Planning application
54 Derwent Avenue Barnet EN4 8LZ
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 rear dormer window with juliette balcony
As published by the council, reference 26/2191/192
Application record
- Reference
- 26/2191/192
- Status
- Lawful
- Received
- 12 Jun 2026
- Validated
- 12 Jun 2026
- Postcode
- EN4 8LZ
Timeline
Dates from the published record
-
12 Jun 2026
Received by Barnet
-
25 Jul 2026
Added to PlanIndex
-
9 Aug 2026
Status changed to Lawful
Previously Pending Consideration.
-
Decision
Awaiting decision
Decision expected by 7 August 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 44 days over the applications it decided in the last year.
What happens while it is decided
This application is with Barnet for determination, against a statutory target of eight weeks. Over the last year Barnet's median decision took 44 days. More in our guide to how long planning decisions take.
About this record
The published feed does not state which type of application this is; the register entry on Barnet's portal will say. Our guide explains the common types.
Nearby applications
Within 500 metres
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73 Derwent Avenue Barnet EN4 8LY
Single storey side extension and alterations to existing rear extension including raising of the roof height (AMENDED DESCRIPTION)
Granted Householder Extension 6 docsSmall domestic -
89 Avondale Avenue Barnet EN4 8NA
77% historically approved · decision due ~16 Feb
Part single, part two storey side and rear extension. New front porch
Awaiting decision Householder Extension 9 docsSmall domestic -
81 Avondale Avenue Barnet EN4 8NA
Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window
Granted Lawful development Extension Loft or dormer +1 7 docs -
42 Gallants Farm Road Barnet EN4 8ES
Variation of condition 1 (Approved Plans) of planning permission reference 24/2138/HSE dated 30/08/24 for 'Single storey side and rear extension with 4no rooflights, following demolition of the existing outrigger and shed.' Variation to include increasing the side extension by 1.2 metres to the front
Granted Conditions Extension Loft or dormer +1 10 docsSmall domestic -
49 Haslemere Avenue Barnet EN4 8EU
77% historically approved · decision due ~19 Jun
Single storey rear extension following demolition of the existing lean-to. New front porch
Awaiting decision Householder Extension Demolition 7 docsSmall domestic -
46 Haslemere Avenue Barnet EN4 8EZ
Roof extension involving hip to gable, replacement rear dormer window with juliette balcony and new side gable window
Granted Lawful development Extension Loft or dormer +1 11 docs