Planning application
80 Colin Crescent London NW9 6EY
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
Roof extension involving hip to gable, rear box dormer with juliette balcony and 2no. front facing rooflights
As published by the council, reference 26/0161/192
Application record
- Reference
- 26/0161/192
- Type
- Proposed Lawful Development Certificate
- Status
- Pending Consideration
- Received
- 15 Jan 2026
- Validated
- 15 Jan 2026
- Ward
- Colindale South
- Postcode
- NW9 6EY
Site history
Applications at this address on the Barnet register
This site has had 4 applications since 2026: 1 approved, 0 refused.
-
26/0878/HSE Granted
80 Colin Crescent London NW9 6EY
Single storey rear extension
-
26/0430/192 Awaiting decision
80 Colin Crescent London NW9 6EY
Roof extension involving hip to gable, rear boxed dormer with juliette balcony and 2no. front facing rooflights
-
26/0162/PNH Awaiting decision
80 Colin Crescent London NW9 6EY
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 2.98 metres and eaves height of 2.73 metres, following demolition of existing rear outrigger
Timeline
Dates from the published record
-
15 Jan 2026
Received by Barnet
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 12 March 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 Ruislip
42 applications on PlanIndex · across 13 councils · 69% 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
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.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet decided lawful development applications in a median of 28 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 500 metres
-
80 Colin Crescent London NW9 6EY
79% historically approved · decision due ~2 Apr
Roof extension involving hip to gable, rear boxed dormer with juliette balcony and 2no. front facing rooflights
Awaiting decision Lawful development Extension Loft or dormer 3 docs -
80 Colin Crescent London NW9 6EY
58% historically approved · decision due ~16 Mar
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 2.98 metres and eaves height of 2.73 metres, following demolition of existing rear outrigger
Awaiting decision Prior approval Extension Demolition 5 docsSmall domestic -
Small domestic
-
82 Colin Crescent London NW9 6EY
77% historically approved · decision due ~15 May
Single storey rear infill extension with associated access steps and railing. Single storey front porch extension
Awaiting decision Householder Extension 6 docsSmall domestic -
7 Crossway London NW9 6EN
Roof extension involving hip to gable, rear dormer window with juliette balcony and 3no. front facing rooflights. Erection of a rear outbuilding
Decided Lawful development Extension Loft or dormer +1 4 docs -
115 Colin Crescent London NW9 6ET
Single storey rear extension with a proposed depth of 6.00 metres, maximum height of 3.00 metres and eaves height of 3.00 metres. Following demolition of existing extension and garage.
Granted Prior approval Extension Demolition 3 docsSmall 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)