I would not trust your contractor 100%, the work will also be approved if it is beyond the requirements.
Costing more $$
For example; many have paid for raising the floor when it was not required.
Know the requirements before getting bids by talking to the building dept.
I did all the work myself other than the plans being approved with special glass windows the process was painless.
two inspections done!
cost $4,000 in materiel for a 13x28 room.
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