Very roomy and my exceptionally large 3-year old (easily as tall as 4 year olds, if not bigger) loves it. Looks forward to going in it every day. Plenty of room for him in coming years, too. Not sure why others find it too small. But, like others have mentioned (I think), the pre-made assembly holes are off in a multiple locations. Biggest mistake was with the roofing support beam. I had to make new holes because the provided one did not even pierce the sides of the cottage—when "screwed in placSee full review