From M25:

At junction 2 take the A2 exit to London/Canterbury/ M2; keep right at the fork to continue toward A2 and merge onto A2; continue on M2 (signs for Dover/M2/Canterbury/Chatham); at junction 5 take the A249 exit to Sittingbourne/Sheerness; turn left at A249; take the A2 exit; at the roundabout take the 4th exit onto A2/Key St; continue to follow A2; turn left at A2/St. Michael’s Rd; continue to follow A2; go through 2 roundabouts; continue to follow A2 to Bapchild; pass the Harvest Garage on the right; turn right and take second lane on the left to enter Hempstead House car park.

From Dover:

Head southeast on A256/Maisondieu Rd toward The Paddock; turn right at A256/Priory Street; at the roundabout take the 3rd exit onto Priory Rd; continue on A256/High St; continue to follow A256; at the roundabout take the 2nd exit onto A256/Whitfield Hill; at the roundabout take the 1st exit onto A2 go through 2 roundabouts; continue on A2 thorough Canterbury, Faversham and Teynham; turn left before the Esso Garage and take second lane on the left to enter Hempstead House car park.