Bat Survey in Maidenhead

When undertaking a Bat Survey in Maidenhead, you never know what may surprise you.

We have been working with the guys over at HollandGreen on several projects but this property was the first which held a special surprise.

HollandGreen has a team of talented architects, technicians and interiors experts.

They operate from three studios, in Thame, Hampton and the Cotswolds, Covering Maidenhead, Berkshire, Oxfordshire, the Cotswolds, Buckinghamshire, Surrey and London.

Bat Roost Assessment

During the Preliminary Roost Assessment, The house initially offered very little for bats.

However, a few droppings were found on the wall to the rear. Furthermore, a small gap between the fascia boarding confirmed that bat surveys would be required.

The droppings were small and tapered at the ends, meaning they were most likely a pipistrelle species.

Maidenhead Bat Activity Surveys

Based on the evidence, additional bat surveys were booked.

Two weeks later we arrived for a dawn activity survey. The activity was minimal with just a few bats passing the area and nothing seemingly using the house as a roost.

How things can change!

Our team returned to the building 15 days later to undertake the second bat survey.

Yet, despite it being a rather quiet survey on the first visit 40+ Soprano Pipistrelle emerged from the flat roof to the rear, this time around.

Yes! We had a maternity roost.

The Final Bat Survey in Berkshire

Arriving early with excitement to undertake the final bat survey in Maidenhead, we met up with Laira from HollandGreen to show her what we’d found so far.

Laira is very keen to implement the right environment for the bats within the design of the project.

An infrared camera was placed to the rear focused on the area of bats emergence during the second survey.

However, the bats had other ideas.

Garry was seated on the front when several female Soprano Pips started to leave the building this time to the front of the building.

This is due to the summer heat, meaning the mothers moved their babies to a slightly cooler area within the roof.

Scott rushed to the front with the camera equipment and we proceeded to document the most amazing footage of ‘BABY BATS’ and their mothers.

In total around 80 bats left the roost.

Bat Mitigation Maidenhead

The next steps for this project will be continued monitoring of the site. We will also work with the architect to design the perfect environment to retain the bat roost.

Furthermore, Chase Ecology will design a mitigation strategy.

Finally, we’ll apply for a mitigation licence with Natural England.


We're one of the very few ecology companies in the UK that hold a Bat Low Impact Licence with Natural England. This means that on average we are 60 days faster than others in securing your mitigation documents to ensure you have no delays in starting your development.

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