Planning application
6/2026/0321/COND
European Knowledge Centre Eisai Limited Mosquito Way Hatfield AL10 9SN
Proposal
Submission of details pursuant to Conditions 1 (Construction Management Plan), 2 (Surface Water Drainage), 7 (Planting Methods and Soft Landscaping) and Condition 8 (Cycle Shelter and Cycle Provision) on planning permission 6/2022/1853/MAJ
As published by the council, reference 6/2026/0321/COND
Timeline
Dates from the published record
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20 Feb 2026
Received by Welwyn Hatfield
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23 Feb 2026
Validated
Checked as complete and ready for consideration.
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24 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Welwyn Hatfield for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About conditions applications
How this application type works
This type of application deals with conditions attached to an existing permission, either by supplying the details a condition requires, called discharging it, or by asking to vary or remove one. It does not reopen the principle of the permission itself. Building often cannot lawfully start, or continue past a set stage, until the named conditions are discharged.
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In Welwyn Hatfield
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6/2026/1325/COND Awaiting decision
44 Howardsgate Welwyn Garden City AL8 6BW
Submission of details pursuant to condition number 1 (materials) on planning permission 6/2026/0317/FULL
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6/2026/0970/COND Granted
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Submission of details pursuant of condition 2 (Odour and noise) on planning permission 6/2023/2449/FULL
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6/2026/0945/COND Granted
24 Hardings Welwyn Garden City AL7 2EJ
Submission of details pursuant to Condition 1 (materials) on planning permission 6/2023/1259/FULL
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6/2026/1040/COND Granted
1 Town Centre Hatfield AL10 0JZ
Submission of details pursuant to Condition 23 (first use of the commercial element) on planning permission 6/2021/1987/VAR
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6/2025/2046/COND Refused
51 Welham Manor Welham Green Hatfield AL9 7EL
Submission of details pursuant to Condition 9 (Boreholes) & 10 (Intrusive Groundworks) on planning permission 6/2024/1866/FULL