Dimlands was a small scale, gentry house on the north side of St Donats Road about 6 miles (9.7 km) southwest of Cowbridge in the Vale of Glamorgan, southeast Wales. Built like a small Tudor castle, it is situated about 1 kilometre (0.62 mi) back from the clifftops of the Bristol Channel between Llantwit Major and St Donats. The main house was demolished after a fire in 1948, but its lodge, in a similar castellated style, survives and became a Grade II listed building on 9 October 1982.

Llantwit Major is a town and community in Wales on the Bristol Channel coast. It is one of four towns in the Vale of Glamorgan, with the third largest population after Barry and Penarth, and ahead of Cowbridge. It is 4+1⁄2 miles (7.2 km) from Cowbridge, 9 miles (14 km) from Bridgend, 10 miles (16 km) from Barry, and 15 miles (24 km) from Cardiff. It had a population of 9,530 in 2021.