Park House (Welsh: Tŷ Parc; formerly McConnochie House), 20 Park Place, Cardiff, Wales, is a nineteenth century town house. It was built for John McConnochie, Chief Engineer to the Bute Docks, by the Gothic revivalist architect William Burges. It is a Grade I listed building. The architectural historian John Newman writes that the architectural style of the house "revolutionized Cardiff's domestic architecture," and Cadw considers the building "perhaps the most important 19th century house in Wales."