Planning application
26/1569/192
Long Pond House 27 Totteridge Common London N20 8LR
Proposal
Enlargement, improvement, and alteration to the existing dwellinghouse, including 2no. single storey rear extensions and a single storey basement beneath the original dwellinghouse
As published by the council, reference 26/1569/192
Timeline
Dates from the published record
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27 Apr 2026
Received by Barnet
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29 Apr 2026
Validated
Checked as complete and ready for consideration.
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18 May 2026
Decision issued: Lawful
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25 Jul 2026
Added to PlanIndex
After the decision
The process from here
The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.
If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.
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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26/1365/S73 Awaiting decision
Burnhams 25 Totteridge Common London N20 8LR
Variation of condition 11 (Use) of planning permission reference 17/3135/FUL dated 13/07/17 for 'Demolition of the existing house and the erection of a two storey detached dwelling with basement and rooms in roofspace and detached garage. Alterations to hard and soft landscaping.' Variation to include changes to the wording of condition 11 to read as follows "Notwithstanding the provisions of the Town and Country Planning (General Permitted Development) Order 2015 (or any order revoking and re-enacting that Order with or without modification), no development otherwise permitted by any of Classes A, C, D, E, F, G or H of Part 1 of Schedule 2 of that Order shall be carried out within the curtilage of the dwelling hereby approved. For the purposes of applying Class E, the restriction shall only be applicable to land within a distance of 60m measured from the rear elevation of the dwelling, after which point the usual limitations of Class E will apply."
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26/2286/192 Awaiting decision
Long Pond House 27 Totteridge Common London N20 8LR
Enlargement, improvement, and alteration to the existing dwellinghouse, including 2no. single storey rear extensions and a single storey basement beneath the original dwellinghouse
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26/1195/CON Granted
Ellern Mede 31 Totteridge Common London N20 8LS
Submission of details of condition 15 (Excavation for Services) 20 (Foundations) 24 (Materials - Pool Building and Garage) pursuant to planning permission 24/2639/FUL dated 11/11/2024
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26/1192/CON Granted
Ellern Mede 31 Totteridge Common London N20 8LS
Submission of details of condition 6 (Materials - Pool Building and Garage) pursuant to planning permission 24/2640/LBC dated 11/11/2024
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26/1656/LBC Awaiting decision
Ellern Mede 31 Totteridge Common London N20 8LS
Change of use to single dwelling house including single storey extensions to the south and east elevations of the main building. Erection of separate secure garage with parking for two vehicles and cycle storage, gardeners workshop and equipment store, bin store and ancillary residential accommodation. Removal of existing external fire escape, Erection of new Entrance Security Gates and Pillars. Replacement of existing roof and alterations to existing rear dormer windows of main building. Alterations to existing fenestration. Alterations to the existing hard and soft landscaping to front and rear following the demolition of existing single storey side and rear projections, rear conservatory. (Amendment to 24/2640/LBC)
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26/1191/S73 Awaiting decision
Ellern Mede 31 Totteridge Common London N20 8LS
Variation of condition 1 (Approved Plans) of planning permission reference 24/2639/FUL dated 11/11/24 for 'Change of use to single dwelling house including single storey extensions to the south and east elevations of the main building. Erection of pool building to the north of the main building. Erection of separate secure garage with parking for two vehicles and cycle storage, gardeners workshop and equipment store, bin store and ancillary residential accommodation. Removal of existing external fire escape, Erection of new Entrance Security Gates and Pillars. Replacement of existing roof and alterations to existing rear dormer windows of main building. Alterations to existing fenestration. Alterations to the existing hard and soft landscaping to front and rear following the demolition of existing single storey side and rear projections, rear conservatory and detached classroom building.' Variation to include: Omission of the swimming pool building; Reduced footprint and massing of the approved extensions; Retention of and reuse of the existing schoolhouse; Minor internal and external alterations and repairs
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