Bourtreehill is a large housing estate built by the Irvine Development Corporation (IDC) in the late 1970s which forms part of the Irvine New Town in North Ayrshire, Scotland. The estate has two main parts, known as Bourtreehill North and Bourtreehill South. Along its southern border runs the Broomlands estate. The Bourtreehill South area has suffered from anti-social behaviour.