In-law suite (installed)
In-Law Suite & ADU Builder in Roswell, GA
An in-law suite or accessory dwelling unit gives family a private, self-contained space — a bedroom, full bath, living area and often a kitchenette. In many Roswell homes the most affordable way to create one is by finishing a basement, converting a garage, or building a modest addition.
What We Build Into Your Suite
We start with what makes a suite livable and compliant: a bedroom with proper egress, a full bathroom, a kitchenette, heating and cooling, and a separate or private entrance where it makes sense. Then we design the space around how your family will use it.
- Private bedrooms with egress
- Full bathrooms and accessible showers
- Kitchenettes and wet bars
- Private living and sitting areas
- Separate or private entrances
- Egress windows where required
What an In-Law Suite Costs
| Project | Typical range | Source |
|---|---|---|
| In-law suite (installed) | $40,000 to $125,000 | 2025 Atlanta installed-price averages |
A full kitchenette, a new bathroom, a separate entrance or a ground-up addition moves you toward the top of the range. These are typical installed ranges, not quotes. Financing can be discussed at consultation, see Financing.
In-Law Suites Done in the Right Order
An in-law suite succeeds or fails on the parts nobody sees. The first is code: a legal sleeping room needs proper egress, and a kitchen and bath need permitted plumbing, electrical and ventilation. We confirm what Roswell allows before design, because that shapes everything else.
The second is independence. A good suite has its own heating and cooling zone or a solid plan for comfort, sound separation from the main house, and often a private entrance. The third is accessibility: for aging parents we plan step-free entries, a curbless shower and grab-bar blocking from the start.
Once those are settled, the fun part starts: deciding how the space will be used. A media room wants sound control and dimmable lighting. A guest suite wants a full bathroom and a closet. A gym wants durable flooring and good ventilation. A wet bar wants plumbing planned early so drains flow correctly.
In-Law Suites vs. a Full Addition in Roswell
The most economical in-law suites reuse space you already have — a basement or an attached garage — rather than building new. That keeps the footprint and avoids much of the cost and permitting of a full addition, while still giving family a private, comfortable place to live. These suites work well for aging parents, adult children and long-term guests.
If no existing space fits, we compare a conversion with a modest addition or a detached ADU. Reusing space is usually the more economical path, and larger plans can be phased over time.
How a Project Works
- 1
Discovery & Consultation
We walk the space with you, talk through goals and budget range, and note anything structural, electrical or plumbing that affects scope.
- 2
Design & Scope Development
Layout, selections and a written scope with a price range. Anything that needs a City of Roswell permit is identified here.
- 3
Construction
Permitted work is built and inspected in sequence. You get a schedule and a single point of contact.
- 4
Punch-List & Walkthrough
We walk the finished project together, list anything that needs attention, and close it out.
Permit requirements are set by the City. See the City of Roswell residential building permits page.
In-Law Suite & ADU FAQ
Do I need a permit to build an in-law suite in Roswell?
An in-law suite with a bedroom, bathroom or kitchenette requires a City of Roswell residential building permit, and ADUs have specific zoning rules. We confirm what is allowed on your property during Design & Scope Development.
Can the suite have its own kitchen?
Most suites include a kitchenette with a sink, counter, refrigerator and cooktop. A full kitchen may trigger additional zoning rules for a true ADU, which we check early.
Can you make the suite accessible for aging parents?
Yes. We plan step-free entries, a curbless shower, wider doorways and grab-bar blocking from the start so the suite works safely for years.
How long does it take?
It depends on scope and permitting. You get a schedule as part of your written scope.
Serving Roswell ZIP codes 30328, 30342, 30350 and nearby Dunwoody, Buckhead, Brookhaven.
Ready to plan your in-law suite?
Tell us the room, the budget range and the timing. We will follow up to schedule a consultation.