Chattanooga was awarded up to $750,000 from Bloomberg Philanthropies to help speed up backyard homes, also called accessory dwelling units (ADUs). If you are thinking about adding a small home behind your house, for family, a renter, or extra income, the insurance side deserves as much planning as the permit.
Step 1: Insure the Build, Not Just the House
Once construction starts, your standard homeowners policy may not respond the way you expect. Materials stored on site, work in progress, and damage caused by a contractor can fall into gaps. Ask your agent about builder's risk coverage, and confirm your contractor carries their own general liability and workers' compensation. Request certificates of insurance before the first nail goes in.
Step 2: Tell Your Insurer Before You Rent It
A backyard home used by a family member is one risk. A backyard home rented to a tenant is another. If you rent it, your homeowners policy may need a landlord or dwelling-fire endorsement, or a separate policy for the unit. Skipping that conversation is one of the most common ways a claim gets denied.
Step 3: Match Coverage to the New Value
Adding a second dwelling raises your property's replacement cost. Update your coverage limits for the main house, other structures, and liability. Detached units are usually covered under "Other Structures," which is often only 10% of the main house limit, which may fall short of what a new unit costs to rebuild.
Step 4: Think About Liability
More people on the property means more liability exposure. A personal umbrella policy is inexpensive for the protection it adds, especially if a tenant is involved.
Quick Checklist
- Builder's risk coverage during construction
- Contractor certificates of insurance
- Landlord endorsement or separate policy if rented
- Higher "Other Structures" limit or a dedicated policy
- Umbrella liability coverage
- Flood and wind review if the unit sits in a low-lying or exposed spot
See also our statewide guide, Insuring an Accessory Dwelling Unit (ADU) in Tennessee.
Talk to Local Experts
Insurance is one piece of the puzzle. For real estate help, visit Kings of Real Estate. For mortgage questions, AnnieMac Home Mortgage is at (865) 518-6408. For a no-pressure insurance review, call All Seasons Insurance Group at (865) 263-1400 or visit asigtn.com.
