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.