Urban bats face threats from roost disturbance, light pollution, and habitat loss, and their welfare is protected by legislation in many countries.
Urban bat welfare is primarily threatened by human modification of roost sites and foraging habitat. Bats that roost in buildings face disturbance during renovation, inappropriate chemical treatments of timber, and exclusion during sensitive periods. The legal protection of bats and their roosts in most European countries reflects recognition of their vulnerability and conservation importance. Understanding bat roosting requirements and seasonal sensitivities enables homeowners and builders to coexist with these ecologically important animals without welfare harm. Providing bat boxes as alternative roost sites enhances urban bat habitat.