Georgia House Bill 1166 (HB 1166) is a recent housing/zoning bill (2025–2026 legislative session) focused on allowing small “tiny homes” or accessory dwelling units (ADUs) across the state.

???? Core idea
HB 1166 would limit local governments’ ability to block very small residential units (400 sq ft or less) through zoning rules.

 
???? What the bill does
Allows small homes (≤ 400 sq ft) to be built on residential property
Removes the need for local zoning approval for those units
Lets homeowners add one small secondary unit (ADU) on their property
Effectively creates a statewide exemption from zoning barriers for these tiny homes
???? In plain terms:
If you own a home in a residential zone, this bill would make it much easier to add a small backyard cottage or “tiny home” without needing local rezoning approval.

 
⚖️ What it does not remove
Local governments still control important rules, including:

Building codes and safety standards
Septic and utility requirements
Floodplain and environmental rules
Historic district protections
So it removes zoning barriers, but not safety or infrastructure oversight.

 
???? Why it’s being proposed
Supporters say it could:

Increase affordable housing options
Allow multigenerational living (aging parents, adult children, caregivers)
Add housing without large developments
 
⚠️ Concerns and controversy
Critics worry about:

Strain on water, sewer, and infrastructure
Changes to neighborhood density and character
Potential misuse by investors (though the bill includes limits)
 
???? Current status (as of March 2026)
Passed the Georgia House
Moved to the Senate for consideration
 
Bottom line
HB 1166 is essentially a state-level push to legalize small backyard homes (tiny homes/ADUs) across Georgia by overriding local zoning restrictions, while still keeping health and safety rules in place.