The Southfield Roundabout near Ilminster is where the A303 and the A358 from Taunton (and the M5 ) intersect. Broadway is only 1 mile from this roundabout and can be approached by taking the A358 exit signposted to Chard, then right at signpost for Horton and finally right into Suggs Lane, Broadway.
Riverside Farm B&B is easy to identify as it has wooden railings and trees on its boundary.