Planning application
145 Chase Side London N14 5HE
Works: Extension Loft or dormer Windows or glazing
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Roof extension involving extension involving rear dormer window and new side gable window
As published by the council, reference 26/0485/192
Application record
- Reference
- 26/0485/192
- Type
- Proposed Lawful Development Certificate
- Status
- Pending Consideration
- Received
- 9 Feb 2026
- Validated
- 9 Feb 2026
- Ward
- Brunswick Park
- Postcode
- N14 5HE
Timeline
Dates from the published record
-
9 Feb 2026
Received by Barnet
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 6 April 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Barnet took a median of 43 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in Barnet
20 applications on PlanIndex · across 5 councils · 67% 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
5 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 happens while it is decided
The process from here
This application is with Barnet for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
-
186 Chase Side London N14 5HN
Change of use from HMO-house of multiple occupation (Sui Generis) into 7 selfcontained flats (Class C3), involving four storey front/side extension, with part single, part 3 - storey rear extensions, with lower ground floor, conversion of garage into habitable room, extension to roof at sides to form dormers, with front and rear rooflights
Granted Outline New dwelling Extension +1 1 doc -
186 Chase Side London N14 5HN
Change of use from house of multiple occupation (Sui Generis) into 7 self-contained flats, involving four storey front/side extension, with part single, part 3- storey rear extensions, conversion of garage into habitable room, extension to roof at side to form gable end, with front and rear rooflights
Granted Outline New dwelling Extension +1 1 doc -
186 Chase Side London N14 5HN
Change of use from HMO-house of multiple occupation (Sui Generis) into 7 self-contained flats (Class C3), involving four storey front/side extension, with part single, part 3- storey rear extensions, with lower ground floor, conversion of garage into habitable room, extension to roof at sides to form dormers, with front and rear rooflights.
Granted Full applications New dwelling Extension +1 23 docs -
11 Oakdale London N14 5RA
Submission of details of condition 5 (Driveway) pursuant to planning permission 23/4870/HSE dated 24/01/2024
Granted Conditions 4 docs -
Land Rear Of 184 Chase Side London N14 5HN
Non-material amendment to 18/04262/FUL to allow two detached houses.
Refused Amendments 8 docs -
167 Chase Side London N14 5HE
58% historically approved · decision due ~12 Oct
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.80 metres and eaves height of 2.90 metres, following demolition of the existing rear extension and conservatory.
Awaiting decision Prior approval Extension DemolitionSmall domestic
Other lawful development applications
In Barnet
-
26/2679/192 Decided
21 Myddelton Park London N20 0JH
Single storey rear extension and increase in ridge height of existing rear outrigger (Amended description).
-
26/1907/191 Decided
8 Golders Manor Drive London NW11 9HT
Use of the property as a self-contained residential unit at ground floor level and the first and second floors as a 4-bedroom, 4-person House in Multiple Occupation (Sui Generis) (AMENDED DESCRIPTION)
-
26/2059/192 Decided
Low Ridge Rowley Lane Barnet EN5 3HS
Erection of a rear outbuilding
-
26/2066/192 Decided
355 Hendon Way London NW4 3NB
Roof extension involving rear dormer window and 3no. front facing rooflights. Removal of chimney on rear elevation (AMENDED DESCRIPTION)
-
26/1663/192 Decided
152 Deans Lane Edgware HA8 9NT
Change of use from single family dwellinghouse (Class C3a) to supported living accommodation Class C3b)