Planning application
26/00621/CLD
58 Templedene Avenue Staines-upon-Thames TW18 1LW
Proposal
Certificate of Lawfulness for existing use or development of a loft conversion to include hip to gable extension, the installation of a rear facing dormer and 2 no. roof lights within the front roof slope.
As published by the council, reference 26/00621/CLD
Timeline
Dates from the published record
-
12 Jun 2026
Received by Spelthorne
-
30 Jun 2026
Validated
Checked as complete and ready for consideration.
-
30 Jul 2026
Added to PlanIndex
-
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
-
21/00919/CPD Granted
4 Ash Grove Staines-upon-Thames TW18 1JD
Certificate of Lawfulness for the proposed development of loft alterations to include a hip to gable alteration, a rear facing dormer with Juliet Balcony, 3 no. roof lights within the front roof slope.
-
26/00586/CPD Awaiting decision
36 Hurstdene Avenue Staines-upon-Thames TW18 1JQ
Certificate of Lawfulness for the proposed development of a loft conversion to include hip to gable extension, the installation of a rear facing dormer with Juliet balcony and 2 no. roof light within the front roof slope.
-
26/00167/FUL Awaiting decision
135 And 137 Brightside Avenue Staines-upon-Thames TW18 1NH
Retrospective application for retention of roof extension including raised ridge height, rear facing dormers and 6 no roof lights on front roof plane. Part two storey part single storey side extension and single storey front and rear extension to 137 Brightside Avenue.
-
21/00965/HOU Granted
3 Hazel Grove Staines-upon-Thames TW18 1JJ
Erection of a single storey rear extension.
-
26/00276/CPD Awaiting decision
20 Ash Grove Staines-upon-Thames TW18 1JD
Certificate of lawfulness for proposed use of dwellinghouse (Use Class C3a) as Children's Home for up 3 no. adults.
-
21/01046/CPD Granted
6 Templedene Avenue Staines-upon-Thames TW18 1LP
Certificate of Lawfulness for proposed development of a single storey rear extension following the demolition of the existing conservatory.
Other lawful development applications
In Spelthorne
-
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
-
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.)
-
26/00787/CPD Awaiting decision
91 Metcalf Road Ashford TW15 1HB
Certificate of Lawfulness for the proposed erection of a front porch.