Add Living Space
for Family, Guests,
or Whatever You Need.
In-law suites, garage apartments, detached backyard units, and backyard cottages — Liberty Services Group is a licensed Charleston contractor that walks through your property, your goals, and your realistic options. No guesswork. No pressure.
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(843) 766-7777One Point of Contact.
Every Trade Managed by Liberty.
An ADU is not a single-trade job. A complete build — from site prep to a finished, livable unit — involves general contracting, framing, roofing, HVAC, plumbing, and finish work. Liberty manages the project and coordinates specialty subcontractors where needed, which keeps the project accountable and communication clear.
Liberty Services Group serves as your main contractor and coordinates the project's licensed trades, including specialty subcontractors where needed. The person who scopes the project is the person accountable for the outcome. Every job is photo-documented and delivered with a written record.
Accessory Dwelling Unit Types We Build
Every property is different. Eligibility and feasibility depend on your specific parcel, jurisdiction, HOA, deed restrictions, and project design. The first step is a site review — not a price quote.
In-Law Suites
A private suite attached to or inside your existing home — designed for an aging parent, family member, or live-in caregiver. Work may involve converting existing square footage, building an addition, or finishing an unfinished space. HVAC, plumbing, and accessibility requirements all factor into scope.
Garage Apartments & Conversions
Converting an attached or detached garage into livable space is one of the most common ADU paths. The structure already exists — work focuses on utilities, insulation, framing, HVAC, and bringing the space to habitable code standard. A garage apartment may add a second story above an existing detached garage.
Detached Backyard Units
A standalone structure built on an unused portion of your lot — designed as a guest house, family suite, or independent living unit. Requires new utility connections and must meet local setback, lot-coverage, and size requirements for your jurisdiction.
Backyard Cottages & Guest Houses
A smaller detached unit — sometimes called a backyard cottage or guest house — designed for periodic use by family or guests. Scope and cost vary widely based on size, utility connections required, and the finish level you choose.
How the ADU Process Works
Request Your Property Review
Submit the form or call directly. We schedule a walkthrough of your property and have an open conversation about what you want to accomplish. No commitment required.
Honest Site Assessment
We walk the lot with you and give you an honest read on which project types appear feasible, what questions need answers (zoning, permits, HOA restrictions), and what the likely scope involves.
Written Scope & Proposal
If you want to move forward, we develop a detailed written scope and proposal — no vague estimates. Every line of work is described in writing before you commit.
Licensed Build
Liberty manages the project across all trades and coordinates qualified specialty subcontractors where needed. You have one main contractor and point of contact throughout. Every phase is photo-documented and you receive a written project record at completion.
ADU Projects in Charleston, Berkeley & Dorchester Counties
Liberty Services Group serves the Charleston Tri-County area and the South Carolina Lowcountry — including Charleston, North Charleston, Mount Pleasant, Summerville, West Ashley, James Island, Johns Island, and surrounding communities.
Zoning and permitting rules vary by jurisdiction within the Tri-County area. What's allowed in one city or county zone may not be allowed in another. We surface those questions during the Property and Project Review — before you commit a budget.
ADU Questions — Charleston Tri-County
Plan Your ADU. Protect Your Investment.
One call. Trades coordinated by Liberty. One point of contact.
SC GC License G102646 · SC Mechanical License M112990 · Charleston, SC