Home Additions Built for the Lowcountry
Adding onto your home is one of the biggest decisions you will make as a homeowner. It is also where most contractors disappear, where timelines slip, and where surprise costs appear. Global Finishes does additions differently. We build for Lowcountry families in Savannah, Pooler, Richmond Hill, Bluffton, Hilton Head, and Beaufort, and we operate on Zero Surprises: a written scope, a real timeline, a real number, and no change orders unless something is found behind a wall that nobody could have known about.
Adding square footage to a coastal home is not the same as adding it to an inland tract house. Flood-zone elevations, hurricane-rated framing, salt-air corrosion-resistant fasteners, and raised foundation work all become part of the conversation here. We coordinate the architect, the structural engineer, the city or county permit office, and every trade on site so you have one point of contact from the first site visit to the certificate of occupancy.
Types of Home Additions We Build
Bedroom Additions
Growing families, aging parents moving in, or a home office that finally needs a door. A bedroom addition is one of the most common projects we handle. Typical scope includes new foundation work tied into the existing slab or crawlspace, framing matched to the existing roofline, full insulation, drywall, paint, trim, flooring to match the existing home, and HVAC extension or a dedicated mini-split. We also handle window placement to capture natural light without compromising on hurricane-rated egress requirements.
Bathroom Additions
Adding a full bathroom or a powder room transforms how a home functions. Bathroom additions involve coordinated plumbing rough-in, electrical for ventilation and lighting, waterproofing, tile, fixtures, and finish work. We handle the permits and inspections required by the GA or SC plumbing and electrical codes, and we work with licensed plumbers and electricians on every job. For homes in flood zones near the marsh or the river, we use moisture-tolerant materials and proper vapor barriers.
Kitchen Expansions
Many older homes in Savannah's historic neighborhoods, Beaufort, and Hilton Head were built with kitchens that no longer fit how families cook and gather. A kitchen expansion may mean pushing out an exterior wall, opening into an adjacent dining room, or adding a full bump-out for a breakfast nook. We coordinate the structural work, cabinetry, countertops, plumbing relocations, gas line work, and electrical upgrades needed to bring a kitchen into the current decade.
Family Room & Living Space Bump-Outs
A bump-out is a smaller, focused addition typically between 50 and 200 square feet. They are a great option when you do not need a full room addition but you want more living space, a sunroom, a reading nook, or a wider primary bedroom. Bump-outs are faster, more affordable, and less disruptive than full additions because the foundation work is more limited and the roof tie-in is simpler. For many homeowners they hit the sweet spot between budget and impact.
Second-Story Additions
When your lot is small or your yard is sacred, going up makes more sense than going out. Second-story additions are the most complex projects we handle. They require a structural engineer to evaluate the existing foundation and load paths, a careful framing plan that accounts for hurricane wind loads required by the Georgia and South Carolina coastal building codes, and a sequenced construction plan that protects your home from the weather while the roof is opened up. Done right, a second story can double your living space without expanding your footprint.
Garage-to-Living-Space Conversions
Converting an attached or detached garage into living space is one of the most cost-effective ways to add usable square footage. The shell already exists, the foundation is in place, and utilities are often nearby. The work typically involves insulating walls and the floor slab, installing windows in place of the garage door opening, running HVAC, adding electrical receptacles to code, and finishing the interior to match the rest of the home. Garage conversions are popular for home gyms, home offices, guest suites, and rental units.
In-Law Suites & ADUs
Accessory dwelling units, mother-in-law suites, and guest cottages are growing in demand across the Lowcountry as multi-generational households become more common and short-term rental rules evolve. These projects can be attached to the main home, built as a detached structure on the same lot, or carved out of an existing garage or basement. Local zoning varies significantly between the City of Savannah, unincorporated Chatham County, Beaufort County, and the Town of Bluffton, so the first step is always a zoning review.
Lowcountry-Specific Considerations
Building an addition in coastal Georgia and South Carolina means dealing with conditions that contractors in Atlanta or Charlotte simply do not face. We design and build around them from day one rather than discovering them mid-project.
