Ok this is really really old now and it was un-savable so yhea...
It too me and my good freind TomDeath about 2 hours to make. As far as I can remeber it just hit the 900 props mark and wasnt causing any bit of lag what-so-ever because it wasnt welded (by lag I mean FPS and ping wise)... not one peice was welded. I had a screenshot somwhere for proof on the props and pings we had but whatever.
The basic outside shot.

The lounge area.

Toilet with lock and 'In use' light.

The doors leading to the bedrooms.

A little hobo area... tom added this I didnt.

If I can be botherd I'll make anouther soon. Remeber this had no welds and was in mine and toms server so that prooves if you dont weld a base... it wont cause lag for anyone.