Planning application
11 Ash Grove Staines-upon-Thames TW18 1JE
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Certificate of Lawfulness for proposed single storey outbuilding following removal of existing timber shed
As published by the council, reference 26/00318/CPD
Application record
- Reference
- 26/00318/CPD
- Type
- Cert. of Lawful Proposed Use and Dev
- Status
- Decided
- Decision
- Grant Cert Lawful Prop Use/Dev
- Received
- 26 Mar 2026
- Validated
- 16 Apr 2026
- Decided
- 9 Jun 2026
- Ward
- Staines South
- Parish
- Staines ED
- Decision by
- Delegated Decision
- Postcode
- TW18 1JE
Timeline
Dates from the published record
-
26 Mar 2026
Received by Spelthorne
-
16 Apr 2026
Validated
Checked as complete and ready for consideration.
-
9 Jun 2026
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, a surveying firm registered in Middlesex
3 applications on PlanIndex · across 3 councils
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
6 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
-
11 Ash Grove Staines-upon-Thames TW18 1JE
Prior Approval Notification for a single storey rear extension measuring 4 metres in depth beyond the rear wall of the original dwellinghouse measuring a maximum height of 3 metres and a height to the eaves of 2.85 metres. (As shown on plans: Location plan, RSJ/19/E100, RSJ/19/P100 received on 11.11.2019)
Granted Prior approval Extension 7 docsSmall domestic -
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.
Granted Lawful development Loft or dormer 20 docs -
31 Hazel Grove Staines-upon-Thames TW18 1JJ
Proposed single storey rear/side extension
Granted Householder Extension 9 docsSmall domestic -
20 Ash Grove Staines-upon-Thames TW18 1JD
87% historically approved · decision due ~2 Jun
Certificate of lawfulness for proposed use of dwellinghouse (Use Class C3a) as a residential home for up to 3 no. adults to receive care on site.
Awaiting decision Lawful development 12 docsDomestic -
36 Hurstdene Avenue Staines-upon-Thames TW18 1JQ
86% historically approved · decision due ~31 Jul
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.
Decided Extension Loft or dormer 10 docs -
52 Hazel Grove Staines-upon-Thames TW18 1JL
88% historically approved · decision due ~2 Oct
Erection of a single storey side and rear extension. Front porch extension. Following removal of existing garage.
Awaiting decision Householder Extension 9 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)