The building is now roofless. It dates from various periods, with substantial parts from the Romanesque period, and quire steeple and north aisle added by John Milne the royal master mason in 1647. Access to the kirk is restricted for safety reasons. The graveyard includes a number of cast iron ‘mortsafes’, large coffin shaped containers used to thwart the plans of the body snatchers in the early 19th century.
- Contract June 1647 in the Elphinstone family papers, National Records of Scotland NRS GD156/8.
- Scott, Ian. "Airth’s fascinating history written in stone", The Falkirk Herald, 28 June 2014
- Historic Environment Scotland. "Airth Old Church,church,Airth Castle (SM2228)". Retrieved 24 February 2019.