Not quite correct. I went looking to keep some contractors honest. Most counties have no county codes; but follow Missouri State building codes. Missouri follows ASTM blah blah blah codes.
That being said, out here no one pulls out a bureaucrat for every little bit of work; or lack thereof.
No codes in Douglas county:
data.mo.gov
I did read somewhere the state
recommends that architects follow the latest IBC when designing.
Around here is a minimum 25 acre zone per residence/farm. Might be because this is the Mark Twain Forest area and they don't want apartments and 7-11s.
Not sure where you are but, we have 20 acres, neighbors have 20, 7, 5, 8, 6.6
