Garden House Sussex, Coates Lane, Fittleworth, West Sussex RH20 1ES. You can plan your route on Google Maps and take a look at our location on Google Earth If using Sat Nav, please use postcode RH20 1EU to find us (avoiding Sandy Lane in Fittleworth). Garden House Sussex is the first house on your left, the Bothy is the second house on your left (against the walled garden) on the driveway to Coates Castle.