More Georgia families are adding accessory dwelling units (ADUs) so aging parents can stay close, and adult children have room to grow. Many people plan around the construction itself and do not think about ownership or the future of the property. However, ADUs do hold equity like other forms of real estate, so it's important to have an agreement in place on who inherits the property and what will happen to it.
This guide covers what your family needs to know about accounting for your ADU in your estate planning.
Disclaimer: This article is intended as general information and isn't a substitute for advice from a licensed estate planning attorney familiar with your family's specific situation.
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Georgia has no state estate tax and no inheritance tax, so a family passing down a property with an ADU won't face a state-level bill on top of federal thresholds. Heirs can skip probate entirely if everyone agrees on arrangements, and smaller estates move through a more simplified process than larger ones. Keep in mind that regardless of estate size, the property can still land in probate court if no proper will is in place.
If your estate plan predates the ADU, it probably doesn't say who's living there now or who helped build it. So make sure you put one in place after you've built the ADU.
When an adult child pays for some or all of an ADU on a parent's property, or a parent chips in toward a unit built for them, that money creates a real financial stake even when nothing on paper reflects it.
Some families add the contributing member to the deed, creating joint tenancy or tenancy in common. Others keep the title as is and record the contribution as a loan, often with a deed of trust. An estate planning attorney can help you land on the structure that fits your family and lines up with your will or trust.
Georgia's standard homestead exemption reduces the taxable value of a primary residence, and most counties add exemptions for seniors or people with disabilities. However, you can only claim it on one property, and it has to be your primary residence.
If a parent moves into the ADU while still holding an exemption on a previous home, that mismatch eventually surfaces with the county. Once their name is on the new deed, their exemption status needs a fresh filing, worth confirming with your county tax assessor's office early in the move.
Many families build an ADU so a parent can age in place with support nearby. If your parent is on Medicaid, check to see how the property could affect their eligibility if long-term care becomes necessary.
Home equity counts toward Medicaid asset limits once it passes a set threshold, and protecting it through a transfer or trust needs a long runway, since look-back periods can stretch back several years. If Medicaid could realistically factor into your family's future, loop in an elder law attorney while you're still planning the ADU.
Even when no money changes hands and the title stays untouched, write down expectations, including who covers utilities and upkeep, and what happens if the parent living there eventually needs to move to a care facility. Having a written agreement can prevent conflict and confusion during challenging times and allow the right persons to understand their obligations.
Choosing the right next step for an aging parent is a big decision. A nursing home or assisted living facility may be the right choice when more intensive care is needed, but for families who want privacy and a familiar home environment, an ADU can be a practical option to explore.
SmartSpaces ADUs designs and builds backyard homes, garage apartments, and in-law suites for homeowners across the Atlanta metro. Before we start any work, we will do a feasibility review to help you understand what your property can support and which ADU plan will fit your family's needs.
Start by browsing our portfolio to see how other Atlanta homeowners have used ADUs to create more flexible living space for their families.
Connect with our team to start reviewing ADU plans and financing options together. We'd love to help you think through what is possible for your family.