
Infrastructure Planning Blog
49: Sundowner and BNG on the up
This week’s blog entry looks at a potential local authority challenge to a DCO decision, an application proposing Secretary of State requirement sign-off, and the first legislative signs of the application of BNG to NSIPs.
Reform council starts solar DCO judicial review process
Lincolnshire County Council is seeking to challenge the recent decision to grant the Springwell solar development consent order (DCO) (near Lincoln), on the vague ground – so far – that 'the proper process was not followed'. The leader of Conservative-led North Kesteven Council also suggested the decision was unsound.
The decision was analysed in blog 45, here. We will cover this as things develop, of course.
First energy DCO to anticipate SoS sign-off
The Sea Link electric line DCO application has just finished its examination; it had the second-highest number of relevant representations, and the highest to get this far because the one with the highest overall, Brig y Cwm, was withdrawn during the examination. Judging by the representation numbering in the Examination Library for the last deadline going up to 369, it was an intense examination.
The applicant National Grid published a document of changes to the DCO should the government allow Secretary of State sign-off of requirements for energy applications rather than local planning authority sign-off. The Secretary of State for Transport already signs off National Highways DCO requirements so it is not unprecedented, and is one of the recommendations of the Nuclear Taskforce (aka Fingleton) Review.
BNG taking shape
As of 7 May, the government has commenced the provisions of the Environment Act 2021 relating to biodiversity net gain for DCO applications. However, the way it is drafted means that it won't apply to applications until a 'Biodiversity Gain Statement', text equivalent in status to a National Policy Statement, is designated. This is presumably intended to take effect from the announced start date of 2 November.
Other regulations were published that take effect from 29 May and extend the biodiversity gain site register to apply to DCOs.
If you'd like to know more about what this all means and what applications will look like from 2 November, please sign up to my webinar on 10 June, details here.
This publication is intended for general guidance and represents our understanding of the relevant law and practice as at May 2026. Specific advice should be sought for specific cases. For more information see our terms & conditions.
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Insights & events

Infrastructure Planning Blog 49: Sundowner and BNG on the up

Building Liability Orders: First fully contested judgment on BLOs delivers clarity

Infrastructure Planning Blog 48: Legal challenge ruled totally without merit, pollution control regimes and football stadiums

The UK Carbon Border Adjustment Mechanism and potential impacts on projects

Infrastructure Planning Blog 47: Overhead line changes, and enabling data centres

Infrastructure Planning Blog 46: BNG for NSIPs defined but delayed and other news

Infrastructure Planning Blog 45: Largest solar DCO granted and other news

Infrastructure Planning Blog 44: Plans, purdah and publication

Infrastructure Planning Blog 43: Slow, slow, quick, no go for infrastructure planning

Infrastructure Planning Blog 42: Nuclear reforms, discharge of requirements and NPPF changes

Infrastructure Planning Blog 41: New Welsh guidance, the use of AI in planning and other updates

Northern Ireland Planning and Environment update: Minerals

Infrastructure Planning Blog 40: A conference and another revocation

Infrastructure consent order regime in Wales: Updates

Infrastructure Planning Blog 39: Fenwick Solar Farm, Sizewell C and EIA case law

Infrastructure Planning Blog 38: A new wind DCO, and European streamlining

Impact of flexible working on towns and cities - the market and legal considerations
1 September – all change (again) for the Community Infrastructure Levy

Nick Evans joins TLT as partner placing the firm at the helm of infrastructure, planning, public law and future energy in the UK

TLT expands future energy and infrastructure expertise with new Partner appointment

TLT strengthens public sector infrastructure and future energy offering with two new partners

TLT strengthens construction expertise with third partner hire in six months

TLT adds 29 lawyers creating one of the largest practices of its kind in the UK

TLT grows projects infrastructure and construction team with appointment of new partner

TLT hires transport and renewable energy specialist supporting the expansion of its planning team
TLT Partner Appointed Chair of North West Fraud Forum | TLT

TLT Shortlisted for Firm of the Year at Scottish Legal Awards | TLT

TLT Wins Law Firm of the Year at Manchester Legal Awards | TLT

TLT Recognised for Two Awards at The Lawyer Awards 2022 | TLT

TLT Shortlisted for Two Manchester Legal Awards 2022 | TLT

TLT advises Network Homes on £140m sale to Grainger

TLT advises One Housing Group on major affordable housing project

TLT advises Town and Country Housing on modular homes acquisition

Biodiversity Net Gain: What’s changing and what it means for you

Preparing for the Procurement Act 2023 - construction industry focus

BNG - TLT and Belmont Estate talk nature positivity

What does the next generation of our cities look like?





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