UK Planning Act 2008: DCO Application Acceptance Guide
Updated 6 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 1 source · Method ↗
Key Takeaways
- Codified under Planning Act 2008 Section 37, applications for Development Consent Orders must be formally submitted to the Secretary of State.
- Mandates that DCO applications be made in the prescribed form and accompanied by required technical documents and environmental data.
- Explicitly requires documentation demonstrating how mandatory biodiversity gain objectives in a biodiversity gain statement are achieved.
- Enforces a strict 28-day statutory acceptance window under Section 55 for the Planning Inspectorate to evaluate submission adequacy.
- Requires verified compliance with Section 46 pre-application consultation notification before an application can be legally accepted.
Statutory Framework of Sections 37 and 55
Under the Planning Act 2008 (c. 29), Part 5 and Part 6 establish the formal gateway for initiating national infrastructure examinations.
Section 37 governs applicant submission standards, while Section 55 establishes the rigid 28-day statutory procedural review conducted by the Planning Inspectorate (PINS) on behalf of the Secretary of State.
DCO Application & Section 55 Acceptance Matrix
The Planning Inspectorate evaluates major solar submissions against statutory validation checkpoints:
Statutory Review Stage | Legislative Text | Validation Requirement for Solar DCO Filings |
|---|---|---|
Application Gateway | Section 37(1) Order may be made only if an application is made for it | Mandatory prerequisite for any Nationally Significant Infrastructure Project |
Submission Recipient | Section 37(2) Must be made to the Secretary of State | Transmitted electronically via the Planning Inspectorate Major Casework portal |
Prescribed Form | Section 37(3) Specify development and be made in prescribed form | Standardized PINS application form, GIS shapefiles, and draft DCO articles |
Biodiversity Gain Data | Section 37(3A) Demonstrating how biodiversity gain objective is met | Mandatory 10% BNG metric calculations, habitat baseline surveys, and management plans |
Document Standards | Section 37(5) Secretary of State may set standards for preparation | Binding PINS Advice Notes governing formatting, indexing, and electronic file sizes |
Statutory Review Clock | Section 55(2) Period of 28 days beginning with the day after receipt | Inflexible statutory acceptance deadline with zero extensions permitted |
Section 46 Notice Duty | Section 55(3)(ca) Concludes applicant has complied with section 46 | Verification that formal notification letters were served prior to public consultation |
Standard of Adequacy | Section 55(3)(f) Application is of a standard considered satisfactory | Rigorous assessment against the published PINS Section 55 Acceptance Checklist |
Developer Checklist for Seamless Section 55 Acceptance
To prevent rejection during the 28-day PINS acceptance window:
- Audit Pre-Application Notices: Confirm proof of postage and delivery dates for Section 46 notifications sent to the Planning Inspectorate prior to launching Section 42 consultation.
- Verify Biodiversity Statements: Ensure the Environmental Statement includes complete statutory biodiversity gain metrics and a 30-year habitat management and monitoring plan under Section 37(3A).
- Cross-Reference Document Indexes: Pre-check all cross-references across the draft Development Consent Order, Explanatory Memorandum, and Book of Reference against Section 37(5) standards.
Frequently asked questions
To whom must a Development Consent Order application be submitted under Section 37(2)?
Under Section 37(2), an application for an order granting development consent must be made to the Secretary of State (August 2026).
What must accompany a DCO application under Section 37(3A)?
Under Section 37(3A), the application may include documents and information demonstrating how any biodiversity gain objective in a biodiversity gain statement is to be met (August 2026).
What is the statutory deadline for PINS to decide application acceptance under Section 55(2)?
Under Section 55(2), the Secretary of State must decide whether or not to accept the application by the end of the period of 28 days beginning with the day after receipt (August 2026).
What notification standard must be satisfied under Section 55(3)(ca)?
Under Section 55(3)(ca), the Secretary of State must conclude that the applicant has complied with Section 46 notification duties prior to acceptance (August 2026).
References
- legislation.gov.uk: Planning Act 2008 Section 55 — accessed 31 August 2026
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