Charleston 4plexes: Buy a Fourplex and House Hack in Charleston, South Carolina
Charleston, South Carolina, combines a small city population — about 159,423 people — with a high home value: a median owner-occupied home value of $600,300 against a median household income of $98,085. That combination makes house hacking here a study in trade-offs, and this guide lays out the numbers before any romance about Rainbow Row takes over.
Charleston by the Numbers
Charleston occupies a peninsula between the Ashley and Cooper rivers, and its Historic District includes Rainbow Row, thirteen pastel Georgian row houses on East Bay Street. The port operates two shipping terminals and ranks as the fourth-largest container seaport on the East Coast, auto manufacturing has arrived with Mercedes and Volvo, and the College of Charleston, The Citadel, and the Medical University of South Carolina anchor the east side of the peninsula.
| Population (Census Vintage 2025, July 1, 2025) | 159,423 |
|---|---|
| State capital | Columbia |
| Median household income (ACS 2024 1-year, B19013) | $98,085 |
| Households earning under $50,000 (ACS 2024 1-year, B19001) | 26.7% |
| Households earning $50,000 to $99,999 (ACS 2024 1-year, B19001) | 25.4% |
| Households earning $100,000 to $199,999 (ACS 2024 1-year, B19001) | 30.9% |
| Households earning $200,000 or more (ACS 2024 1-year, B19001) | 17.0% |
| Median gross rent (ACS 2024 1-year, B25064) | $1,887 per month |
| Median earnings, all workers 16 and older (ACS 2024 1-year, B20017) | $52,088 |
| Median owner-occupied home value (ACS 2024 1-year, B25077) | $600,300 |
Put rent and value together: a year of rent at the median ($1,887 a month) is 3.77% of the median owner-occupied home value ($600,300). Treat that as a rough gauge of the rent-to-price relationship in Charleston, not as income — expenses, vacancies, and taxes all reduce what an owner actually keeps.
Sources: U.S. Census Bureau, American Community Survey 2024 1-year estimates (tables B19013, B19001, B25064, B20017, B25077).
Buying a 4plex in Charleston
Charleston's city figures — median gross rent of $1,887 a month, median owner-occupied home value of $600,300 — warn a buyer that the peninsula's prettiest blocks are rarely the best house hacks. The stronger play is usually a fourplex where port workers, hospital staff, and university employees actually rent: close enough to the jobs, priced for the rents those tenants can pay, and built to hold up in a humid coastal climate.
Test the building at three rent levels and trust the lowest: the seller's claimed rents, the $1,887 city median, and a downshifted case with a vacancy baked in. Charleston deals that only pencil out at the top of that range tend to disappoint once insurance, maintenance, and turnover costs arrive, so let the downshifted case set your ceiling price.
Buyer Help and Loans in Charleston
Lenders treat fourplexes as a specialty, so interview several. Ask which programs from the Loan Types page each lender actually closes for owner-occupied 2-4 unit purchases in South Carolina, and what overlays sit on top — a lender who rarely closes fourplexes may add conditions a specialist would not.
Pre-approval from a lender with fourplex experience comes first; then a same-property comparison of FHA, conventional, and VA if you are eligible. Bring the Loan Types page to that discussion and check each quote against it, including the 5% minimum down on 2-4 unit conventional and HomeReady/Home Possible purchases.
Living in Charleston
The photo looks out from the Battery toward Fort Sumter, the harbor fort that anchors Charleston's history. King Street's commercial thoroughfare runs through the peninsula nearby, and the Spoleto Festival fills the city each year — the kind of cultural draw that keeps a historic city in demand with renters as well as visitors.
House hacking in a historic city rewards restraint. Buy the building whose numbers survive a conservative rent case, live in it long enough to learn its quirks, and maintain it the way the neighborhood expects. Over time, rising rents against a fixed mortgage do the quiet work — no hurry, no stretch, just steady ownership.