I built this maison de poche (Pocket House), which the terrain size is only 10X10 and that costs §16 490, to be able to place it almost everywhere (on a beach, in the middle of a forest...)
Terrain size: 10X10.
File size: 3,25 Mo
Add-ons required: WA, Generations (maybe Pets for the roof colour, I'm not sure)
I am trying to build something bigger and more exciting for my next upload.