S.C. Supreme Court Locks In a 3-Person Cap That Hits STR Hosts Directly
The South Carolina Supreme Court has upheld a local zoning ordinance limiting the number of unrelated individuals who may occupy a single-family home to three. The ruling, reported May 25, 2026, affirms that occupancy in South Carolina residential properties is not governed by a statewide standard but by local zoning ordinances, meaning the cap is legally enforceable at the municipal level. For short-term rental operators in Columbia, SC, who may routinely list properties for groups of four, six, or more unrelated guests, this decision creates a direct and immediate compliance risk.
Columbia is already one of South Carolina's most actively regulated STR markets, operating under two ordinances passed within the last 12 months. The Supreme Court's ruling adds a third layer of legal exposure that no permit, business license, or tax registration can shield a host from if their listing advertises occupancy above the three-person threshold for unrelated guests.
The Numbers
Every material data point governing Columbia STR operations, including the new occupancy ruling, is consolidated below.
| Data Point | Value |
|---|---|
| Max unrelated occupants (S.C. Supreme Court ruling) | 3 |
| STR Permit fee - owner-occupied | $100/year |
| STR Permit fee - non-owner-occupied | $250/year |
| Application fee | $50 |
| Zoning review fee | $10 |
| Minimum fine per violation | $500 |
| Maximum fine per violation | $500 |
| State accommodations tax rate | 5% |
| Local tax rate | 5% |
| Combined lodging tax rate | 10% |
| Local contact/representative radius | 45 miles |
| Minimum stay requirement | 1 night |
| Moratorium period (residential new permits) | June 2025 - June 2026 (365 days) |
| Governing ordinances | Ord. 2025-107; Ord. 2026-013 |
| Permit status (as of May 2026) | Accepting |
| Enforcement level | Medium |
| Permit transferable | No |
| Inspection required | Yes |
| Neighbor notification required | Yes |
Regulatory Context: Columbia's Full STR Rulebook
Columbia operates one of the more structured STR frameworks in South Carolina. Hosts must hold two separate credentials: an STR Permit issued by the Code Enforcement Division and a Business License. The annual STR Permit costs $100 for owner-occupied properties and $250 for non-owner-occupied properties, on top of a $50 application fee and a $10 zoning review fee.
Under Ord. 2025-107, STRs are permitted by right in all Mixed-Use, Activity Center/Corridor, Commercial, and Employment Campus zoning districts. In residential zoning districts, the ordinance originally required that the parcel front a street with four through lanes classified as a Major Arterial, Minor Arterial, or Collector under the City's Comprehensive Plan. That restriction was partially lifted by Ord. 2026-013, approved March 3, 2026, which exempts owner-occupied dwellings in residential zones from the four-lane street requirement, making it meaningfully easier for homeowners to rent their primary residence.
A 365-day moratorium on new residential STR permits ran from June 2025 through June 2026. That moratorium has now expired, and the permit window is currently open. Permits are non-transferable, meaning a property sale does not carry the permit to the new owner. An inspection is required before a permit is issued, and neighbor notification is mandatory as part of the application process.
On the tax side, Columbia hosts owe a combined 10% lodging tax, split evenly between the state accommodations tax at 5% and a local tax at 5%. Registration and remittance are handled through the South Carolina Department of Revenue at dor.sc.gov/tax/accommodations. The city's enforcement posture is rated medium, with a flat $500 fine per violation.
What Changed and Why
The S.C. Supreme Court's ruling, issued in May 2026, did not create a new law. It validated an existing local zoning ordinance that caps unrelated occupants in a single-family home at three people. The case arose in the context of preventing student rooming houses near university campuses, but the court's reasoning rests on the broad authority of municipalities to regulate residential occupancy through zoning. Because the ruling affirms local zoning power rather than carving out a narrow exception, it applies wherever a South Carolina municipality has enacted a similar ordinance.
For STR operators, the practical trigger is straightforward: a listing that advertises capacity for four or more unrelated adults in a single-family residential zone may now be in direct conflict with a legally upheld local ordinance. Enforcement does not require a new complaint or a new law. Code enforcement officers can cite the existing ordinance, now backed by Supreme Court authority, against any property where occupancy records, listing descriptions, or guest logs show more than three unrelated individuals.
Columbia's own regulatory evolution, including the passage of two ordinances in under 12 months and a year-long permit moratorium, signals that the city is actively tightening its STR framework. The Supreme Court ruling lands in that environment and gives local enforcement additional legal footing.
What Operators Must Do Now
- Audit your listing's advertised occupancy immediately. If your property is in a residential zoning district and your listing shows capacity for more than 3 unrelated guests, update it now. The $500-per-violation fine structure means a single complaint-driven inspection could cost you the equivalent of two to five years of permit fees.
- Apply for or renew your Columbia STR Permit at planninganddevelopment.columbiasc.gov/str/. The 365-day moratorium on residential permits ended in June 2026. The permit window is open. Owner-occupied properties pay $100/year plus the $50 application fee and $10 zoning fee. Non-owner-occupied properties pay $250/year plus the same fees. Permits are non-transferable and require a physical inspection before issuance.
- Obtain a Columbia Business License in addition to your STR Permit. Operating without both credentials is a violation. The STR Permit alone is not sufficient under the city's dual-credential requirement established by Ord. 2025-107.
- Register for and remit the 10% combined lodging tax. Register through the South Carolina Department of Revenue at dor.sc.gov/tax/accommodations. The state portion is 5% and the local portion is 5%. Failure to collect and remit is a separate enforcement exposure from the zoning and permit violations.
- Confirm your local contact representative is within 45 miles of the property. The city requires that the owner or a designated responsible representative maintain a residence or business office within 45 miles of the STR. Remote-only management arrangements do not satisfy this requirement.
- Complete neighbor notification before operating. Neighbor notification is a mandatory step in the Columbia permit process. If you skipped this step or are applying for the first time after the moratorium lifted, do not begin hosting until notification is documented and the permit is in hand.
Bottom Line
The cost of full compliance in Columbia runs between $160 and $310 per year in permit and licensing fees, depending on owner-occupancy status, plus the 10% lodging tax on every booking. The cost of non-compliance is a $500 fine per violation, potential permit denial, and now, following the S.C. Supreme Court ruling, the added risk of a zoning enforcement action that carries the full weight of a state supreme court precedent. A host running a four-guest listing in a residential zone without a permit is simultaneously exposed to the $500 code enforcement fine, back taxes with penalties, and a zoning violation that local officials can now pursue with renewed legal confidence. Getting compliant costs less than a single fine. Staying non-compliant after this ruling is a documented, court-validated risk.
For the complete Columbia compliance guide including tax calculator, checklist, and daily monitoring, see Columbia, SC STR Regulations.