This is a modular dolls' house that can be arranged in several combinations. I had a lot of fun drawing the rooms and the furniture.
I never had a dolls' house, I used to build it with paper when I was a little kid, and it was one of my favourite fantastic game scenarios.
Print the parts you prefer, there are 8 different pieces, the first 5 files are the square rooms, the last 3 are he triangle rooms/roof parts.
Everything can be printed without support material. The chairs have thin supports among the legs. You can decide to keep it, or cut it away.
The sofa is a derivative of this file: http://www.thingiverse.com/thing:4872
In some rooms there are "nails" on the wall where kids can hang the clock, the mirror, or the painings. Or maybe the doll's dress.
I thought not to waste too much plastic designing these pieces, I also suggest an infill of 0.2 (20%). The furniture has tiny parts so I don't think it is suitable for children younger than 3 years, while I think the rooms could be ok for them too.