Planning application
26/0696
10 Chippenham Avenue, Wembley, HA9 6NQ
Proposal
Certificate of lawfulness for proposed rear dormer extension, hip to gable roof extension, 1x window to side elevation and 1x front rooflight to the dwellinghouse.
As published by the council, reference 26/0696
Timeline
Dates from the published record
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18 Mar 2026
Received by Brent
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30 Mar 2026
Validated
Checked as complete and ready for consideration.
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20 May 2026
Decision issued: Certificate of Lawfulness - Granted
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25 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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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26/0695 Granted
10 Chippenham Avenue, Wembley, HA9 6NQ
Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6.00m Maximum height - 3.40m Eaves height - 3.00m
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20/3199 Granted
19 Chippenham Avenue, Wembley, HA9 6NH
Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.5m Eaves height - 3m
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26/1631 Awaiting decision
48 Brent Way, Wembley, HA9 6JN
Proposed first floor side and part rear extension, hip to gable extension and rear dormer window with 3x front rooflights to the dwellinghouse.
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20/3282 Refused
Oakington Manor Primary School, Oakington Manor Drive, Wembley, HA9 6NF
Details pursuant to conditions 5 (materials), 8 (external lighting), 10 (disabled parking bays) and 11 (photovoltaic panels) of full planning permission reference 17/3940 dated 18th January 2018 for demolition of parts of the existing school buildings and erection of new part single storey, first and second floor extensions to school to be taken place across a phased five year construction programme
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22/3715 Granted
243 Oakington Manor Drive, Wembley, HA9 6NF
Non material amendment to allow: Removal of proposed render to existing brick walls to retain brickwork at first floor level of Householder reference 22/2055 dated 4 August, 2022, for Proposed roof alterations including raising of roof ridge height and reduction in size of existing rear dormer, new render to existing brick walls and cladding to rear dormer; and the retention of existing part single, part two storey side and rear extension, rooflights to side and rear roofslopes, alterations to fenestration at the rear elevation to dwellinghouse
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20/2479 Granted
141 Monks Park, Wembley, HA9 6JP
Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 4.5m Maximum height - 3m Eaves height - 3m
Other lawful development applications
In Brent
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26/1465 Granted
8 Roe Green, London, NW9 0NY
Certificate of lawfulness for proposed hip to gable extension and rear dormer window with 3x front rooflights to the dwellinghouse.
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26/1370 Granted
45 Holmstall Avenue, Edgware, HA8 5JQ
Certificate of lawfulness for proposed use of dwellinghouse as a childrens' residential home
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26/1260 Granted
18 Hartland Road, London, NW6 6BJ
Certificate of lawfulness for proposed air source heat pump to rear of dwellinghouse
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26/1901 Awaiting decision
176 Bridgewater Road, Wembley, HA0 1AR
Certificate of lawfulness for proposed single-storey rear extension, rear dromer extension and 2x front rooflights to dwellinghouse.
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26/1353 Granted
4 Hardinge Road, London, NW10 3PJ
Certificate of lawfulness for proposed conversion of existing garage into a habitable room with replacement of garage door with window to side elevation and removal of ground floor side window of the dwellinghouse