IP16 4UR, Sizewell C Limited, EPR/DB3147LF/V001: environmental permit application
Published 23 September 2025
Applies to England
© Crown copyright 2025
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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/V001
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 47601 64317 to TM 47581 63701
Receiving environment
Works within 16 metres of a sea defence (EA Asset ID178292).
Description of activity
The TSD construction works remain as stated within the EPR/DB3147LF application, except for an increase in pile height south of the Sizewell B (SZB) ‘claim line’. The claim line extends from chainages 0 to 340m. In this section the top elevation of the TSD will increase from 7.3m Above Ordnance Datum (AOD) to 10.0m AOD. To facilitate construction of the TSD will require the addition of a temporary piling mat on the east (seaward side) of the TSD and, to facilitate access to the east of the sea defence (EA Asset ID178292), an access ramp will be constructed against the sea defence on its the western and eastern slopes.
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 20 October 2025.
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