There is a seller who occassionally puts his fashion/barbie size doll house plans on EBAY. He starts the bid at $3. He will email you the plans at the close of the auction. He offers two house plans. That's all I remember.
Also, Houseworks has Fashion Doll House plan books. Go to http://www.dollhouseminiatures.com/barbie/dollhouses.htm. I hope this helps.