Intelligence Tool
Beyond the purchase price: insurance, flood zones, HOA, property taxes, maintenance, and rental income — the whole number, community by community.
A lender quotes the mortgage. Owning on a barrier island involves more: flood insurance that varies block by block, community fees that range from modest to club-level, a property-tax system that treats a second home very differently from a primary residence, and — in the right communities — rental income that offsets a meaningful share of the carry.
Every figure on this page is computed from recorded MLS closed sales (Hilton Head Area Association of REALTORS®) — data as of July 2026, refreshed automatically as the market moves.
Estimates for planning, not quotes. Insurance and maintenance are percentage-based estimates; flood, HOA, tax, and rental baselines are community-specific and reviewed against recorded data.
The 4% / 6% Question
A large share of Lowcountry luxury purchases are second homes or investment properties. South Carolina taxes them differently — understanding the difference is central to the true cost of ownership.
Tax information is general guidance, not tax advice. Consult a qualified tax professional for your situation — COAST can connect you with Lowcountry CPAs who specialize in real estate.
Methodology
The mortgage line is standard amortization over your chosen term and rate. Property tax applies the community’s effective primary-residence rate, adjusted by South Carolina’s assessment ratios: primary residences are assessed at 4%, second homes and investment properties at 6% — which is why the same house costs roughly 1.5× more in property tax when it isn’t your legal residence.
Homeowners insurance and maintenance are estimated as annual percentages of the purchase price; utilities follow a price-band schedule. Flood insurance, HOA dues, rental permissions, and typical gross rental yields are community-specific baselines maintained against recorded market data and reviewed by the COAST team.
Every figure is an estimate for planning, not a quote. Actual premiums depend on elevation certificates, construction, and underwriting; actual regime fees and rental performance vary property by property.
Questions
This calculator provides estimates for informational purposes only and does not constitute financial, tax, or real estate advice. Actual costs vary with property specifics, lender requirements, insurance underwriting, and community policies. Flood-insurance figures are approximations; actual premiums depend on elevation certificates, construction type, and FEMA zone determinations. Rental-income projections are community averages and do not guarantee returns. Consult qualified professionals before making purchase decisions. COAST brokered by eXp Realty, LLC. Equal Housing Opportunity.
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These are community-level estimates. A COAST agent can run the real numbers for a specific property — current insurance quotes, regime fees, tax history, and realistic rental projections — no obligation.
COAST Intelligence
Cost, match, readiness, momentum, the map, street rankings, private access — every tool computed from the same recorded-sale dataset for Hilton Head Island, SC.
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