Planning application
36 Oakleigh Avenue London N20 9JJ
Works: Extension Loft or dormer Domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Two storey front extension. Extensions and alterations to existing roof form, new gable ends and 2no. front facing rooflights
As published by the council, reference 25/4312/HSE
Application record
- Reference
- 25/4312/HSE
- Type
- Householder Application
- Status
- Refused
- Decision
- Refuse
- Received
- 28 Oct 2025
- Validated
- 6 Nov 2025
- Decided
- 24 Dec 2025
- Ward
- Whetstone
- Decision by
- Delegated Decision
- Postcode
- N20 9JJ
Timeline
Dates from the published record
-
28 Oct 2025
Received by Barnet
-
6 Nov 2025
Validated
Checked as complete and ready for consideration.
-
24 Dec 2025
Decision issued: Refuse
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in Berkhamsted
289 applications on PlanIndex · across 28 councils · 78% 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
9 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 refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
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
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40 Oakleigh Avenue London N20 9JJ
77% historically approved · decision due ~3 Jun
Roof extension involving hip to gable, 3no. rear box dormers with juliette balcony to middle dormer, 3no. front facing rooflights and new side gable window
Awaiting decision Householder Extension Loft or dormer +1 5 docsDomestic -
30 Oakleigh Avenue London N20 9JH
1 x Large Oak - Remove the two lowest branches and trunk growth. Remove major dead wood. Standing in Group G124 of Tree Preservation Order.
Granted Trees 4 docs -
30 Oakleigh Avenue London N20 9JH
1 x Large Oak - Remove three large dead branches in the low/mid canopy overhanging the neighbouring garden. Standing in Group G124 of Tree Preservation Order. (Exempt works)
Decided Trees 4 docs -
59 Oakleigh Avenue London N20 9JG
77% historically approved · decision due ~20 Mar
Single storey rear extension with two lantern rooflights, first floor side extension above the existing garage, and infill extension to the front between the garage and main dwelling at ground level. Extension to the existing second floor with associated roof alterations including 2no. side and 2no. front facing rooflights and new lantern rooflight. Re-location of existing windows and removal of chimney stack on side elevation
Awaiting decision Householder Extension Loft or dormer +2 4 docsSmall domestic -
3 Oakleigh Park South London N20 9JS
71% historically approved · decision due ~20 Aug
Non material amendment to planning permission 26/1023/HSE dated 11/05/2026 for 'Single storey rear extension. Changes to fenestration including new side door and installation of double width garage door to return garage to original use' Amendments includes adding a window to the right hand elevation of the rear extension
Decided Amendments Extension Windows or glazingSmall domestic
Other householder applications
In Barnet
-
26/3249/HSE Awaiting decision
19 Rushdene Avenue Barnet EN4 8EN
New front vehicular access and hardstanding to provide off-street parking space. New retaining wall following demolition of the existing wall and raised planted beds
-
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.