Home Additions - Cumming, GA

Exterior of a two-car garage addition in Marietta with carriage-style doors, a dark stone veneer base, green lap siding, gabled dormers and a cupola above a wide concrete driveway

2-car garage home addition in Marietta, GA

Home Additions in Cumming

Expand Your Living Space, Beautifully, Seamlessly, and Built to Last

At Plantation Renovation, we design and build high-quality home additions in Cumming and surrounding areas that blend seamlessly with your existing home and elevate how you live. Whether you need more space for your growing family, want to add modern amenities, or simply crave a more functional layout, our team delivers custom solutions built with care, creativity, and craftsmanship.

David H ⭐⭐⭐⭐⭐
(Google Reviews)

Wade and his team were amazing to work with. Clear and straightforward process and pricing. His project manager Ben was proactive and always there to solve any issues along the way.

Your Vision, Our Expertise

There’s nothing quite like turning unused space into a fully finished, livable extension of your home. From small bump-outs to full second-story additions, we handle it all with a design/build approach that keeps the process smooth, coordinated, and tailored to your needs.

With over 20 years of experience, we know how to expand your space while protecting your investment and your peace of mind. We manage every detail, from design and permitting to structural integration, finishes, and inspections, so your new space feels like it was always meant to be there.

Jacob M ⭐⭐⭐⭐⭐
(Google Reviews)

Wade, Ben and team were great to work with. The project was completed with in the specified time frame and the quality of work was great.

Rear exterior with a second-story sunroom addition featuring arched Palladian windows, a brick and cedar-shake facade and an elevated deck with decorative diagonal lattice railings and a white staircase

Sunroom home addition with special deck railings

Front exterior of a custom-built all-brick home in the Lake Lanier area with multiple front gables, an arched barrel-vaulted entry portico, arched windows and fresh foundation landscaping

Custom designed brick home with arches and gables

Build the Space You’ve Been Dreaming Of

Whether you need room to grow, space to host, or just a better daily flow, a home addition can make it possible, without the stress of moving. We’d love to help you explore your options and see what’s possible.

Custom Home Addition Ideas

We’ve helped homeowners across Cumming and surrounding areas create new spaces that feel like home. Here are some of the most popular additions we design and build:

  • Primary Suite Additions – Spacious bedrooms with luxury bathrooms, walk-in closets, and private access

  • Kitchen or Dining Room Expansions – Bump-outs for more prep space, larger islands, or open-concept living

  • Sunrooms & Four-Season Rooms – Light-filled spaces for relaxing, entertaining, or year-round enjoyment

  • Second-Story Additions – Add full floors or rooms over your garage or home for bedrooms, offices, or flex spaces

  • Attached or Detached Garages – With or without bonus rooms, workshops, or apartment suites above

  • Home Offices or Studios – Private, quiet spaces for remote work or creative pursuits

  • Mudrooms & Laundry Rooms – Practical, organized zones with built-in storage and durable finishes

  • In-Law Suites – Comfortable, self-contained living areas for extended family or guests

If you can imagine it, we can design and build it—on the same quality level as the rest of your home.

Watch a whole-home transformation by Plantation Renovation. Starting from design plans, the video shows the existing house, the addition under construction, and the finished exterior with an expanded front and new stone-and-timber details.

Sarah B ⭐⭐⭐⭐⭐
(Angi Reviews)

We had a great experience with Wade and Plantation Renovation on our covered patio addition. Our Project Manager Carey was wonderful and so great to work with. He paid attention to every little so I didn’t have to. I was confident he would make sure the work was done right. It was a perfect experience from beginning to end.

Tony V W ⭐⭐⭐⭐⭐
(Google Reviews)

We contracted with Plantation for a large (>750 sq ft) remodeling project that involved demolition of part of an existing house, pouring a new foundation, framing, siding, roofing, windows–everything right down to tiles, lighting fixtures and millwork. Both the owner, Wade Bowman and our site manager, Carey Turney, were reliable, easy to communicate with, and impeccably professional at all times. They always responded to our messages within 24 hours. Plantation was relentlessly focused on details without losing sight of the bigger project, working with us to solve all the little difficulties, revisions and problems that inevitably arise during a project of this size and duration. Their billing was fair and transparent and they never hesitated to openly discuss details of costs when they arose and worked with us to find cheaper ways of doing something when necessary. When we think of all the ways a big home renovation project could go wrong, we’re grateful once again we went with Plantation.

