From Carmarthen: take the A40 west to St. Clears. After 3 miles turn right, signposted to Bancyfelin. the entrance of Sarnau Mansion is on the right, approximately 1/2 mile.

From St Clears: take the A40 in the direction of Carmarthen. Turn left to bancyfelin, go through the village and after approximately one mile you will see the entrance to Sarnau Mansion on the left.

The nearest train station is 4 miles away at Carmarthen.