Planning application
26/0926/192
8 Thyra Grove London N12 8HB
Proposal
Roof extension involving hip to gable, rear dormer window and 3no. front facing rooflights
As published by the council, reference 26/0926/192
Timeline
Dates from the published record
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11 Mar 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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26/1801/ADV Awaiting decision
273 Ballards Lane London N12 8NR
Installation of various signage including 4no. internally illuminated LED building letters to front and side elevation. 2no. non illuminated fascia signs, 1no. internally illuminated totem pile. Installation of 1no. frosted W, 4no. window vinyls Installation of 3no. wall mounted signs and various car park signage
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26/1132/FUL Granted
273 Ballards Lane London N12 8NR
Removal of existing plant units at 1st floor roof level and installation of 1no. new Dry Air Cooler unit and 8no. new LT & HT CUBO Condenser units at existing 1st floor roof level
-
26/1386/FUL Awaiting decision
273 Ballards Lane London N12 8NR
Part removal of the existing façade shopfront ground floor level and installation of a new On Demand Grocery Hatch including replacement of window
-
26/0883/192 Decided
137 Nether Street London N12 8ES
Single storey side extension
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26/1063/S73 Awaiting decision
12A Hutton Grove London N12 8DT
Variation of condition 21 (M4 (2) ) pursuant to planning permission 25/3690/FUL dated 19/01/2026 for `Demolition of existing buildings and construction of a new part-two part-three storey building to form 6no self-contained flats with associated parking, refuse/recycling, cycle storage and landscaping.` Amendments to the wording of the condition
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26/1129/CON Awaiting decision
12A Hutton Grove London N12 8DT
Submission of details of condition 3 (Materials) 4 (Demolition and Construction Management and Logistics Plan) 6 (Contaminated Land) 10 (Tree Protection & Method Statement) 14 (Vehicle Turntable) pursuant to planning permission 25/3690/FUL dated 19/01/2026
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
-
26/2815/192 Awaiting decision
18 Boyne Avenue London NW4 2JN
Roof extension involving rear dormer window and 2no. front facing rooflights
-
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