Planning application
26/00617/CPD
60 Ashbrook Road Old Windsor Windsor SL4 2NB
Proposal
Certificate of lawfulness to determine whether the proposed single storey rear extension is lawful.
As published by the council, reference 26/00617/CPD
Timeline
Dates from the published record
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9 Mar 2026
Received by Windsor and Maidenhead
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18 Mar 2026
Decision issued: Permitted Development
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25 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
-
26/01640/FULL Awaiting decision
79 Kingsbury Drive Old Windsor Windsor SL4 2NH
New hardstanding and drop kerb.
-
26/01085/TPO Awaiting decision
39 Orchard Road Old Windsor Windsor SL4 2RZ
T1 - Sycamore - fell, G2 - Group of Sycamores - crown reduction by 3m overall to leave a final height of 16m and spread of 9m, G3 - Group of Sycamores - fell, T4 - Holly - reduce height by 3m to leave a final height of 6m and spread of 6m, T5 and T6 - 2 x Sycamores - reduce by 5m to previous pruning points to leave final height of 16m and spread of 9m.(022/2003/TPO)
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22/02390/FULL Refused
16 Orchard Road Old Windsor Windsor SL4 2RZ
1no. rear dormer to facilitate a loft conversion.
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24/02347/TPO Granted
Street Record Newton Court Old Windsor Windsor SL4 2SN
(T17) Wellingtonia - remove dead stubs in lower crown and (T23) Wellingtonia - reduce back lowest branch on north side by 2m to give 2m clearance from building. (026/2011/TPO).
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26/00645/TPO Granted
6 Harwood Gardens Old Windsor Windsor SL4 2LJ
(T1) Beech - Prune to give 0.5m clearance to the overhead utility wires; prune to give 1m clearance to the BT pole; prune to give up to 5.3m clearance over the road (this can be carried out under an exception in the Regulations). (005/1965/TPO).
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22/03149/TPO Granted
Street Record Newton Court Old Windsor Windsor SL4 2SN
T7 - Atlantic Cedar - Crown reduce by 2m leaving 28m height and approximately 16m spread. (026/2011/TPO)
Other lawful development applications
In Windsor and Maidenhead
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26/01836/CPD Awaiting decision
Rivendale 22A Gloucester Drive Wraysbury Staines TW18 4TY
Certificate of lawfulness to determine whether the proposed conversion of the existing garage into habitable space is lawful.
-
26/01528/CPD Granted
Foxley Manor Forest Green Road Holyport Maidenhead SL6 2NW
Certificate of lawfulness to determine whether the proposed erection of an outbuilding is lawful.
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26/01532/CPD Granted
72 Highway Avenue Maidenhead SL6 5AQ
Certificate of Lawfulness to determine whether the proposed rear dormer roof extension and associated internal alterations to enlarge the existing loft accommodation is lawful.
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26/01823/CPD Awaiting decision
Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB
Certificate of lawfulness to determine whether the proposed garage conversion, alterations to fenestration, 1 no. front dormer and 1 no. rear dormer to facilitate a loft conversion is lawful.
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26/01772/CPD Granted
18 Broken Furlong Eton Windsor SL4 6PD
Certificate of lawfulness to determine whether the proposed erection of a single storey rear detached annex to be used incidental with the host dwelling is lawful.