Some research seems to point to TN allowing for this if the county has chosen to do so https://support.commerce.tn.gov/hc/en-us/articles/208924888-Can-I-build-m

Some research seems to point to TN allowing for this if the county has chosen to do so https://support.commerce.tn.gov/hc/en-us/articles/208924888-Can-I-build-my-own-home-without-a-license https://support.commerce.tn.gov/hc/en-us/articles/208924888-... That’s a pretty cool rule! I think it’s actually super awesome that this dude did this.