The parkland is the home of the 224 acre (90 ha) Yorkshire Sculpture Park and the 100 acre (40 ha) Bretton Country Park which has been a designated local nature reserve since 1994. The development of accommodation and car parks for the college and multiple use as a country and sculpture park and general neglect in the second half of the 20th century led to the historic landscape's fragmentation and it was designated "at risk" by English Heritage in 2009. Yorkshire Sculpture Park is now responsible for most of the park and, in partnership with Natural England, who provided funding, and English Heritage, has a conservation management plan for the park. Trees and scrub have been cleared to provide access to a lakeside perimeter walk.