Planning application
26/00623/CPD
103 Gaston Way Shepperton TW17 8ET
Proposal
Certificate of Lawfulness for proposed single storey rear extension
As published by the council, reference 26/00623/CPD
Timeline
Dates from the published record
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15 Jun 2026
Received by Spelthorne
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22 Jun 2026
Validated
Checked as complete and ready for consideration.
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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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24/01117/FUL Granted
137 Green Lane Shepperton TW17 8DY
Change of use of rear outbuilding from storage unit to office and external alterations to replace garage door with a window and add rooflights.
-
21/00962/HOU Granted
24 Catlin Crescent Shepperton TW17 8EU
Erection of a single storey side and rear extension (following the demolition of the existing garage)
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21/00961/CPD Granted
24 Catlin Crescent Shepperton TW17 8EU
Certificate of Lawfulness for the proposed development of loft alterations to include a hip to gable alteration, a rear facing dormer, 2 no. roof lights within the front roof slope and the installation of a side window.
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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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26/00564/HOU Granted
141 Gaston Way Shepperton TW17 8ET
Single storey rear extension and garage conversion with associated alterations to front elevation
-
21/00872/CPD Granted
47 Gaston Way Shepperton TW17 8EZ
Certificate of Lawfulness for the proposed development of roof alterations including the installation of a rear facing dormer and two front roof lights.
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
-
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
-
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.