Flood Zones & Elevation Requirements
Properties in Savannah's downtown, on Tybee Island, along the marshes of Bluffton, and across much of Beaufort County fall into FEMA flood zones with specific elevation requirements. Additions must usually match or exceed the base flood elevation, which can affect foundation type and finished floor height. We pull the flood determination before drawing the plan so the design works with the regulations rather than against them.
Hurricane-Rated Framing
Both Georgia and South Carolina coastal counties enforce wind-load requirements that are stricter than inland code. That means hurricane straps and clips at every truss connection, properly sheathed and nailed roof decks, and impact-rated windows in certain wind-borne debris zones. We build to current code and pull inspections at every stage so the structure passes the first time.
Salt-Air Corrosion-Resistant Fasteners
Standard galvanized fasteners corrode quickly within a few miles of the coast. We specify stainless steel or hot-dipped galvanized fasteners for any framing, joist hangers, and exterior connections on additions within the salt-air zone. It is a small line-item upfront that saves thousands in repair costs ten years out.
Raised Foundation Work
Many Lowcountry homes sit on pier-and-beam or raised slab foundations to handle moisture and flood risk. Tying a new addition into an existing raised foundation requires careful detailing to maintain ventilation, prevent moisture intrusion, and keep the load paths sound. We work with foundation specialists when piers, footings, or block work need to be added.
Our Process: From First Visit to Certificate of Occupancy
Every addition we build follows the same disciplined sequence. The order matters. Skipping steps is how projects go wrong.
- Design consult. We visit your home, walk the site, listen to what you actually want, talk through what is possible, and give you a realistic range before any money changes hands.
- Architectural drawings. We coordinate with a licensed architect or designer to produce a permit-ready set including floor plans, elevations, structural details, and MEP layouts.
- Permit pull. We submit to the appropriate jurisdiction, respond to plan-review comments, and pay the permit fees. You see every invoice.
- Foundation & framing. Excavation, footings, foundation, framing, sheathing, and roof tie-in. Inspected at each milestone.
- MEP rough-in. Plumbing, electrical, and HVAC rough-ins by licensed trades, followed by insulation and rough inspections.
- Drywall, paint & trim. Drywall hung and finished, walls painted, doors and windows trimmed, flooring installed.
- Final walkthrough. We walk every square foot with you, build a punch list, and complete it before requesting final inspection.
- Certificate of occupancy. Final inspection passes and the jurisdiction issues the CO. The space is officially yours to live in.
Typical Timeline
Most additions take between 6 and 16 weeks of active construction once the permit is in hand. Smaller bump-outs and garage conversions land at the shorter end. Second-story additions, in-law suites, and complex kitchen expansions land at the longer end. Design and permitting typically add another 4 to 10 weeks before construction even starts, depending on jurisdiction. We give you a realistic Gantt chart at contract signing and update it weekly during construction so you always know where the project stands.
Permits & Inspections We Handle
Permits are not optional and they are not something a homeowner should chase on their own. We handle the permit application, the plan submission, the plan-review back-and-forth, and the inspection scheduling for every jurisdiction we work in. That includes the City of Savannah, Chatham County, Pooler, Richmond Hill, Bryan County, the Town of Bluffton, Beaufort County, and the Town of Hilton Head Island. We also coordinate with the historic district review boards in downtown Savannah and Beaufort when projects fall inside those overlays.
Honest About What We Do Not Promise
We do not give square-foot prices over the phone because they are almost always wrong. The same 400-square-foot addition can cost very different amounts depending on whether it sits on a slab or piers, whether it needs new MEP service capacity, what finishes you choose, and what the soils look like. We give you a real number after a real site visit and a real conversation about scope. If the budget does not match the dream, we tell you that before you have signed anything.
We are licensed and insured in Georgia and South Carolina, we carry the coverages required to work on your home, and we are upfront about who is doing what on every project. Ready to talk about your addition? Call us at (843) 300-2621 or use the form on our home page to schedule a site visit.