detached garden outbuilding for use as gym (Lawful Development Certificate for a Proposed Development)
-
262727CPL Granted
32 Beresford Avenue Hanwell W7 3AL
Alteration of roof from hip to gable end; rear roof extension and installation of two roof lights to front roofslope (Lawful Development Certificate for a Proposed Development)
-
262518CPL Granted
64 Culmington Road West Ealing W13 9NH
Alteration of roof from hip to gable end; rear roof extension incorporating Juliet balcony; installation of window to side gable; installation of four rooflights to front roofslope; replacement of side gable window (Lawful Development Certificate for a Proposed Development)