Arbor Building Group specializes in high-end residential additions for homeowners looking to expand, improve, and better utilize their homes without compromising design or quality.
Adding onto an existing home requires more than construction—it requires careful planning, structural understanding, and the ability to seamlessly integrate new space into an existing structure.
Arbor Building Group specializes in high-end residential additions for homeowners looking to expand, improve, and better utilize their homes without compromising design or quality.
We build:
Home expansions
Second-story additions
Kitchen and living space extensions
Primary suite additions
Garage and guest house additions
Outdoor living additions and enclosed spaces
We are best suited for:
Structural additions requiring planning and integration
Homes needing more functional space
Long-term homeowners investing in their property
Projects typically in the $300K–$1.5M+ range
We focus on substantial additions rather than small-scale or short-duration projects.
Why additions require experience
Unlike new construction, home additions must be designed and built around an existing structure. Matching rooflines, tying into framing, and maintaining architectural continuity require experience and attention to detail.
Our Renovation Process
1. Initial Consultation
Understanding your home, goals, and scope
2. Planning & Preconstruction
Budget alignment, scope development, coordination
3. Construction
Organized execution with ongoing communication
4. Completion
Final walkthrough and project closeout
A well-designed addition doesn’t just add square footage—it changes how a home lives. Whether creating space for a growing family, improving functionality, or modernizing an older layout, additions allow homeowners to stay in the homes they value while adapting them to their needs.
We build home additions throughout Charleston’s historic and coastal communities, including Mount Pleasant, Isle of Palms, James Island, Daniel Island, and surrounding areas.
Melissa S. I highly recommend Arbor Building Group. Steve took an empty barn and converted it into a beautiful, two-story cottage—a place of serenity.