These are all I could find off hand.  The first one may work ... the second from Turbo Squid is of course pricey.

When the turbosquid models are good you can sort of understand the high prices, but the really sloppy stuff there is just as expensive. The proportions on that house are ... shall we say... interesting ;)
There are a few possibles at Google3Dwarehouse (sketchup models). If they are well made models they should convert to obj without too much drama.

https://3dwarehouse.sketchup.com/model.html?id=5b901a75bc9b8121198ce09b591745ff

https://3dwarehouse.sketchup.com/model.html?id=9bfc4fa5f5796b836539c7d36b84e148

https://3dwarehouse.sketchup.com/model.html?id=46333536c0c83aa99c7cb1dd8b479b8b

Wow! Lots of replies! 

Obm, That first one is really nice. Thanks! I'll look at exporting it. 

Glitterati, I REALLY like that one you linked too, but every time I clicked on the download link, it just gave me a facebook like page and then dumped me back to the index of their models:( Maybe it requires IE or something? (I'm on a mac) 

Boni, thanks for the links. The first one there looks really good, but is it actually a 3d model? I actually like the dollhouse idea...that might make doing interiors easier. But, isn't that for wood cutouts? Maybe I'm totally confused:O