Biddick Hall is a small privately owned 18th-century country mansion at Bournmoor, County Durham, near the City of Sunderland and Chester-le-Street.
The Lambtons purchased the manor house and estate at South Biddick then comprising about 450 acres (1.8 km2) from the Bowes family in about 1594.
In the early 18th century the old manor was replaced with the present red brick and stone, two-storeyed, five-bay mansion in a Queen Anne Baroque style.
The central entrance bay has Ionic order pilasters carrying entablature and pediment.
One of the tenants was Frank Stobart, Agent to the Earl, and Deputy Lieutenant and High Sheriff of Durham in 1906.