Planning application
26/00639/PT20AA
Costain House Vanwall Business Park Vanwall Road Maidenhead SL6 4UB
Proposal
Application for prior approval for construction of one additional storey to the building to provide 9 additional dwellings.
As published by the council, reference 26/00639/PT20AA
Timeline
Dates from the published record
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10 Mar 2026
Received by Windsor and Maidenhead
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30 Apr 2026
Decision issued: Prior Approval Required and Granted
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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 this record
Reading the register
This page mirrors an entry on the statutory planning register that Windsor and Maidenhead is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.
Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.
Nearby applications
Within 500 metres
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26/01400/FULL Awaiting decision
Land At Costain House Vanwall Road Maidenhead
Erection of a 5-6 storey building comprising 62 residential dwellings (Use Class C3), together with associated public open space, vehicular parking, and access from Vanwall Road
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26/01488/PT20AA Awaiting decision
Vanwall Residences Vanwall Road Maidenhead SL6 4GH
Application for prior approval for construction of one additional storey to the building to provide 16 additional dwellings.
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24/02274/CLAMA Refused
SAP Objects House Vanwall Business Park Vanwall Road Maidenhead SL6 4UB
Prior approval for the change of use from office building (Class E) to residential (Class C3) for 38no. dwellings.
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24/02295/CLAMA Granted
Vandervell House Vanwall Business Park Vanwall Road Maidenhead SL6 4UB
Prior approval for the change of use from office building (Class E) to residential (Class C3) for 31no. dwellings.
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26/01412/TPO Awaiting decision
Pine Lodge Altwood Bailey Maidenhead SL6 4PQ
2no. Pine trees - prune to give up to 1m clearance to the overhead cables/wires, removing secondary or smaller branches only. Primary branches to be retained. (015/2019/TPO).
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26/01624/CONDIT Granted
Mattel House Vanwall Road Maidenhead
Details required by Condition 5 (Hard Landscaping) and Condition 6 (Soft Landscaping) of planning permission 22/01391/FULL (allowed on appeal) for the construction of x91 residential units together with associated landscaping, car parking and infrastructure works, following demolition of the existing building.