These are photos of the stone cottage located on the grounds of Borderland State Park in Easton Massachusetts. The stones are rather large for normal construction, but I would be willing to bet that the construction went fast. All of the stone is local granite.
The walls average at least 14 inches thick. The right hand chimney and the large fireplace on the left are a little too much. This would work well with a large central chimney and fireplace, but the two are very wasteful of materials given the efficiency of modern stoves. The main building is approximately 24 by 32 feet. The thickness of the walls and the size of the central chimney still make this a pretty small house. The square footage would be helped with a loft area.
Notice the pseudo arch above the door. The wedges of stone keep the weight of the roof and stone from pressing down on the door frame.