From the middle of Wiveliscombe take the the small road next to Webbers Estate Agents that is called Silver Street and keep walking and it will turn into Golden Hill. You can see a patch of grass with a sign that says Wyndhams and beyond that on the right hand side of Golden Hill there is a concrete road leading up to where the Greenhouse is situated. You can see the building in front of you as you walk up that road. The double doors of the studio will be open and you will be able to see where the exhibition is.
Parking is horrendous in that part of Wiveliscombe so it is best to use the Car Parks in the middle of the town and then walk.