Planning application
77 Castle Road Northolt UB5 4SF
Works: Extension Loft or dormer
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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)
As published by the council, reference 261607CPL
Application record
- Reference
- 261607CPL
- Type
- Certificate of Lawfulness - Proposed
- Status
- Pending Consideration
- Received
- 16 Apr 2026
- Validated
- 3 Aug 2026
- Ward
- Northolt Mandeville
- Postcode
- UB5 4SF
Site history
Applications at this address on the Old Oak and Park Royal Development Corporation register
This site has had 3 applications since 2026: 1 approved, 1 refused.
-
262402PALHE Granted
77 Castle Road Northolt UB5 4SF
Single storey (Max 6m deep and Max 3.10m high) rear extension (42 days Prior Notification Process)
-
261177PALHE Refused
77 Castle Road Northolt UB5 4SF
Single storey rear extension (max 6m deep and max 3.10m high) (42 Days Prior Approval Notification Process)
Timeline
Dates from the published record
-
16 Apr 2026
Received by Old Oak and Park Royal Development Corporation
-
3 Aug 2026
Validated
Checked as complete and ready for consideration.
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 28 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Old Oak and Park Royal Development Corporation took a median of 55 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
London Residential Architects Limited Agent, an architecture practice registered in Horncastle
Active · incorporated 2016 · Horncastle
44 applications on PlanIndex · across 9 councils · 71% 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
- APPLICATIONFORMREDACTED
- LOCATION BLOCK PLAN
- COMPOSITE100326-101 ELEVATIONS DORMER
- COMPOSITE100326-103 PLANSREAR DORMER
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Old Oak and Park Royal Development Corporation for determination, against a statutory target of eight weeks. Over the last year Old Oak and Park Royal Development Corporation decided lawful development applications in a median of 53 days. More in our guide to how long planning decisions take.
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
-
77 Castle Road Northolt UB5 4SF
Single storey (Max 6m deep and Max 3.10m high) rear extension (42 days Prior Notification Process)
Granted Prior approval Extension 6 docsSmall domestic -
77 Castle Road Northolt UB5 4SF
Single storey (Max 6m deep and Max 3.10m high) rear extension (42 days Prior Notification Process)
Granted Extension 6 docsSmall domestic -
77 Castle Road Northolt UB5 4SF
86% historically approved · decision due ~28 Sep
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)
Awaiting decision Extension Loft or dormer 4 docs -
114 Castle Road Northolt UB5 4SF
88% historically approved · decision due ~6 May
Single storey rear extension with flat roof, new white upvc window and bi-fold doors with 2no white upvc roof lights over and proposed front porch with pitched roof over, tiles to match existing main roof and front door to match existing
Awaiting decision Householder Extension Loft or dormer +1 5 docsSmall domestic -
114 Castle Road Northolt UB5 4SF
88% historically approved · decision due ~6 May
Single storey rear extension with flat roof, new white upvc window and bi-fold doors with 2no white upvc roof lights over and proposed front porch with pitched roof over, tiles to match existing main roof and front door to match existing
Awaiting decision Householder Extension Loft or dormer +1 5 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
-
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)