Dunkery Hill. Along with Stoke Pero and Horner it forms a civil parish. Horner is on the eastern bank of Horner Water on which there is a restored, but non-working, watermill. The river is crossed by two medieval packhorse bridges, one of which is known as Hacketty Way Bridge which is crossed by the Coleridge Way. The parish Church of St Mary has a chancel dating from about 1300, with the nave and tower being added around 1450. Stoke Pero Church has a 13th-century tower. The Dovecot at Blackford Farm is part of the estate. It was built in the 11th century and is a Grade II* listed building, and ancient monument. It was attached to a mansion house which burnt down in 1875. Since 2009 the estate has been one of three Multi-Objective Flood Management Demonstration Schemes, funded by the Department for Environment, Food and Rural Affairs, to examine how changes in the management of river catchment areas can influence the incidence and severity of flooding in the area. Beavers were re-introduced to assist flood reduction. House and outbuildings There have been at least four successive mansion houses at Holnicote. Limited information is available about the early buildings. One is known to have been built between 1493 and 1521, based on dendrochronology from surviving timbers. The Grade II* listed gatehouse and attached cottage were built together with a new house in the early 17th century. Following the purchase of the estate by the Blackford family in 1705, a new mansion house was built on the site of the previous structure. Only the stable block from that building survives. The house was destroyed by fire in 1779. The Acland family re-built it as a thatched hunting lodge, which was also destroyed by fire in 1851, and replaced in 1861. A kitchen extension was added in 1874. The lodge was built in the 19th century. The estate includes several cottages including Rose Bower and the 17th-century Butlers Cottage. An 18th-century Flemish bond red brick granary also exists on the estate. Holnicote House in the 20th century Holnicote House was donated to the National Trust by Sir Richard Thomas Dyke Acland, 15th Baronet of Killerton in Devon, whose ancestors had owned it since 1745. In 1936 the lodge became a hotel, but was badly damaged by yet another fire in 1941. Mixed race children at Holnicote House during WW2 In 1943, Holnicote