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Planning application

Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

Granted East Suffolk DC/25/4388/DRR Discharge of Requirements (56 days)

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Requirement 21 (Main Development Site: Sizewell Marshes SSSI Method Statement) of the Sizewell C Development Consent Order

As published by the council, reference DC/25/4388/DRR

Application record

Reference
DC/25/4388/DRR
Type
Discharge of Requirements (56 days)
Status
Permitted
Decision
Application Permitted
Received
13 Nov 2025
Validated
13 Nov 2025
Decided
22 Dec 2025
Ward
Aldeburgh And Leiston
Parish
Leiston Cum Sizewell
Decision by
Delegated Decision

Site history

Applications at this address on the East Suffolk register

This site has had 13 applications since 2024: 10 approved, 0 refused.

  • Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Discharge of Requirements (42 days) - Discharge of Requirement 9 (Main development site: Site clearance) of the Sizewell C Development Consent Order

    Decided 17 Aug 2026 Conditions
  • DC/26/2576/DRR Awaiting decision

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Discharge of Requirement 19 (Main development site: Marine infrastructure) - Temporary Hard Coastal Defence Feature (part of Work No. 1A(n)) of the Sizewell C Development Consent Order

    Submitted 20 Jul 2026 Conditions
  • DC/26/1777/DRR28 Awaiting decision

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Bespoke Mitigation Plan (Noise and Vibration) Temporary Construction Area (MDS BMP 7), secured by the Noise Monitoring and Management Plan under Requirement 2 (Code of Construction Practice) of the Sizewell C Development Consent Order

    Submitted 13 May 2026 Conditions
  • DC/26/0327/CON Granted

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Consultation - Nearshore Infrastrcuture Pre-Installation Bathymetry

    Submitted 27 Jan 2026 Outline
  • DC/26/0158/CON Granted

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    MMO Consultation - Deemed Marine Licence condition 14(3) - Sizewell C CPMMP Notification: TMBIF Pre-installation Topography Monitoring Report

    Decided 10 Feb 2026 Outline
  • DC/25/4721/DRR42 Awaiting decision

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Discharge of Requirement 31 (Rail infrastructure) - Green Rail Route of the Sizewell C Development Consent Order

    Submitted 4 Dec 2025 Conditions
  • DC/25/4674/CON Granted

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Consultation - Condition Coastal Processes Monitoring and Mitigation Plan monitoring reports - DML condition 14(3)

    Decided 17 Dec 2025 Outline
  • DC/25/4283/CCC Granted

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    County Council Consultation - Discharge of Requirement 10 project wide: Public Rights Of Way implementation plan for coast path (MBIF) in respect of SZC Co. Sizewell C Nuclear Power Station

    Decided 18 Nov 2025 Outline
  • Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Bespoke Mitigation Plan (Noise and Vibration) - Sizewell Link Road Main Works (AD BMP 16), secured by the Noise Monitoring and Management Plan under Requirement 2 (Code of Construction Practice) of the Sizewell C Development Consent Order

    Decided 7 Aug 2025 Conditions
  • DC/25/2407/DRR Granted

    Proposed Sizewell C Sizewell Power Station Road Sizewell Leiston Suffolk

    Development Consent Order Requirement 21 - Main development site: Sizewell Marshes SSSI Method Statements (Partial Discharge, Methodology for SSSI Southern Abutment) of the Sizewell C Development Consent Order

    Decided 7 Jul 2025 Conditions

Timeline

Dates from the published record

  1. 13 Nov 2025

    Received by East Suffolk

  2. 22 Dec 2025

    Decision issued: Application Permitted

  3. 9 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

8 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.

Trade members open them from here.

Open the documents

What this grant of permission means

East Suffolk granted permission on 22 December 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 condition discharge and variation applications

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

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