Planning application
18 Helenslea Avenue London NW11 8ND
Works: Extension Loft or dormer Demolition Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Single storey side and rear wrap around extension with side and rear rooflights, following demolition of existing conservatory and garage. New front porch. Alterations to front garden including resurfacing of driveway and replacement of front pathway and step access
As published by the council, reference 25/5014/HSE
Application record
- Reference
- 25/5014/HSE
- Type
- Householder Application
- Status
- Pending Consideration
- Received
- 15 Dec 2025
- Validated
- 15 Dec 2025
- Ward
- Childs Hill
- Postcode
- NW11 8ND
Timeline
Dates from the published record
-
15 Dec 2025
Received by Barnet
-
10 Aug 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 9 February 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 42 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
11 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 householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
-
18 Helenslea Avenue London NW11 8ND
79% historically approved · decision due ~5 Mar
Roof extension involving hip to gable, rear dormer window, 2no. front facing rooflights and new side gable window
Awaiting decision Lawful development Extension Loft or dormer +1 8 docs -
68 Hodford Road London NW11 8NG
79% historically approved · decision due ~11 Mar
Two storey rear extension. Erection of a rear outbuilding. Roof extension involving insertion of 2no. front and rear facing rooflights following removal of the existing rear dormer window. Changes to fenestration
Awaiting decision Lawful development Extension Loft or dormer +1 3 docs -
68 Hodford Road London NW11 8NG
79% historically approved · decision due ~18 Nov
Roof extension including side dormer window, 2no. front and rear facing rooflights and new side gable window. Two storey rear extension. Erection of a rear outbuilding
Awaiting decision Lawful development Extension Loft or dormer +1 3 docs -
26 Dunstan Road London NW11 8AA
Single storey rear infill extension
Granted Householder Extension 13 docsSmall domestic -
52 Hodford Road London NW11 8NJ
70% historically approved · decision due ~30 Sep
Non material amendment to planning permission 25/2474/HSE dated 17/06/2025 for 'Part single, part two storey side and rear extension. Front extension and conversion of the existing garage into habitable room, including insertion of window and door to replace garage door. Replacement of existing windows. Roof extension involving rear dormer window.'. Amendments includes changing material of proposed extension to traditional brick red and reconciling the window dimensions, to balance the rear elevation to have equal sized windows
Awaiting decision Amendments Extension Loft or dormer +1 -
833 - 835 Finchley Road London NW11 8NA
79% historically approved · decision due ~7 Sep
Submission of details of condition 4 (Disabled Parking) 5 (Cycle parking) 6 (Demolition and Construction Management and Logistics Plan) 8 (Survey of Public Highway) 9 (Travel Plan) 10 (Biodiversity Gain Plan) 11 (Habitat Management and Monitoring Plan) 14 (Low Impact Lighting Strategy) 16 (NRMM) 23 (Hard and Soft Landscaping) pursuant to planning permission 24/5181/FUL dated 07/07/2026
Awaiting decision Demolition
Other householder applications
In Barnet
-
26/3235/HSE Awaiting decision
26 Mount Pleasant Barnet EN4 9HH
Replace existing flat roof at ground floor rear elevation with pitched roof and 2no. rooflights
-
26/3222/HSE Awaiting decision
46 Michleham Down London N12 7JN
Single storey side/rear extension with 3no. rooflights following demolition of the existing storage/utility structure. Changes to fenestration
-
26/3219/HSE Awaiting decision
53 Tudor Road Barnet EN5 5NW
First floor rear extension with front and rear rooflights. Roof extension over existing garage
-
26/3210/HSE Awaiting decision
47 Pattison Road London NW2 2HL
New front vehicular access to provide off-street parking. Removal of existing gate and shed, alterations to the existing front boundary wall and installation of close board fencing panels.
-
26/3211/HSE Awaiting decision
25 The Ridgeway London N11 3LG
Single storey rear extension with 3no. rooflights following the demolition of existing conservatory