Other Mammal Surveys (inc Dormouse, Water Vole, Otter)

From £399

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Dormice, water voles, red squirrels and otters, among various other mammals are legally protected. Generally walkover surveys and mitigation plans can be undertaken at any time of the year, though some specialist surveys are seasonal.

Full UK Coverage

Our experienced team of surveyors cover all areas of the UK.

Unbeatable Price

Our attention to detail, investment in technology and sheer scale allow us to keep prices low.

Money back guarantee

Your planning authority will accept our report, or you get your money back!

Unbeatable Speed

Instant quotes. Enquiries responded to in hours, not days. Surveys in days, not weeks.

We SAVE You Money

Our efficiency and expertise has saved our customers tens of millions of pounds in delays on site.

Proven Record

We provide thousands of ecological or arboricultural surveys each year.

How it Works

We know speed is important to you. That's why we are obsessed with delivering the fastest, most efficient service possible. Here's how it works:

Step 1

Fill in the form or call us

We will take your details and send you a quote explaining everything you need to know. We will also send a booking form along with the quote.

Step 2

Give us the go-ahead

Complete the booking form and email it back to us. We'll then arrange a date for your survey and get to work.

Step 3

Get Your Report

Once your Other Mammal Surveys (inc Dormouse, Water Vole, Otter) is complete we will write your report. You can make payment via a bank transfer or by card over the phone.

Client Feedback

Extended Phase 1 Habitat Survey

We found Craig to be very professional, knowledgeable and personable. He did a wonderfully thorough job and completed everything very quickly. He gave us plenty of excellent advice, which was much appreciated.

5 stars
Scoping Bat Survey (Walkover)

Super speedy service, excellent communication and friendly staff.

5 stars
Arboricultural Method Statement, Tree Protection Plan

Matt was very quick to pick up the file and realised the importance of getting it done ASAP so we could amend our planning application. Matt also made us aware of the negative areas we had within the application and those that could possible effect...

5 stars

When can this survey be done?

Jan January - no
Feb February - no
Mar March - maybe
Apr April - yes
May May - yes
Jun June - yes
Jul July - yes
Aug August - yes
Sep September - yes
Oct October - maybe
Nov November - no
Dec December - no

Yes Ask Us No

Learn More

Surveys for mammals such as dormice (Gliridae ssp.), water voles (Arvicola amphibius), otters (Lutra lutra) and red squirrels (Sciurus vulgaris) are not common. If your local planning authority has asked you for a survey for any of these animals, you should contact one of our ecologists to talk about your site and how it could be impacted upon.


Field mouse (Apodemus sylvaticus) caught during a study for dormice.

Each of these mammals presents its own unique constraints to development applications and their surveys can have stringent seasonal restrictions that may present you with considerable site delays if the matter is not addressed as early as possible.

In the case of water voles and otters, clearly you are less likely to put the habitat these species use at any significant risk unless you are looking to develop proximate to the bank of slow moving streams and rivers (even ditches).

Likewise, the distribution and ranges of red squirrels is not broad and being constrained by their presence across large areas of the UK is unlikely. Dormice however, have a much wider distribution across the country, especially in England and Wales. Most surveys that your local planning authority will ask you for in respect to mammal species will either involve trapping, which is seasonal, or will be scoping exercises.

Scoping exercise aim to provide sufficient justification for trapping to be employed, or to provide some scientifically valid study that justifies the lack on any further action. In the case of the latter, this might be the absence of burrows, latrines and footprints, as well as other field signs including e.g. half-eaten vegetation and/or prey remains.

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