What Species Are Protected Under Environmental Law in the UK?

If you are planning development or managing land, you may be wondering: what species are protected under environmental law in the UK?

The UK has a wide range of environmental legislation designed to protect wildlife, conserve habitats, and safeguard biodiversity. These laws make it illegal to harm certain animals or damage the places they rely on for breeding, shelter, or protection.

For developers, landowners, and planners, understanding which species are protected under UK environmental law is an important part of the planning process. Protected species can influence how a site is assessed, whether ecological surveys are required, and what mitigation measures may be needed before work begins.

This guide explains the key laws involved, the main groups of protected species, and what it means for planning applications.

Environmental laws protect species that are rare, vulnerable, or important to the wider natural environment. Protection helps maintain biodiversity and prevent further population declines.

In the UK, legal protection is mainly provided through legislation such as:

• The Wildlife and Countryside Act 1981
• The Conservation of Habitats and Species Regulations 2017
• The Protection of Badgers Act 1992

These laws make it an offence to capture, injure or kill certain animals, as well as deliberately harm or disturb them. In many cases, it is also illegal to damage or destroy breeding sites or resting places.

Local authorities must consider these protections when reviewing planning applications. If protected species may be present, ecological surveys and mitigation measures are often required before planning permission can be granted.

When asking what species are protected under environmental law in the UK, several groups of animals are commonly considered during ecological assessments.

Bats

All bat species in the UK are protected under the Habitats and Species Regulations 2017 and the Wildlife and Countryside Act 1981.

It is illegal to harm or disturb bats, or damage or destroy their roosts. Because bats often roost in buildings and mature trees, surveys are frequently required for development proposals.

Great Crested Newts

Great crested newts are one of the most well-known protected amphibians in the UK. They are a European Protected Species and receive strict legal protection.

Their breeding ponds and surrounding terrestrial habitats are protected, meaning development near ponds may require detailed surveys and mitigation measures.

Badgers

Badgers are protected under the Protection of Badgers Act 1992. Their underground sets are legally protected structures.

Development projects must avoid damaging or blocking access to active setts unless a licence has been granted.

Water Voles

Water voles are protected under the Wildlife and Countryside Act. Their burrows and riverbank habitats are protected from disturbance or destruction.

Because they live along watercourses, surveys are often required where development occurs near rivers, streams, or drainage ditches.

Reptiles

Several reptiles found in the UK are legally protected, including:

• Slow worms
• Grass snakes
• Common lizards

These species cannot be intentionally killed or injured, which means development sites containing rough grassland or scrub may require reptile surveys.

Wild Birds

All wild birds are protected under the Wildlife and Countryside Act 1981.

It is illegal to damage or destroy an active nest or remove eggs. As a result, vegetation clearance is often scheduled outside the bird breeding season where possible.

In addition to legally protected species, planning authorities also consider Species of Principal Importance under the Natural Environment and Rural Communities (NERC) Act.

These species are recognised as important for biodiversity conservation and must be considered in the planning process.

While they may not receive the same strict legal protection as European Protected Species, development proposals should still aim to avoid significant ecological impacts on these species and their habitats.

For development projects, understanding which wildlife species are legally protected can play an important role in the planning process.

Local authorities must ensure that development proposals comply with environmental legislation. If protected species may be present on a site, ecological surveys are usually required to assess potential impacts.

These surveys help determine:

• Whether protected species are present
• How development could affect them
• What mitigation measures may be required

Without this information, planning applications may be delayed or refused.

Early ecological advice helps identify potential risks and ensures environmental considerations are addressed before designs are finalised.

Who enforces wildlife protection laws?

Wildlife protection laws are primarily enforced by organisations such as Natural England, local authorities, and environmental regulators. In some cases, the police may also investigate wildlife crime.

What happens if protected species are found on a development site?

If protected species are identified during ecological surveys, mitigation measures may be required. This could include adjusting development designs, creating new habitats, or obtaining a licence before work begins.

Do protected species always stop development?

Not usually. Development can often proceed if suitable mitigation measures are implemented and environmental legislation is followed. Early ecological assessment helps reduce delays.

When are ecological surveys required?

Ecological surveys are usually required when planning applications involve land that may support protected species or valuable habitats. A Preliminary Ecological Appraisal is often the first step.

Understanding which species are protected under environmental law in the UK helps developers avoid unexpected delays during the planning process.

Many ecological surveys must be completed at specific times of year when species are active. If these seasonal windows are missed, surveys may need to wait until the following year.

Seeking ecological advice early allows potential issues to be identified and addressed before planning applications are submitted. This helps maintain project timelines and ensures compliance with environmental legislation.

Understanding ecological legislation and protected species requirements can feel complex, particularly during the early stages of a development project.

Collington Winter Environmental provides expert ecological advice to support planning applications across the UK. Our experienced ecological consultants undertake Preliminary Ecological Appraisals, protected species surveys, ecological impact assessments, and mitigation planning.

By identifying ecological constraints early and providing practical solutions, we help clients manage environmental risks while keeping development projects moving forward.

If you are planning a project and want to understand whether protected species may affect your site, our team would be happy to help. Contact Collington Winter Environmental at info@collingtonwinter.co.uk or by filling in the contact form below for friendly, practical ecological advice tailored to your project.