Let's Talk Reptiles

Reptiles are partially protected by law in the UK. Reptiles are therefore a material consideration in planning. 

There are six native reptile species in the UK, including Slow-worm, Grass Snake, Smooth Snake, Adder, Common Lizard and Sand Lizard. These reptiles are associated with varying habitats. However, if you have a project on a site supporting semi-natural habitats, particularly including long-sward grassland, heathland, woodland, wetland and coastal land, you may need a survey to establish whether reptiles are present or likely absent. 

It is important to consider the need for reptile surveys early on in a project as surveys are seasonally constrained and best undertaken in April, May and September. Surveys can also be undertaken in June and October if necessary if the weather conditions remain appropriate. July and August are generally too hot to undertake reptile surveys and should generally be avoided. 

Reptile surveys generally involve settings out reptile tins (square pieces of roofing felt or corrugated metal) in areas of suitable habitat at a site. Reptiles are ectothermic (or 'cold-blooded') and are attracted to the tins when they have warmed up in the sun. Reptiles should ideally be left for a period of two weeks before the first survey. A total of seven checks should be undertaken in the morning or evening during dry periods and temperatures of 9-18C. The data collected can then be used to determine presence or likely absence and inform the likely population size at the site.