Newington House, Regency architecture house in Silverwater, Australia

Newington House is a two-storey Regency villa built between 1829 and 1832 on the southern bank of the Parramatta River at Silverwater. Its symmetrical front has a central pedimented break-front, a main door with a decorative fanlight, and a later verandah that forms a portal to the house. A square tower with a pyramidal roof rises at one side.

John Blaxland acquired 520 hectares here in 1807 and named the estate after his family property in Kent. The Regency villa was built between 1829 and 1832, with its design attributed to John Verge or Henry Cooper, though no original drawings survive. From 1860 the Methodist Church leased the estate and founded Newington College, which stayed until 1880. The Crown bought about 19 hectares including the house in 1897 for an aged women's asylum.

John Blaxland named the estate after his family's property in Kent, England. The house later gave its name to Newington College, founded on the estate by the Methodist Church and based there until 1880. The building now serves as the administration block of the Silverwater Correctional Centre, so it is seen from outside rather than entered.

Newington House stands in the centre of the Silverwater Correctional Centre, on the southern bank of the Parramatta River about 20 kilometres west of Sydney's central business district. The house and its chapel are enclosed by the prison grounds, so the building is seen from outside rather than entered.

John Blaxland set up salt pans on the Parramatta River bank and by 1827 was producing 8 tons of salt a week for the Sydney market. He also ran a tweed mill, a lime kiln and a flour mill on the estate, and the house later became the founding site of Newington College.