Yet it is not the manor that dominates the site. The nearby tithe barn is 140 feet long and 29 feet high, and entirely framed in oak. Grade II* listed, the barn dates back to 1506. Although called a tithe barn, the building was not actually used to store the Church's decimation of farm produce.
Harrow Council restored the barn in the 1970s, but unsympathetic lighting and heating vents, and inappropriate modern materials, rather spoil the grand interior. The exterior, though, is glorious; and it is hoped that a lottery grant will help fund a new restoration that will put right the mistakes of the past.