Atlanta's Garage ADU Builders: Turn Extra Space Into Storage, Living Space, or Rental Income
A garage ADU turns unused space above or beside your garage into something more: extra storage, a home office, or a private rental unit. Cottage Smith designs and builds custom garage ADUs across metro Atlanta, matched to your home and built to code. Ready to see what fits your garage? Schedule a free consultation and let's get started.
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What is a Garage ADU?
A garage ADU, or accessory dwelling unit, is living space built above, beside, or within your existing garage, alongside or instead of standard vehicle storage. It can be a small studio, a home office, or a full rental unit with its own entrance.
Unlike a detached ADU, it uses your garage's existing footprint, which often means a simpler permitting and construction process. We design every garage ADU to match your home and meet your county's requirements.
Why Homeowners Choose Cottage Smith as Their Custom Garage Builder
A garage ADU opens up real options for your property. As your custom garage builder, we help you make the most of them.
Storage and Living Space
A garage ADU gives you parking, storage, or living space, or all three at once, without adding a new building to your lot.
Real Living Space Above Your Garage
Add a loft, home office, or full studio apartment on top of your garage. Rent it out, or keep it for yourself.
Added Value Without a New Foundation
Because a garage ADU uses your garage’s existing footprint, it often permits faster and skips the cost of a new foundation.
Custom Garages: What to Expect When You Build
Every garage ADU project follows the same four stages. Here’s how each one works when you’re converting an existing structure.
01. Consultation
We look at your existing garage: its size, condition, and what can be reused. We also check which utilities are nearby.
02. Design
Your floor plan works within the garage’s existing footprint and roofline. We design the interior to feel like a real living space, not a converted storage area.
03. Permitting
Garage conversions are often reviewed differently than new construction since the frame is already there. We handle the permitting process and confirm local requirements for turning a garage into livable space.
04. Construction
The shell is already built, so construction often moves faster than starting from scratch. We focus on insulation, utilities, and finishes.
05. Final Walkthrough
We look over the converted space together. We test insulation, climate control, and every outlet along the way. We finish any final touch-ups for your new living area before we deliver your keys.
Custom Garages Resources + Insights
What Should You Use Your ADU For?
A Q&A guide for ADU uses: rental income, in-law suite, home office, or guest space in Atlanta.
Read Post
Building an ADU: What to Expect
A step-by-step look at the ADU process, from consultation and design through permitting and final walkthrough.
Read Post
Key Considerations When Hiring an ADU Builder
What to look for in an ADU builder: experience, services, customization, reviews, and financing support.
Read PostCustom Garages FAQs
Explore answers to frequently asked questions about the ADU process, design options, and project timelines to help you make informed decisions.
Can a garage ADU include more than just parking?
Absolutely. A custom garage can hold your cars and still do a lot more. Add a workspace for projects, a loft for storage or a home gym, or an ADU for rental income or guests above it. It’s your space to design, not just where you park. Schedule a free consultation and let’s talk about what you want your garage to do.
Does a custom garage increase my home's value?
It can. A well-built garage ADU adds functional square footage and curb appeal, both of which homebuyers and appraisers notice. Custom garages can be designed to match your home, or stand out and make a statement. It’s a highly visible improvement that works for you now and can pay off later.
Is a garage ADU the same as a detached ADU?
Not quite. A detached ADU is a separate, stand alone building on your lot. A garage ADU is built above, beside, or within your existing garage, so it uses space you already have. Both can include a full living space, but a garage ADU usually costs less and permits faster since there’s no new foundation to pour. Not sure which fits your property? Compare CottageSmith’s ADU services or schedule a free consultation and we’ll walk you through it.
What should I look for in a custom garage builder in Atlanta?
Look for a builder with experience in permitting across the metro’s counties, not just Fulton. Do they have a track record of finished projects you can see? Do they design for your needs instead of using a one-size-fits-all layout? What do people’s reviews say? A good garage builder handles the permits, timeline, and details so you’re not left guessing at any point.