Tags: Site Of Special Scientific Interest.
Sylvan House Barn (grid reference SO534023) is a 0.005-hectare (0.012-acre) stone built barn near the village of St Briavels in the Forest of Dean Gloucestershire. Because of its breeding bats the site was notified as a biological Site of Special Scientific Interest in 1995.Sylvan House Barn supports a breeding roost of Lesser horseshoe bats which consists of one fifth of the known Gloucestershire breeding population and has been deemed by Natural England to be of national importance.