Architect. Born in Inchture (Perthshire), the son of another Andrew Heiton, who was also an architect. The young Heiton served an apprenticeship with his father who had moved to Perth. He then worked with William Burn (1789 - 1870) and David Bryce (1803-76) in Edinburgh, before returning to practice with his father. The pair built several railway stations (eg. Stirling and Perth) and served as City Architects in Perth from 1856, with Heiton continuing in this role alone after the death of his father in 1858. He became well-known as a builder of country houses, including Castleroy (Broughty Ferry, 1867 now demolished), Vogrie House (Midlothian, 1875) and Fonab Castle (Perthshire, 1892), together with the Greig Institute (Leven, 1872).
He inherited an estate at Darnick in the Scottish Borders and restored its 16th-century tower.
Heiton died in Perth and lies buried in Greyfriars Cemetery there. He is remembered by a window in St. John's Kirk. His practice was taken on by his nephew Andrew Heiton Granger (1862 - 1927), who became known as Andrew Granger Heiton .