Planning application
26/00570/PDH
21 Arnold Road Laleham Staines-upon-Thames TW18 1LY
Proposal
Prior approval notification for a single storey rear extension measuring 6 metres in depth beyond the rear wall of the original dwelling house measuring a maximum height of 3 metres and a height to the eaves of 3 metres. (As shown on location plan and plans no'd MATHEW/PLAN/001, /002, /003 rec'd 01.06.2026).
As published by the council, reference 26/00570/PDH
Timeline
Dates from the published record
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1 Jun 2026
Received by Spelthorne
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13 Jul 2026
Decision issued: Prior Approval Not Required
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30 Jul 2026
Added to PlanIndex
What 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 prior approval applications
How this application type works
Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.
Nearby applications
Within 500 metres
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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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26/00533/PDH Granted
141 Elizabeth Avenue Laleham Staines-upon-Thames TW18 1JN
Prior Approval Notification for a single storey rear extension extending 5.0 metres beyond the rear wall of the original house, with a maximum height of 2.94 metres and a height of 2.79 metres to the eaves (As shown on plans: 2623_1; 2; 3; 4; 5; 6 received 21.05.2026)
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26/00621/CLD Awaiting decision
58 Templedene Avenue Staines-upon-Thames TW18 1LW
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.
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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.
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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.
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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.
Other prior approval applications
In Spelthorne
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26/00776/PDH Awaiting decision
136 Station Crescent Ashford TW15 3HL
Prior approval notification for a single storey rear extension measuring 4.5 metres in depth beyond the rear wall of the original dwelling house measuring a maximum height of 3 metres and a height to the eaves of 3 metres.
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26/00611/PDH Granted
16 Desford Way Ashford TW15 3AT
Prior Approval Notification for a single storey rear extension extending 8.0 metres beyond the rear wall of the original house, with a maximum height of 3.9 metres and a height of 2.6 metres to the eaves (As shown on plans: 228/KIM/P01; P02; P03; P04 received 10.06.2026 and 228/KIM/P05 rev A received 16.07.2026)
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26/00605/PDH Granted
13 Lucie Avenue Ashford TW15 2BH
Prior Approval Notification for a single storey rear extension extending 4.5 metres beyond the rear wall of the original house, with a maximum height of 3.0 metres and a height of 2.9 metres to the eaves (As shown on plans: 2026/13/LAA/201/A; 2026/13/LAA/202; 2026/13/LAA/203/A and Location Plan received 08.06.2026)
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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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26/00592/PDH Granted
66 Knightsbridge Crescent Staines-upon-Thames TW18 2QR
Prior Approval Notification for a single storey rear extension extending 6 metres beyond the rear wall of the original dwellinghouse with a maximum height of 3.3 metres and eaves height of 3 metres. Following removal of existing conservatory. (As shown on plans KC/66/01, KC/66/04, KC/66/05 received 05.06.2026)