Call Today! 678-513-2155

Why Homeowners Choose Us for Home Additions in Cumming and Surrounding Areas

  • Design/Build Model – One team from concept to completion for better communication and efficiency

  • Fully Licensed & Insured – Local professionals with a strong reputation and trusted subcontractors

  • Transparent Budgeting – Detailed estimates and no surprise costs

  • Architectural Harmony – Additions designed to match your home’s style, structure, and finishes

  • 20+ Years of Experience – Proven results across a wide range of addition projects

  • No-Pressure Approach – We guide you with clarity and care, never upselling or overpromising

    How It Works

    Our process makes your home addition simple and stress-free:

    • Consultation – We meet to understand your goals, lifestyle, and existing space

    • Design & Planning – Our team develops a design that’s both beautiful and feasible

    • Permitting & Preparation – We handle all local codes, permits, and prep work

    • Construction – Skilled professionals bring your vision to life, with clean work zones and regular updates

    • Final Walkthrough – We review every detail together to ensure you’re fully satisfied

    Home Addition FAQs

    Do I need permits for a home addition?

    Yes. Home additions require permitting, and we handle that process for you. Pulling the necessary permits is built into our process, along with the prep work, the structural tie-in, and all the intermediate and final inspections. You do not chase paperwork. We take care of it, so you have the peace of mind that your project is being handled properly and legally. The same is true of any remodel that changes structural components, electrical wiring, plumbing, or mechanical systems.

    Will the new addition match the rest of my house?

    Yes. We design each home addition to match the house you already have: the rooflines, the exterior details, and the finishes inside. We go over every detail so that the new space looks like it was part of the house all along, not added on.

    What kinds of home additions do you build?

    A wide range: primary suite additions, kitchen and dining expansions, sunrooms and four-season rooms, second-story additions, attached or detached garages, home offices and studios, mudrooms and laundry rooms, and in-law suites. We build each one to the same quality as the rest of your home. If you are not sure your idea fits, ask us at the initial consultation. We will tell you honestly what can and cannot be done with your space and budget.

    Can you build a second story or an addition over my garage?

    Yes. We build full second-story additions and rooms over an existing garage, for bedrooms, offices, or flex space. This kind of project requires us to evaluate the existing structure and determine what additional support is needed to safely carry the new floor, and we handle that as part of the job. We have a professional structural engineering partner who does the final analysis and provides us with the PE-stamped drawings.

    Do you build in-law suites for aging parents or extended family?

    Yes. In-law suites are one of our most popular additions: a comfortable, self-contained living area, with the privacy and independence a parent, adult child, or guest wants, built to match your home. We have also turned unfinished basements into full in-law apartments, with bedrooms, full bathrooms, laundry, a full kitchen and dining area, and a family room. See our basement finishing options and examples.

    How does the home addition process work?

    Five steps.

    1. We listen. We have to learn your goals and needs for the space. Our initial interviews are geared towards identifying how you plan to use the space and translating that into action items.
    2. Design and planning. We shape a plan that is beautiful, functional, and buildable. Along the way, we show you the budget impact of each choice you make.
    3. Permitting and prep. We handle the building permits and schedule walk-throughs with our trusted crews.
    4. Construction. First priority is protection of the areas that will be adjacent to or affected by the new construction. We go to great lengths to protect the existing space. When work starts, a dedicated project manager is on site every day work is scheduled, the work area is cleaned up daily, and you hear from us as soon as anything changes, not when the invoice arrives.
    5. Final walkthrough. We review every detail together to ensure you are satisfied with the results.

    See our full renovation process.

    Can I stay in my house while the addition is being built?

    Usually, yes. Most additions go up outside the existing walls, so the house stays closed and livable until the day we open the wall to tie the new space in. That connection is the disruptive part, and we plan it late and finish it fast. Second-story additions are the exception: the roof comes off, and we will tell you up front if there is a stretch where staying is not practical. Either way, the work area is walled off, cleaned up daily, and the crew is not in your kitchen.

    Does a home addition add value to my house?

    In most cases, yes, but not dollar for dollar, and anyone who promises otherwise is guessing. What holds value is space that fits the house: a primary suite, a bigger kitchen, a second story that looks like it was always there. What loses value is an addition that looks bolted on or pushes the house well past what the street supports. We will tell you at the consultation which side of that line your idea falls on. Most of our clients build because they want to stay in a house they already love, and the resale number is the bonus, not the reason.

    What areas do you serve?

    We serve Cumming, GA and the surrounding north Atlanta area, including Lake Lanier, Alpharetta, Milton, Roswell, Suwanee, Johns Creek, Dawsonville, Marietta, and nearby communities, about a 45-minute drive of downtown Cumming. Not sure if you are in range? Call and ask and we will tell you.

    How do I get started?

    It starts with an initial consultation. Call us at (678) 513-2155 (Mon to Fri, 8 AM to 5 PM) or request your consultation online. We will sit down, learn what is not working now and what you want it to be, and show you what is possible.

    Proudly Serving Cumming, GA and Surrounding Areas, Including:

    Cumming • Lake Lanier • Alpharetta • Milton • Roswell • Suwanee • Johns Creek • Dawsonville • Marietta • and nearby communities