Planning application
26/00741/CPD
16 Ashridge Way Sunbury-on-Thames TW16 7RW
Proposal
Certificate of Lawfulness for the proposed erection of a single storey rear extension.
As published by the council, reference 26/00741/CPD
Timeline
Dates from the published record
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15 Jul 2026
Received by Spelthorne
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30 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 Spelthorne 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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26/00742/PDH Awaiting decision
16 Ashridge Way Sunbury-on-Thames TW16 7RW
Prior Approval Notification for a single storey rear extension extending 4 metres beyond the rear wall of the original dwellinghouse with a maximum height and eaves height of 3 metres. (As shown on plans LOCATION PLAN received 16.07.2026 and 2260703-02, 2260703-2, 2260703-01, 2260703-1, received 15.07.2026)
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24/01088/FUL Refused
6 Ashridge Way Sunbury-on-Thames TW16 7RW
Subdivision of plot along with erection of a two storey side extension to accommodate stairs/entrance and erection of a single storey rear extension along with the installation of a rear facing Juliet balcony to 1st floor with internal changes to allow conversion of existing house to form 2 flats with associated bins, cycle parking and rear amenity space (following demolition of existing single storey rear extension).
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23/00135/HOU Granted
36 Heatherlands Sunbury-on-Thames TW16 7QU
Raising of front flat roof height on front extension and changes to rear fenestration.
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26/00770/FUL Awaiting decision
4 Burgoyne Road Sunbury-on-Thames TW16 7PW
Change of use from C4 (6-person HMO) to sui generis to 7-person HMO
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26/00620/RVC Awaiting decision
58 Wolsey Road Sunbury-on-Thames TW16 7TY
Variation to Condition 3 (Approved Plans) relating to planning permission 25/00536/HOU for the erection of a single storey side extension. Remove set in from flank boundary.
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26/00525/CPD Granted
136 Vicarage Road Sunbury-on-Thames TW16 7TZ
Certificate of Lawfulness for the proposed loft conversion facilitated by a hip to gable extension and rear facing dormer. 3 no. rooflights on front roof slope.
Other lawful development applications
In Spelthorne
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26/00604/CPD Granted
13 Lucie Avenue Ashford TW15 2BH
Certificate of lawfulness for proposed rear dormer loft conversion with 3 front roof windows
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26/00585/CPD Granted
55 Gordon Close Staines-upon-Thames TW18 1AP
Certificate of lawfulness for proposed dormer in rear roof and hip to gable extension and two rooflights within the front roof slope
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26/00563/CPD Granted
141 Gaston Way Shepperton TW17 8ET
Certificate of lawfulness for loft conversion with rear flat roof dormer
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26/00571/CPD Granted
21 Arnold Road Laleham Staines-upon-Thames TW18 1LY
Certificate of Lawfulness for proposed hip to gable roof alteration with rear facing dormer and 2 no. roof lights on front roof plane (As shown on Location plan and plans no's MATTHEW/PLAN/001, /002, /003, /004 rec'd 01.06.2026.)
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26/00787/CPD Awaiting decision
91 Metcalf Road Ashford TW15 1HB
Certificate of Lawfulness for the proposed erection of a front porch.