1836 – Rostrevor House, Rostrevor, Co. Down Architect: William Deane Butler Constructed to replace an earlier house, known as Carrickbawn which was built by the Maguires and known locally as ‘Topsy-Turvy’,
1855 – Ballyedmond Castle, Rostrevor, Co. Down Architect: Charles Lanyon Ballyedmond Castle was a Tudor-Baronial mansion, with pointed gables, mullioned windows; a battlemented tower and conical-roofed turret.
1874 – Villas, Rostrevor, Co. Down Architect: William J. Watson Terrace of four villas constructed in Rostrevor, and published in The Irish Builder, May 15 1874.
1876 – Great Northern Hotel, Rostrevor, Co. Down Architect: William J. Watson A large hotel facing Carlingford Lough, with a main frontage of almost 150 feet broken into a central block and two lower wings.
1888 – Rostrevor Hydro, Co. Down Architect: William J. Watson Also known as Knockbarragh. Ahead of its construction, it received a description in The Irish Builder –
1899 – Victoria Home, Rostrevor, Co. Down Architect: William J. Watson Built in the mid-1890s for the Girls Friendly Society of Ireland, who asked for and received Royal permission to call it the Queen Victoria Home in 1901.