Planning application
17 Templedene Avenue Staines-upon-Thames TW18 1LH
Works: Extension Demolition Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Certificate of Lawfulness for the proposed development for proposed erection of a single storey rear extension and the erection of a single storey detached outbuilding at the rear (following partial demolition of existing single storey side/rear element towards the rear).
As published by the council, reference 25/01339/CPD
Application record
- Reference
- 25/01339/CPD
- Type
- Cert. of Lawful Proposed Use and Dev
- Status
- Decided
- Decision
- Grant Cert Lawful Prop Use/Dev
- Received
- 7 Nov 2025
- Validated
- 7 Nov 2025
- Decided
- 5 Dec 2025
- Ward
- Riverside And Laleham
- Parish
- Staines South And Ashford West ED
- Decision by
- Delegated Decision
- Postcode
- TW18 1LH
Timeline
Dates from the published record
-
7 Nov 2025
Received by Spelthorne
-
5 Dec 2025
Decision issued: Grant Cert Lawful Prop Use/Dev
-
11 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Agent on file
56 applications on PlanIndex · across 12 councils · 85% granted
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
14 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat 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
-
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.
Granted Lawful development Extension Demolition 9 docsSmall domestic -
3 Beechwood Avenue Staines-upon-Thames TW18 1JH
Garage conversion into habitable room and changes to ground floor rear fenestration.
Granted Householder Windows or glazing 10 docsSmall domestic -
3 Hazel Grove Staines-upon-Thames TW18 1JJ
Erection of a single storey rear extension.
Granted Householder Extension 5 docsSmall domestic -
37 Pavilion Gardens Staines-upon-Thames TW18 1LS
Erection of an outbuilding in rear garden, for use as gym.
Granted Householder 8 docsSmall domestic -
1 Pavilion Gardens Staines-upon-Thames TW18 1LS
Certificate of Proposed Development for a hip to gable loft conversion with rear dormer and three roof lights on front roof slope
Granted Lawful development Loft or dormer 16 docs -
95 Pavilion Gardens Staines-upon-Thames TW18 1LT
Single storey rear extension, first floor front/side extension
Granted Householder Extension 15 docsSmall domestic
Other lawful development applications
In Spelthorne
-
26/00452/CLD Granted
177A Feltham Road Ashford TW15 1BB
Certificate of Lawfulness for existing use of the ground floor flat as a small HMO (Use Class C4)
-
26/00200/CLD Granted
73 Nursery Gardens Staines-upon-Thames TW18 1EL
Certificate of Lawfulness to establish the lawful use of the property is as a House in Multiple Occupation (Use Class C4) for up to six occupants. As shown on site location plan and block plan no EX-1003 and Pre-Existing Floor Plans (Page 01 of 02) and Existing Floor Plans (Page 02 of 02) received 27.02.2026.
-
26/00383/CPD Refused
13 Meadow Road Ashford TW15 1PL
Certificate of lawfulness for proposed change of use from a 6 Person HMO (Class C4) to a 7 Person HMO (Sui-Generis)
-
26/00437/CLD Refused
4 Sunmead Road Sunbury-on-Thames TW16 6PE
Certificate of Existing Lawfulness for the conversion of a C3 dwellinghouse to a C4 small 6-person HMO.
-
26/00575/CLD Refused
96 Groveley Road Sunbury-on-Thames TW16 7LB
Certificate of Lawfulness for an existing development and use for a ground floor rear extension, roof alterations including a rear roof dormer and a hip to gable conversion with insertion of rooflights, and use as a small HMO (use class C4)