Built of Kentish ragstone, facing Stable Court, its north-facing slit windows ensured ventilation yet allowed cool storage conditions for hay and grain. For the next three centuries it continued in use as Knole’s ownership passed from the See of Canterbury to the Tudor Monarchy and in 1604, to the aristocratic Sackville family, well connected to the Stuart Court.
In 1887, the Barn suffered an intense fire. Newspaper reports described the medieval roof burning fiercely for five days and 250 tons of hay destroyed. Fire crews with horse-drawn steam pumps attracted many spectators.