Planning application
26/1956/192
49 Michleham Down London N12 7JJ
Proposal
Roof extension involving rear dormer window with juliette balcony, 4no. front facing rooflights and new side gable window
As published by the council, reference 26/1956/192
Timeline
Dates from the published record
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26 May 2026
Received by Barnet
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25 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What 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
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26/1953/HSE Awaiting decision
49 Michleham Down London N12 7JJ
Single storey rear extension. Changes to fenestration
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26/0973/HSE Granted
3 Rodmell Slope London N12 7BX
Single storey side and rear extension following demolition of the existing garage. Alterations to the existing patio area. New front porch. Insertion of solar panels to roof. Alterations to the existing driveway including new front hardstanding to provide additional parking space
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26/0983/HSE Awaiting decision
71 Southover London N12 7HG
Conversion of garage into habitable room including insertion of windows to replace existing garage doors and addition of new pitched roof with rooflight. Two storey side extension following demolition of existing store. Roof extension including 1no. side dormer window, 1no. rear dormer window and 2no. front facing rooflights and increase in ridge height. Installation of solar panels. Alterations to ground floor rear projection including changes to fenestration and insertion of rooflights to flat roof. Addition of 1no. AC condenser unit and 1no. Air Source Heat Pump to side elevation. Removal of chimneys
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26/1471/HSE Awaiting decision
48 Lullington Garth London N12 7BY
Erection of a new garage with with arch roof and steps down with associated raised platform to garden following demolition of the existing garage Alterations and extension to existing raised rear patio area and acess steps. New privacy screens. Undercroft storage
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26/1028/S73 Granted
11 Singleton Scarp London N12 7AR
Variation of condition 1 (Approved plans) of planning permission 25/1669/HSE dated 06/06/2025 for Single storey side and rear extension with 4no. flat rooflights following demolition of the existing shed, garage and conservatory. New front access steps and front door. Variation to include widening the single storey side and rear extension
Other lawful development applications
In Barnet
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26/2836/192 Awaiting decision
20 Derwent Avenue Barnet EN4 8LX
Roof extension involving rear dormer window with juliette balcony
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26/2815/192 Awaiting decision
18 Boyne Avenue London NW4 2JN
Roof extension involving rear dormer window and 2no. front facing rooflights
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26/2824/192 Awaiting decision
41 Greenway Close London N20 8ES
Erection of a rear outbuilding
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26/2809/192 Awaiting decision
43A Clifford Road Barnet EN5 5PD
Single storey rear extension following the demolition of existing canopy
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26/2806/192 Awaiting decision
14 Lincoln Road London N2 9DL
Roof extension involving 1no. rear dormer window over main roof with juliette balcony and 1no. rear dormer over outrigger roof and 3no. front facing rooflights. Alterations to existing lean-to to form rear extension with flat roof with parapet walls and 1no. skylight. Alterations to fenestration and doors