Cogges Manor Farm Museum in Oxfordshire is run by a Trust which took over from Oxford County Council in 2011. It is open to the public during the summer, but except for special events, the farm is not open during the winter. Check the website for opening times.
There are two barns set at right angles to each other. The larger one is the wheat barn, dating from the seventeenth century when arable farming was the main activity. The adjacent barn was probably added later, possibly in the eighteenth century.