Under the Wildlife and Countryside Act 1981 (as amended), it is illegal to kill, injure or remove them from their habitats. Smooth snakes and sand lizards are European Protected Species (EPS); therefore, it is also illegal to disturb or destroy their resting places.

To determine the presence or likely absence of reptiles, survey work must be done in areas of potential habitat.

Our ecology consultants have extensive experience in delivering projects with reptile constraints. We can advise on mitigation strategies, reptile habitat creation and their safe translocation.

The UK is home to six native species of reptile:

  • Grass snake (Natrix Helvetica),
  • Adder (Vipera berus),
  • Smooth snake (Coronella austriaca),
  • Slow worm (Anguis fragilis),
  • Common lizard (Zootoca vivipara) and
  • Sand lizard (Lacerta agilis).
Barry Wheeler

Barry Wheeler

Managing Director – ADAS Environment

Survey timings

Reptile surveys can be undertaken when temperature and weather conditions are right. This is usually between March and September, with April and May being optimal.

Surveys normally consist of the distribution of refugia (e.g., roofing felt or corrugated metal which reptiles use for shelter and to regulate their temperature) in areas of suitable habitat.

Our ecologists will check these refugia on an appropriate number of separate occasions and record any reptiles we find.

Sand lizard in grass

If reptiles are on site

If a population of common reptiles is on site, we can create a method statement for any planning application. This will detail plans for excluding reptiles from the site. If the impact on them cannot be avoided, it may be possible to translocate them to a suitable area. Our ecologists can assist with finding or creating suitable alternative habitat.

the case of smooth snakes and sand lizards, you will need to make an application to the applicable statutory nature conservation body, e.g., Natural England, for an EPS mitigation licence. ADAS ecologists can assist with this process if needed.

Migration calendar

  • January – March: Above ground clearance may be possible
  • April – October: Vegetation removal possible (with possible restrictions at some sites)
  • November – December: Above ground clearance may be possible
Reptiles - mitigation calendar

Other ecology services

Otter surveys

Otter surveys

Ecological impact assessments

Ecological impact assessments

Bird surveys

Bird surveys

Accredited Ecological clerk of works

Accredited Ecological clerk of works

Bat surveys

Bat surveys

Responsible body for conservation covenants

Responsible body for conservation covenants

Preliminary ecological appraisal

Preliminary ecological appraisal

Biodiversity net gain

Biodiversity net gain

Great crested newt surveys

Great crested newt surveys

Hazel dormice surveys

Hazel dormice surveys

Water vole surveys

Water vole surveys