Ecological Surveys

Our team of ecologists are experienced in undertaking a wide range of protected species surveys. From great crested newts to bats, water voles to reptiles, our surveyors hold relevant Natural England survey licences and are accredited with the Chartered Institute of Ecology & Environmental Management (CIEEM) and the Society for the Environment. 

Baseline Data

 At Mortimer Environmental we are committed to the highest standards of ecological survey, monitoring and mitigation. Our ecologists work hard to ensure we provide our clients with the best advice and quality baseline data in support of planning applications, mitigation strategies and detailed designs plans.  

Protected Species Surveys


In the UK, all 18 species of bat are protected by law, meaning it is an offence to disturb them or interfere with their resting places. However, the presence of bats on a site rarely stops development from taking place. A survey and assessment of impacts will be required if a project or development is considered likely to affect bats or their roosts. 

At Mortimer Environmental we can carry out initial surveys for you to determine whether bats are present on your site and assess any potential impacts. Following this, you will receive a report and full guidance on any further surveys and mitigation that may need to be undertaken. Following planning approval, we will apply for relevant licenses on your behalf. All of our experienced field ecologists are members of CIEEM, hold a Natural England bat license and are Chartered Environmentalists, giving you extra piece of mind. In addition, we strive to acheive best ecological practice for all our clients and will offer advice on simple and cost effective solutions for providing bat enhancement features to your project or development.

Please get in touch for a chat, to discuss your requirements or to request a fee proposal.

Great Crested Newts

If your planning authority has indicated that great crested newt surveys are required, our experienced ecologists can provide practical and pragmatic advice for you to achieve your planning goals. We offer an initial habitat suitability index report (HSI) followed by field surveys carried out in line with Natural England guidelines. All work is carried out under license from Natural England. Advice on the need for further surveys will be provided based on the results of these initial assessments. Please be advised that field surveys for great crested newts can only be carried out during peak season (March to June).

Please get in touch to see how we can help.


We can offer advice and practical solutions for issues surrounding any protected species, for example reptiles, badgers, otters, dormice or breeding birds. Please get in touch to discuss your requirements.

Habitat Surveys

Preliminary Ecological Appraisal & Ecological Impact Assessment

Your local planning authority may have requested a 'Preliminary Ecological Appraisal' or PEA. This can help the proposer or planning authority in concluding that ecological issues will not be significant.

At Mortimer Environmental we use an Ecological Impact Assessment (EcIA) process to assess the likely ecological effects of any development project. This can be used to satisfy relevant authorities requests when considering whether a project accords with planning and conservation legislation. 

The starting point is a Preliminary Ecological Appraisal, or PEA, which normally comprises an extended Phase 1 habitat survey. On completion of the PEA, further surveys may be required to support the planning application or otherwise to inform an EcIA. These are known as Phase 2 surveys and will vary depending on the development and habitats present. To discuss these issues further with our experienced ecologists, or to see how we can help you, please get in touch. 

Habitat Regulations Assessment

Habitats Regulations Assessment (HRA) requirements involve land areas covered by the EU Habitats and Wild Birds Directive (e.g. Ramsar sites, SACs and SPAs). HRA requires assessment of plans or projects that may have a 'likely significant effect' on a European site. The UK Government strongly encourage developers to consider possible habitat impacts from the very earliest stages of developing their proposal. Also to engage with regulators and other interested parties to design their proposals so they are compatible with habitats requirements. They also encourage a pragmatic approach to enable development. This is where Mortimer Environmental can help. We can provide ecologically sound and pragmatic advice on your project and liaise with regulators and other interested parties on your behalf, helping to avoid significant delays and additional costs. Please get in touch.