We have run into some trouble regarding the building inspection by an architect. It seems they have pretty definite ideas about what constitutes a safe environment for the kids. We are having to remove our gas water heater and will likely have to remodel a bathroom and completely tear down a little office that the previous owners had built. All said, the cost to get the architect to sign off that our building is safe is around 100,000 to 150,000. That number comes from asking three different architects, one of which said our apartment is completely unsuitable to be a buxiban.