Can I Build ADU in Memphis, TN? (2026)
Find out if you can build a adu in Memphis, TN. Rules, permit requirements, costs, and next steps.
Whether ADUs are allowed in Memphis, TN has not been confirmed — contact the local building department or see the official source before proceeding.
An Accessory Dwelling Unit (ADU) is a secondary housing unit on a residential lot — also called a granny flat, in-law suite, or backyard cottage. In Memphis, TN, ADU regulations are in flux — state law and local ordinances interact to determine what is permitted. ADUs can be detached, attached to the main home, or created by converting an existing garage or accessory structure.
ADU Rules in Memphis
ADU Rules in Memphis: Detached ADU max size: size varies by zoning — see official source. Attached ADU max size: size varies by zoning — see official source. Setback requirements are not confirmed — see official source. Owner-occupancy: not confirmed — see official source.
Costs & Fees
ADU permits in Memphis: Contact the local building department for current fee schedule.
Next Steps
Next steps for building an ADU in Memphis: 1. Review full ADU rules including size limits, setbacks, and parking. 2. Apply for an ADU permit through the local building department. 3. Hire a licensed contractor familiar with TN ADU requirements.
Memphis Division of Planning and Development
Phone: See official source
Website: https://www.develop901.com/
Online Permits: https://www.memphistn.gov/permits-office/
Frequently Asked Questions
How does Memphis planning differ from Nashville's consolidated metro government?
Memphis and Shelby County have a coordinated but not fully consolidated planning structure. The Memphis and Shelby County Division of Planning and Development handles planning for both the city and county through a shared Unified Development Code (UDC), but Memphis and Shelby County remain separate governments with separate taxation and services. Nashville (Metro Nashville-Davidson County) is a fully consolidated city-county government. For permitting purposes in Memphis city limits, you work with the Memphis Division of Planning and Development.
Can I build an ADU on my Memphis property?
Yes. Memphis allows accessory dwelling units under the Memphis and Shelby County Unified Development Code. Maximum size is typically 900 sqft in standard residential zones. You'll need a building permit from the Division of Planning and Development. Tennessee has no statewide ADU law — Memphis rules govern. No owner-occupancy requirement. MLGW connection fees apply if the ADU has independent utility service.
What is MLGW and how does it affect permits?
MLGW (Memphis Light, Gas, and Water) is a combined municipal utility providing electricity, natural gas, and water service to Memphis and surrounding areas. It is one of the few remaining combined utilities in the US. For solar installations, MLGW interconnection is required. MLGW distributes TVA power — TVA's Green Power Providers program governs net metering-equivalent credits. For new construction or ADUs, MLGW connection fees apply.
Are there historic preservation requirements in my Memphis neighborhood?
Memphis has significant historic resources including Beale Street (blues heritage), Victorian Village, and several Midtown neighborhoods. If your property is a contributing structure in a designated historic district, the Memphis Landmarks Commission may require a Certificate of Appropriateness for exterior modifications. Check the Division of Planning and Development website or contact them to determine your property's historic status.
Is Memphis in a flood zone?
Many Memphis properties near the Mississippi River and Wolf River are in FEMA-designated Special Flood Hazard Areas. The 2011 Mississippi River flood reached record levels in Memphis. Check the FEMA Flood Map Service Center (msc.fema.gov) for your property's designation. Properties in SFHA require flood insurance with federally-backed mortgages. Contact the Memphis stormwater management program for more information.
Source: Memphis Division of Planning and Development — Building Regulations. Last verified April 6, 2026. View source