Architects building dream homes for bats
June 1, 2012 -- Updated 0223 GMT (1023 HKT)
A brown long-eared bat is one of the species the Bat Conservation Trust is looking to protect by encouraging architects to build new homes with bats in mind.
The interior of the attic was constructed in accordance with English legislation which protects bats' roosts.
The Suffolk, England summer house where bats now roost and, at dusk, prey on insects flying above the lake.
A single common pipistrelle can eat around 3,000 in one night.