1855 – Glenavon House, Cookstown, Co. Tyrone Architect: Charles Lanyon or Thomas Turner Italianate country house designed for Thomas Adair. According to Alistair Rowan in The Buildings of Ireland: North West Ulster,
1858 – Stormont Castle, Belfast Architect: Thomas Turner Designed by Thomas Turner with Henry Davison, Turner was the son of the celebrated Richard Turner of Dublin.
1859 – Former Townhall, Derry Architect: Thomas Turner / William J. Given Former townhall sited in the centre of the Diamond – the site of the war memorial today.
1859 – Town Hall, Coleraine, Co. Derry Architect: Thomas Turner Designed by Thomas Turner, the Town Hall was built in 1859 by McLaughlin & Harvey for the then large sum of £4,147,
1866 – Design for steps, City Hall, Dublin Architect: Thomas Turner In 1814, while the building was still the Royal Exchange, the balustrade at the front collapsed killing a number of people in a crowd gathered outside to witness the punishment of a criminal.
1873 – Former Court House, Lurgan, Co. Armagh Architect: Thomas Turner Fine polyhromic brickwork with wonderful chimneys on an awkward corner site, the local Magistrates Court was designed by Thomas Turner with Henry Davison.