Planning application
25/1395/HS2
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Proposal
Submission of plans and specifications for lighting equipment under Paragraph 3 of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises installation of lighting equipment at the Chilterns Tunnel South Portal.
As published by the council, reference 25/1395/HS2
Timeline
Dates from the published record
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19 Aug 2025
Received by Three Rivers
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9 Oct 2025
Decision issued: approved
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24 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 Three Rivers 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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PL/26/00300/HS2 Granted
Land East Of M25, and West Of HS2 Chiltern Tunnel South Portal
Submission under Schedule 16 of the High-Speed Rail (London - West Midlands) Act 2017 for a site restoration scheme at land east of M25, and west of HS2 Chiltern Tunnel South Portal (MS.17.16)