IP16 4UR, Sizewell C Limited, EPR/DB3147LF/V002: environmental permit application
Published 19 January 2026
Applies to England
© Crown copyright 2026
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Details of the application
The Environment Agency has received a permit variation application under the Environmental Permitting (England and Wales) Regulations 2016 from Sizewell C Limited.
Application number
EPR/DB3147LF/V002
Regulated facility type
Standalone flood risk activity permit (FRAP)
Regulated facility location
Sizewell C Main Development Site (Foreshore Zone)
Leiston
Suffolk
IP16 4UR
National grid reference point
TM 47604 64337 to TM 47604 64238
Receiving environment
Works within 16 metres of a sea defence (EA Asset ID No.178292).
Description of activity
This variation is required to provide a construction constraint resolution between the Temporary Sea Defence (TSD) and the Marine Bulk Import Facility (MBIF). The TSD has been installed from a piling platform constructed at a level of 4.2 mAOD. Once the MBIF cantitravel system is deployed from its launch platform, it will impose width and height constraints on the movement of plant along the piling platform on the seaward side of the TSD. To maintain operational access the piling will be lowered to a flat level of 2.0mAOD beneath the MBIF with ramps sloping down from the piling platform level of 4.2mAOD to either side. The base of the underpass and ramps to either side will each be 33m (99m in total). The base of the underpass will be 9.075m wide. requires the construction of an 100m long underpass structure, comprising a localised lowering and widening of the TSD piling platform beneath the MBIF. These works take place within 16 metres of a sea defence (Asset ID No. 178292) hence the need for a permit variation.
How to view and comment on the application
Via e-mail: sizewellcnnb@environment-agency.gov.uk
Via telephone: 03708 506 506
If you have any comments on the application send these by 16 February 2026.
For advice about how to make a representation or if you are unable to make a representation via e-mail please call 03708 506 506.
The Environment Agency will normally put any comments it receives on the public register. This includes your name but not your personal contact details. Please tell us if you do not want your response to be public.
The privacy notice for permit applicants/operators can be viewed at Privacy Notice