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Sizewell C And Associated Development Sites Sizewell Leiston Suffolk

DC/26/0622/CONOther ConsultationPermitted
Outline / PiP

Proposal

Consultation - Sizewell C pUXO Investigation Spring 2026.

Received
16 February 2026
Decided
13 March 2026 · No Objections
Decision level
Delegated (officer decision)
Public comments
2
Ward
Aldeburgh And Leiston
The council did not publish a location for this application.
  1. Received16 Feb
  2. Validated16 Feb
  3. Consult.17 Mar
  4. Target9 Mar
  5. Decided13 Mar

Decided in 25 days (council typically 56)

8 weeks typical decision time in East Suffolk86% of outline applications approved

This is an outline application at Sizewell C And Associated Development Sites Sizewell Leiston Suffolk. East Suffolk has handled 931 applications of this type and approves 85% of them, typically deciding them in 43 days. This one was decided in 25 days, 3 weeks quicker than East Suffolk's median. There have been 11 other applications at this address. In the past year there have been 106 applications across Aldeburgh And Leiston.

Application Details

Reference
DC/26/0622/CON
Address
Sizewell C And Associated Development Sites Sizewell Leiston Suffolk
Local Authority
East Suffolk
Application Type
Other Consultation
Scale / Size
Small
Decision Status
Permitted
Current Status
Responded
Ward
Aldeburgh And Leiston
Parish
Leiston Cum Sizewell

Applicant & Agent

Applicant Address
Mallard House Peasholme Green York YO1 7PX

Planning Application Dates

Date Received
16 February 2026
Target Decision Date
9 March 2026
Date Decided
13 March 2026
Date Validated
16 February 2026
Date Submitted
16 February 2026
Last Date for Comments
17 March 2026
Permission Expires
13 March 2031

Planning Decision

Decision
No Objections
Decided By
Delegated Decision
Statutory Period
21 days

Publicity

Appeal

Additional Information

Comments
2
Documents
5

Source: East Suffolk

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Planning history at this site

11 other applications at this property, newest first.

  1. 2026
    1 Sep

    Discharge of Requirement 9 - Main Development Site: Site Clearance of the Sizewell C Development Consent Order

    PendingDischarge of conditionsDC/26/3028/DRR42
  2. 2026
    10 Aug

    Bespoke Mitigation Plan (Noise and Vibration) Main Development Site Roads (MDS BMP 5), secured by the Noise…

    PendingApplicationDC/26/2839/DRR28
  3. 2026
    3 Jul

    Development Consent Order Requirement 27 - Main development site: Marsh harrier of the Sizewell C Development…

    PendingApplicationDC/26/2417/DRR
  4. 2026
    28 May

    Bespoke Mitigation Plan (Noise and Vibration) - Ancillary Construction Area (MDS BMP 6 ACA Revision 04)…

    PendingDischarge of conditionsDC/26/1974/DRR28
  5. 2026
    27 May

    County Council Consultation - SCC/0088/26/DoR

    PendingDischarge of conditionsDC/26/1956/CCC
  6. 2026
    27 May

    Discharge of Requirement 3 (6) (A) - Project wide: Archaeology and peat, post-excavation assessments in…

    PendingDischarge of conditionsDC/26/1949/CON

Planning constraints

Designations at the address point. Ones next to the site may also apply.

  • Special Area of Conservation: Southern North Sea
  • Special Protection Area: Outer Thames Estuary
  • Heritage coast: Suffolk
  • Flood zone 1: Low probability (rivers and sea)

Not published by this council, so not checked: Article 4 directions and tree preservation orders. Ask the council if these matter.

Also checked, none recorded (19)

flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Ramsar sites, ancient woodland, national nature reserves, local nature reserves and brownfield registers.

A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.

Data © Crown copyright and others · sources and licences

Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.

© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.

© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.

© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.

Contains Ordnance Survey data © Crown copyright and database right 2026.

Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

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