Siddington was given to the Knights Templar in about 1200. It is likely that the Tithe Barn was built by them soon after. The barn has had has had an eventful life, it now consists of a five bay barn with two raised-cruck trusses in the middle and two aisle trusses, one at each end (cf Middle Littleton Tithe Barn). Details of the carpentry and dendro-chronology suggest a date round about 1245, but details in the stone work suggest a possible Saxon origin.
A barn was added at one end in the eighteenth century, but the position of the wagon entrance suggests that the original barn may well have extended over the length of the two current barns. The wagon porch at the rear has been converted into a dwelling although prior to that it was a brewhouse.
