Planning application
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
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
Application record
- Reference
- 25/1395/HS2
- Type
- HS2 schedule 17 application
- Status
- Decided
- Decision
- Granted As published: approved
- Received
- 19 Aug 2025
- Validated
- 19 Aug 2025
- Decided
- 9 Oct 2025
- Ward
- Chorleywood South And Maple Cross
- Parish
- Non-Parished
- Decision by
- Delegated Decision
Site history
Applications at this address on the Three Rivers register
This site has had 7 applications since 2021: 5 approved, 0 refused.
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24/1926/HS2 Decided
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of details pursuant to Paragraph 5 of Schedule 16 to the High-Speed Rail (London -West Midlands) Act 2017 requesting agreement of Three Rivers District Council of the scheme for restoration required before giving up possession of the land (Land Parcel west of North Orbital Road, southeast of HS2 Construction Site and north of Old Shire Lane bridleway)
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24/1190/HS2 Decided
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of details pursuant to Paragraph 5 of Schedule 16 to the High-Speed Rail (London -West Midlands) Act 2017 requesting agreement of Three Rivers District Council of the scheme for restoration required before giving up possesion of the land.
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23/0881/HS2 Granted
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications under Paragraph 3 (other construction works) of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises amendments to previously approved earthworks, fence and gates locations and realignment of previously approved drainage attenuation ponds (amendments to details approved by applications 19/0945/HS2 and 21/0320/HS2), and approval of walls associated with viewing areas.
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23/0872/HS2 Granted
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications for site restoration under Paragraph 12 of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises restoration scheme for land at Colne Valley Western Slopes and Chalfont Lane Bund including planting and seeding details, habitat features, realignment of ditches and fencing.
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23/0159/HS2 Granted
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications for building works and other construction works under Paragraphs 2 (Building Works) and 3 (other construction works) of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises the permanent retention of three existing buildings (Distribution Network Operator substations - DNO), earthworks (including new earthworks and alterations to those consented under 21/0320/HS2 to realign drainage ditches and relocate attenuation basin), fences and walls (including new, and alterations to those consented under 21/0320/HS2) , and artificial lighting equipment.
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21/0320/HS2 Granted
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications for building works (tunnel portal structures, and portal buildings under Paragraph 2) and other construction works (earthworks, sight noise or dust screens, fences or walls, and lighting equipment under Paragraph 3) of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises the creation of the Colne Valley Western Slopes earthworks, the realignment of Tilehouse Lane, construction of South Portal building and portal structures alongside associated fencing, noise barriers and lighting
Timeline
Dates from the published record
-
19 Aug 2025
Received by Three Rivers
-
9 Oct 2025
Decision issued: approved
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24 Jul 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
13 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat this grant of permission means
Three Rivers granted permission on 9 October 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About this record
The published feed does not state which type of application this is; the register entry on Three Rivers's portal will say. Our guide explains the common types.
Nearby applications
Within 0.3 miles
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HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications under Paragraph 3 (other construction works) of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises amendments to previously approved earthworks, fence and gates locations and realignment of previously approved drainage attenuation ponds (amendments to details approved by applications 19/0945/HS2 and 21/0320/HS2), and approval of walls associated with viewing areas.
Granted 69 docsSmall domestic -
HS2 Construction Site West Of A412 Denham Way South Portal Chalfont Lane West Hyde Hertfordshire
Submission of details pursuant to Condition/Request for Additional Details 2 attached to HS2 S17 ref 23/0159/HS2. Submitted details relate to colour finishes for gutters and downpipes.
Granted 4 docs -
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of details pursuant to Paragraph 5 of Schedule 16 to the High-Speed Rail (London -West Midlands) Act 2017 requesting agreement of Three Rivers District Council of the scheme for restoration required before giving up possession of the land (Land Parcel west of North Orbital Road, southeast of HS2 Construction Site and north of Old Shire Lane bridleway)
Decided 1 doc -
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications for site restoration under Paragraph 12 of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises restoration scheme for land at Colne Valley Western Slopes and Chalfont Lane Bund including planting and seeding details, habitat features, realignment of ditches and fencing.
Granted 56 docs -
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications for building works (tunnel portal structures, and portal buildings under Paragraph 2) and other construction works (earthworks, sight noise or dust screens, fences or walls, and lighting equipment under Paragraph 3) of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises the creation of the Colne Valley Western Slopes earthworks, the realignment of Tilehouse Lane, construction of South Portal building and portal structures alongside associated fencing, noise barriers and lighting
Granted 166 docs -
HS2 Construction Site West Of A412 Denham Way Chalfont Lane West Hyde Hertfordshire
Submission of plans and specifications for building works and other construction works under Paragraphs 2 (Building Works) and 3 (other construction works) of Schedule 17 to the High Speed Rail (London-West Midlands) Act 2017. Development comprises the permanent retention of three existing buildings (Distribution Network Operator substations - DNO), earthworks (including new earthworks and alterations to those consented under 21/0320/HS2 to realign drainage ditches and relocate attenuation basin), fences and walls (including new, and alterations to those consented under 21/0320/HS2) , and artificial lighting equipment.
Granted 16 docs