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Looking for accessory dwelling unit permit cost in Nashville-Davidson metropolitan government (balance), TN? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Nashville-Davidson metropolitan government (balance) and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

Looking to add an ADU in Nashville? Whether you're in Belle Meade or East Nashville, creating a separate dwelling unit can be a fantastic investment. Nashville-Davidson Metro has specific guidelines to follow for ADUs, covering everything from size restrictions to parking requirements. It's important to get a clear understanding of these before you begin. When you think about the cost, consider how factors like the chosen construction materials, the complexity of the plumbing and electrical work, and the finishing touches will add up. We aim to make the process of finding the right professionals as simple as possible for you. Let's get your ADU plans moving forward.

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

Frequently asked in Nashville-Davidson metropolitan government (balance)

What are the disadvantages of ADUs in Nashville?

Potential disadvantages in Nashville could include the initial construction investment and ensuring adequate space on your property. You'll also need to comply with Metro's specific zoning and building codes. Thorough planning is essential to avoid issues.

How much does an ADU permit cost in Nashville?

What are the rules for ADUs in Nashville?

Nashville-Davidson Metro has clear rules for ADUs, including regulations on lot size, building height, and the relationship to the primary dwelling. Understanding these requirements is crucial for a successful build. We can help you navigate these regulations.

Is an ADU allowed in Nashville?

Yes, ADUs are permitted in Nashville, provided they meet all the requirements set forth by Metro's zoning and building codes. They are increasingly common as a way to add housing density. The key is confirming compliance with local ordinances.

What affects ADU costs in Nashville?

The cost of an ADU in Nashville is influenced by the quality of materials selected, the type of foundation, and the scope of interior and exterior finishes. The complexity of utility hookups and any necessary site preparation also contribute to the expense. Local labor rates are a consideration.

Can I get advice on ADU zoning in Nashville?

All cities in Tennessee →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

687,788residents

—ZIP codes served

Serving all of Nashville-Davidson metropolitan government (balance) — population 687,788.

Neighborhoods served in Nashville-Davidson metropolitan government (balance): The Gulch, Germantown, Midtown, East Nashville, Belle Meade — and every surrounding area.