From Shaftesbury take the A350 to Warminster.  Hugglers Hole is the first turning left past the railway line sign posted Motcombe.   Dyers Mead House is the third property on the left.  A detailed map can be viewed below.

http://www.multimap.com/maps/?t=r#t=r&map=51.0246,-2.19157|14|4&route=DC,-2.19817:51.00566;-2.19403:51.04225,0|shaftesbury%20:sp79hg|Shaftesbury,%20Dorset,%20England,%20SP7%208:SP7%209HG