Earlier Houses: There was at least one earlier house on, or near, the site of the current house.

Built / Designed For: John Williams

House & Family History: During World War II Trehane was requisitioned by the government. In the early years of the war temporary huts were built in the grounds to house Austrian Jewish refugees (one of the huts was restored in the late 20th century). Later the estate was used as a base for American servicemen were who were preparing and training for the June 1944 D-Day landings. In 1946, after the war ended, the house was being restored when a plumber accidentally set fire in the attic; the resulting blaze got quickly out of control and gutted Trehane Manor. The ruins of the house, together with five acres, was listed for sale in 2022 for £600,000.

Garden & Outbuildings: In the mid-19th century Trehane's gardens were considered among the finest in Cornwall.

House Listed: Grade II

Park Listed: Not Listed

Past Seat / Home of: SEATED AT EARLIER HOUSES: Sir John Trehane, 16th century. SEATED AT CURRENT HOUSE: John Williams, 18th century. Captain William Stackhouse Church Pinwill, 19th century. Major Anthony Deakin, mid-20th century. David Trehane, late 20th century.

Current Ownership Type: Individual / Family Trust

Primary Current Ownership Use: Ruinous

House Open to Public: No

Historic Houses Member: No