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Spatial development strategy regulations from 26 November 2026

ACP insights & guidance

The Strategic Planning Authorities (Spatial Development Strategy) Regulations 2026 come into force on 26 November 2026. They apply in relation to England and set procedures for preparing, altering and adopting spatial development strategies. The start date brings procedural rules into force. Each strategy has its own timetable and status.

By ACP Consultants · Sources checked 10 November 2026

What to check first

Identify the strategic planning authority for the area and the status of its strategy. Read the authority’s published timetable when available, and note when it expects to consult, submit the draft and move towards adoption. Check whether a newer timetable replaces an earlier one.

The regulations deal with timetable publication and revisions, the draft and representations, and later procedural stages. Check the made instrument and the enabling provisions in the Planning and Compulsory Purchase Act 2004 when relying on a specific requirement. The Planning and Infrastructure Act 2025 inserted the relevant Part 1A.

Organise strategic evidence around the decisions

  • Scale. Identify questions that cross local boundaries, such as cumulative transport effects, river catchments, habitats and infrastructure delivery.
  • Status. Label each source as adopted, emerging or an underlying evidence document. Record the date and the stage that makes it relevant.
  • Contribution. Explain what your evidence shows at strategic scale, what remains uncertain and what a later site assessment would need to resolve.
  • Timing. Track the formal representation window and how to submit. Keep planning application and local plan milestones separate in the project programme.

Illustrative example

A promoter is considering housing near a local authority boundary. Two transport authorities and a shared water catchment could affect the strategic evidence. The team can map these relationships now and identify the published strategy milestones. Before submission it should confirm which adopted policies apply to the site and what further assessment the application needs.

Use an evidence log with the publishing authority, date, geographic coverage and decision. Update it when the authority publishes or revises its timetable.

Common question

Does commencement mean a strategy is adopted for my site?

Check the authority’s timetable and current plan status. Preparation, consultation and adoption are separate stages.

References and scope

Discuss the project brief

Share the site location and relevant plan timetable when discussing strategic environmental evidence.

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