An historic building appraisal and archaeological trench evaluation were undertaken to support a planning application for a residential development. Hay Park is a former farm documented from the 17th century. Units 2 and 3 (a former threshing barn) and Unit 6 probably date to the 18th century, whilst Units 4 and 5 were built between 1888 and 1903, and Unit 4 was added as an animal feed mill between 1903 and 1933. The evaluation identified the partial survival of a building - a probable farmhouse of 17th- or 18th-century date - that was recorded on the 1842 Tidcombe tithe map.