The Elm Gallery is part of The Old Post House in Topcliffe, which is a Grade II listed building dating from the 1700s. The building was bought by Liz and Dave Marsh in October 2015, after having obtained planning permission to convert the commercial side of the building to a gallery. The rest of the building is their home. In the 1700s, The Old Post House would have been a house or inn for exchanging post-horses and accommodating postriders. Until about 40 years ago, The Old Post House was the village post office and still has the original post office window as well as the postbox, which is now sealed.