Yeah, but you would only get a certain number of each tile set.
That way you don't make a huge farm

You would need to have the necessary tiles before saving, otherwise the server will not let you save your house design.

Also, with a tile editor you could make house designs like the following:

1. Huge cave
2. Village
3. Cliffs
4. Bunch of trees, and house in middle

You could be able to make that legend of zelda dream house you always wanted.
Or heck, even Pallet Town.