How Much Does an ADU Cost in Atlanta?

Adding an accessory dwelling unit, otherwise known as an ADU, to your property can feel like a fresh chapter for your home. ADUs offer incredible potential and immense flexibility for your family. 

In our latest blog, our team at SmartSpaces ADUs has provided a 'building an ADU cost breakdown' because we understand that finding out costs is likely where you want to begin your journey. So, if you want to learn how much it is to build an ADU in Atlanta, why homeowners are choosing to make the leap with them, and the ways you can save, continue reading. 

Why Homeowners in Atlanta Are Choosing Affordable ADUs

Before we dive into the average cost of an ADU in Atlanta, you might want to first learn more about why homeowners like yourself are considering building accessory dwelling units, whether attached or detached. 

Love of the Community

People love their community. They don't want to leave the community they love just to increase their living space, and this is something we can understand at SmartSpaces ADUs. By choosing an ADU, you'll get to remain in place in the home you love, surrounded by a community you care for, while giving yourself that little bit of extra room. 

Secondary Residences and Holiday Homes

ADUs are becoming immensely popular as a secondary residence for aging parents or grown children. We've seen an increasing number of clients come to us, asking about building a tiny home or secondary residence (ADU) on their property for their parents who require more mobility assistance and their children who need a little more time before they go out on their own or a place to stay when visiting from college. 

Thanks to our experience, we're able to design accessible ADUs for aging parents to maintain their independence. We're also able to build modern tiny homes for children who are not yet flying the nest or who love to visit during the holidays. 

Rental Potential

Many homeowners are choosing to build an ADU because of its potential to increase a property's value and its ability to act as a rental unit. With an ADU that you rent out for the short term, you can build savings for the future or enjoy added monthly income. 

How Much Does an ADU Cost in Atlanta? A Clear Picture of Starting Prices

The cost to build an accessory dwelling unit will vary based on many different factors. Below, our team has briefly discussed the cost of building an ADU in 2025 based on generalized pricing and common factors that can impact the costs. 

If you would like a better cost estimate for your ADU, you can speak with us, and we can give you a better idea of what yours will cost to build: 

• How much does a tiny house cost?: In Atlanta, a quality tiny house typically costs between $50,000 and $120,000, depending on size, materials, and custom features. Premium finishes or off‑grid options push prices higher.
• How much does it cost to convert a garage into an ADU?: Converting a garage into an ADU in Atlanta usually costs $80,000 to $150,000. Final pricing depends on plumbing, electrical upgrades, permits, insulation, and interior finishes chosen for the project.
• How much does it cost to build a studio ADU in Atlanta? It typically begins around $75,000, depending on design, permits, and upgrades.
• How much does it cost to build a one‑bedroom ADU in Atlanta? It often starts near $125,000, shaped by finishes and site conditions.
• How much does it cost to build a two‑bedroom ADU in Atlanta? It typically starts at around $175,000, although customization and premium features can increase the cost.

When you work with us, the above will not be cookie‑cutter builds. Each project meets Atlanta's building requirements and is designed to last for years, tailored to your needs and preferences. 

The Cost of Adding an ADU in Atlnata: What Shapes the Final Price Tag

What factors impact pricing? Below, our team explains what factors shape the final price of building an ADU in Atlanta, GA. 

But first, know that no two backyards are the same and no two ADUs are identical, so what someone else is charged won't necessarily be a good indicator of what you will pay for your ADU build.

Now with that out of the way, let's take a look:

• The size you choose: More square footage means more materials, more labor, and a longer build. A compact studio is faster and more affordable than a spacious two‑bedroom with a full kitchen.
• Your property's layout: Some lots are ready to build on with minimal prep, while others might need grading or tree removal. Additionally, accessibility for construction equipment can also significantly impact costs.
• Finishes and fixtures: Durable, mid-range materials keep costs lower, while high-end selections, such as custom cabinets or designer tile, add to the investment. Many homeowners mix standard finishes with a few special touches to stay within their budget.
• Permits and fees: Atlanta requires permits and inspections, which come with their own associated costs. SmartSpaces ADUs guides you through this process, ensuring there are no unexpected hurdles.

Practical Ways to Keep Costs Down

At SmartSpaces ADUs, we understand that everyone works within a budget and that most people want to save costs wherever possible. 

If you're thinking the average cost of an ADU in 2025 is a little out of your price range, there are a few practical ways to keep the cost to build an ADU in Atlanta down so that you can achieve your dream of owning an ADU: 

• Work with a cost-per-square-foot model: At SmartSpaces ADUs, we utilize this model, allowing you to see how each design choice impacts your budget before construction begins, helping you stay within your financial means.
• Decide on essentials first: Think about how the space will be used day to day. Once you have an idea of this, you can focus your budget on the features that best serve those needs, avoiding unnecessary expenditure.
• Plan for upgrades over time: Not everything has to be finalized at the outset. Some finishes can be swapped out later without major construction. Many homeowners choose to start with reliable, affordable materials and add luxury elements to their ADUs when the time feels right.

Turning Ideas Into a SmartBuild with Smart Spaces ADus

If you have a few ideas about the type of ADU you want to build and want to nail down the costs, why not talk to us at SmartSpaces ADUs? We can provide you with Atlanta ADU cost comparisons, and you can trust that we provide affordable ADU pricing. So contact us here and let our team help you create an ADU you'll love that meets your current lifestyle needs.