The United Kingdom is home to a rich and diverse array of flora and fauna, from ancient woodlands and wetlands to coastal habitats and grasslands. These ecosystems are vital not only for the species that inhabit them but also for the services they provide to humans, such as clean air, water filtration, and flood regulation. However, habitat loss and fragmentation have become pressing issues in recent decades, threatening biodiversity and the long-term health of ecosystems in the UK. This essay provides an overview of habitat loss and fragmentation, their causes, their effects on the UK’s wildlife, and the measures being taken to address these challenges.