There is a direct service from Exeter St David’s to Starcross. Powderham Castle is less than two miles from Starcross. You can either catch the bus from here, or it is a 30 minute walk.
From the south leave the A38 at the ‘Wobbly Wheel Junction’ and merge onto the A379 (signposted Dawlish). At the Marsh Barton Roundabout take the 3rd exit onto the A379 then at the Matford Roundabout take the 2nd exit onto the A379 and follow the Powderham Castle brown tourist signs. The Castle entrance is on the left-hand side as you are leaving the village of Kenton.
From the north leave the M5 at junction 30 and proceed towards Exeter joining the A379. At the Matford Roundabout take the 1st exit onto the A379 signposted to Dawlish then follow the Powderham Castle brown tourist signs. The Castle entrance is on the left-hand side as you are leaving the village of Kenton.
Please note that if you have a SATNAV it may direct you around the back of Powderham. Make sure you stay on the A379.