Housing - As introduced, provides for the regulation of accessory dwelling units. - Amends TCA Title 5; Title 6; Title 7; Title 13; Title 66 and Title 68.

SB 2131 regulates accessory dwelling units (ADUs), which are secondary housing units (like in-law suites or backyard cottages) on lots zoned for single-family or duplex homes. The bill prohibits local governments from imposing more restrictive rules on ADUs than on primary homes, such as requiring smaller sizes (minimum 850 sq ft), banning ADUs on single-family lots, mandating owner occupancy, or limiting parking. It also requires local governments to process ADU building permits within 60 days without discretionary review or extra hearings. This bill directly affects homeowners seeking to build ADUs and local governments managing zoning and building codes across Tennessee.