Architect. Burn was born in Edinburgh, the son of another architect, Robert Burn (1752 - 1815). He worked both in London and Edinburgh during his career. Burn was a pioneer of the Scottish Baronial style, perfected by his pupil David Bryce (1803-76). He designed many Scottish churches, public buildings and country houses, including Blairquhan Castle, South Ayrshire (1821), the New Abbey Church in Dunfermline (1821) and John Watson's Hospital in Edinburgh (1828, now the Scottish National Gallery of Modern Art).
He died in London and lies buried in Kensal Green Cemetery.