Where can i find the bulding laws and codes for my area?

Might buy a small plot of land or get from a family member, but i want to know the local bulding codes and laws for my area

ive tried google but only found copies of building permits... :/

wanna know how large the chunk of land has to be to build and whatnot..Where can i find the bulding laws and codes for my area?
You need to go to your local City or County Building department. While there, also visit the Planning department. The building department will tell you the codes for the building and the planning department will give you setbacks and restrictions, pue's, and tracts for the lot. In many cities in addition to the building code (either the UBC or IRC/IBC), they will have adopted some local amendments.