Whether you call it a backyard cottage, in-law suite, or guest house, Accessory Dwelling Units (ADUs) are changing the way families live in the Atlanta area. These small homes—typically 400 to 1,200 square feet—offer flexible, affordable, and creative solutions to meet today’s housing challenges.

What is An ADU (Accessory Dwelling Unit)?

An ADU is a secondary housing unit built on the same lot as a primary home. It can take several forms:

  • A detached structure in your backyard
  • An attached addition connected by a breezeway or porch
  • A converted basement or garage space

Why Build an ADU?

Homeowners across metro Atlanta and North Georgia are turning to ADUs for many reasons:

  • Keep aging parents close while maintaining privacy and independence
  • Provide space for adult children who are priced out of the housing market
  • Expand your living space without sacrificing your low mortgage rate
  • Earn rental income by adding a self-contained unit to your property

Are ADU’s Allowed in Atlanta?

Yes—in most cases! A growing number of cities and counties in metro Atlanta and North Georgia allow ADUs. Many have updated their zoning rules to support more flexible housing options like backyard cottages.

That said, the specific rules vary by location. Some areas allow ADUs “by right” if you meet requirements such as setbacks, lot size, and utility access. Others may require a special use permit or place restrictions on size, height, or use (like short-term rentals).

That’s where CottageSmith comes in. We’ve studied local zoning codes across the region and can help you:

  • Determine if your property qualifies for an ADU
  • Understand what size and type of ADU is allowed
  • Navigate any design or location restrictions
  • Handle the permitting process from start to finish

Our Two-Step Process to Get You Started

1. Free 15-Minute ADU Consultation

This quick phone call is where we:

  • Introduce our team and how we work
  • Learn about your goals and timeline
  • Answer your initial questions about zoning, design, or pricing
  • Discuss starting price ranges and what to expect

If there’s a strong fit, we’ll schedule the next step.

2. On-Site ADU Feasibility Assessment

This in-person property visit includes:

  • Walking the site together to identify ideal build areas
  • Taking utility and access measurements
  • Evaluating any necessary grading or land prep
  • Discussing layout options and next steps
  • Delivering a more accurate and tailored cost estimate
  • By the end of this step, you’ll know what’s possible, how much it may cost, and how to move forward with confidence.

How Much Does an ADU Cost?

Most CottageSmith clients invest between $90,000 (studio) and $250,000 (2 bedroom) for a fully completed ADU. This includes everything from foundation and utility hookups to interior finishes and final walk-throughs.

Compared to assisted living, a home addition, or moving to a larger home, an ADU can be a more cost-effective, long-term solution.

We’ll walk you through:

  • Typical cost ranges
  • Upgrade options
  • Financing strategies to help you get started

Why CottageSmith?

We’re a Georgia-based, design-build firm that focuses exclusively on ADUs. We don’t just build—we guide you through the entire journey.

  • We handle local permitting and zoning challenges
  • We design beautiful, functional homes tailored to your lot and goals
  • We manage construction from start to finish, so you don’t have to juggle multiple vendors
  • We focus on long-lasting craftsmanship and thoughtful design

Ready To Get Started?

It all starts with a free 15-minute consultation. Let’s talk about your vision, your property, and how we can bring your ADU to life.

👉 Book a consultation now or visit mycottagesmith.com to learn more.