Posted by: submark December 29, 2017
Do we need any kind of permission to add a room in a house in USA?
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step 1 : Talk to your HOA (they give you an idea ) if exists.
step 2: almost all city has Public work department usually they regulate this things.
If you live in california, new york states they have very stringent requirements to get permit so might be very expensive but in some states eg arizona, texas might be super easy.

You can talk to local contractors too so they guide you because the have hands on experience on that.
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