Planning application
26/00464/CPD
41 Lyndhurst Avenue Sunbury-on-Thames TW16 6QZ
Proposal
Certificate of Lawfulness for proposed loft conversion comprising hip-to-gable roof alteration, rear facing dormer and 2 no roof lights on front roof plane. Erection of outbuilding in rear garden. (As shown on plan no's 01C, 02C, 03C, 04C, 05C, 06C, 07C, 08C, 09C, 10C, 11C, 12C, 13C rec'd 10.07.2026)
As published by the council, reference 26/00464/CPD
Timeline
Dates from the published record
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6 May 2026
Received by Spelthorne
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10 Jul 2026
Decision issued: Grant Cert Lawful Prop Use/Dev
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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 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
-
23/00120/TPO Granted
Berwick House Green Street Sunbury-on-Thames TW16 6RA
TPO055/77/T77 - 1 x Oak to re-pollard back to 1.5m to original pollard point.
-
23/00070/DC3 Awaiting decision
Land Adjacent To Hazelwood Hazelwood Drive Sunbury-on-Thames TW16 6QU
Discharge of condition 9 (off-site highway improvements) of application 23/00070/FUL
-
26/00761/TPO Awaiting decision
18 The Pines Sunbury-on-Thames TW16 6HT
TPO 055/77 Oak (Oak T1 on submitted plan) Remove deadwood.
-
24/01092/HOU Granted
21 Anvil Road Sunbury-on-Thames TW16 6NQ
Erection of a single storey front extension
-
26/00524/HOU Refused
3 Vereker Drive Sunbury-on-Thames TW16 6HQ
Erection of a part single, part two-storey rear extension. Garage conversion into habitable space with raising of roof height and single storey extension behind. Single storey front porch extension. Associated changes to fenestration.
-
26/00437/CLD Awaiting decision
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.
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.)
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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.