Thanks callsmall! The link I had for the Claremont House goes to the Kato online catalogue which lists the suggested retail price, but doesn't actually sell the house. Here is the catalogue page for similar houses. (I like the Liberty House as well).
Callsmall found the cream Claremont House on ebay for $18.80 here (there were 10 left at time of post).
(images from ebay listing and Kato online catalogue)