Environment
Apr 21, 2026
England's wildlife watchdog, Natural England, has stopped designating new Sites of Special Scientif…
England's wildlife watchdog has effectively ceased its vital work of protecting the nation's most precious habitats and species by failing to designate new Sites of Special Scientific Interest (SSSIs), according to a damning new report. The inaction comes as natural habitats face increasing pressure from development, threatening biodiversity and undermining the government's environmental commitments.
Key Developments
No new SSSIs have been designated by Natural England since 2023
14 potential SSSIs on Natural England's "designations pipeline" have received planning applications or decisions for major development within 1km
12 of these development applications have been approved
A Thurrock site earmarked for protection will be destroyed by the Tilbury 3 port development
Natural England has admitted to pausing formal assessment of a number of sites
Data & Market Impact
SSSIs currently protect just 7.1% of England's land - the lowest level of protected land in any EU country. This represents a significant shortfall compared to the government's legal commitment to protect 30% of land and sea for nature by 2030. The statistics reveal a concerning trend: only 33 new SSSIs have been established in the past 14 years, with no sites extended since 2005 when the total protected area has grown by just 2.8%.
Wild Justice's report found that 63% of potential SSSIs are at high risk from development. The analysis examined planning applications and decisions that signaled intent to develop on potential SSSI sites or within a 1km radius - a conservative estimate of harm, as many types of urban development inflict ecological damage over a much wider area.
Why This Matters
The failure to designate new SSSIs has profound implications for England's biodiversity and environmental health. SSSIs are nationally or internationally important places for rare wildlife and habitats, and without this designation, endangered species can be at risk of being lost to development. This directly impacts the UK's ability to meet international biodiversity targets and maintain ecosystem services that benefit both wildlife and humans.
Regionally, the Thames estuary area exemplifies the crisis. Of 198 sites of high or medium value for insects identified in 2008, 100 had been lost to development or were under imminent threat just six years later. The destruction of these habitats represents an irreversible loss of natural capital that cannot be easily restored.
For businesses, this creates uncertainty in planning processes and potential reputational risks for developers operating near environmentally sensitive areas. For local communities, it means the loss of green spaces and natural areas that provide recreational opportunities and contribute to mental wellbeing.
Expert Insight
Bob Elliot, chief executive of Wild Justice, characterizes the inaction as "not a technical failure, it's a dereliction of duty." His analysis suggests that the pause in designations represents a systemic failure rather than a resource constraint. "The idea that we can protect nature at a landscape scale while failing to designate the very best sites is absurd," Elliot argues, highlighting the fundamental contradiction in the government's approach.
Natural England's explanation - that it is "reviewing its limited resources" and considering "new principles" to prioritize SSSI notifications - appears to environmental experts as a convenient deflection. The organization's 2,000-word strategy for recovering nature published last year notably failed to mention SSSIs once, suggesting a potential shift in priorities away from statutory protections toward more flexible approaches that may offer less robust safeguards.
The prolonged delay in designating sites like Filey Brigg to Scarborough South Bay and Flamborough Head, which have languished on the pipeline for a decade, indicates a systemic issue that goes beyond resource constraints and suggests a political or ideological shift in environmental protection priorities.
What Happens Next
The immediate future appears bleak for England's unprotected wildlife sites. With Natural England admitting it has paused formal assessments and is not adding new potential sites to its designations program, the pipeline is effectively frozen. The Tilbury 3 port development will proceed, destroying part of the "Ashfield A1" proposed SSSI and part of the West Tilbury Marshes local wildlife site, described as "the most important area for invertebrates across the North Thames area."
However, the growing body of evidence and public scrutiny may force a reversal of this policy. Legal challenges from environmental groups like Wild Justice are likely, as the failure to designate SSSIs could be challenged in court as a breach of statutory duties. Additionally, the government's commitment to the 30x30 biodiversity target by 2030 will become increasingly difficult to justify without robust site protection mechanisms.
In the longer term, this crisis may prompt a reevaluation of England's entire approach to nature protection. The current model, which relies heavily on statutory designations, may be supplemented or replaced by alternative conservation strategies, though these would likely be less effective at protecting the most biodiverse sites from development pressure.
Ultimately, the resolution will depend on political will and whether the government chooses to prioritize short-term economic development goals or long-term environmental sustainability. The fate of England's remaining wild places hangs in the balance as this critical policy impasse continues.