Carroll County, Mississippi has no confirmed building-permit process for unincorporated land, although state law directs counties to require permitting as a condition of construction1. We could not confirm a county zoning ordinance, building inspection process or certificate-of-occupancy rule; ask the Carroll County Board of Supervisors before building23. Septic permits go through the Mississippi State Department of Health45.
At a glance
- Building permit
- County process and enforcement are unconfirmed1
- Zoning
- No countywide ordinance confirmed2
- Septic
- State health department permit required45
- RV living
- Private-land occupancy rule unconfirmed2
- Tiny home
- Occupancy and minimum-size rules unconfirmed2
- Owner-builder
- State licensing exemption for work on your own residence6
- Well permit
- Groundwater permit at the state casing-diameter threshold7
Who to call
Also useful
Carroll County Board of Supervisors
Starting point for unincorporated-area building, zoning and land-use questions
PO Box 60, Carrollton, MS 38917
Septic permits
Mississippi State Department of Health Division of On-Site Wastewater
On-site wastewater applications, permits and technical assistance statewide, including Carroll County
570 East Woodrow Wilson Drive, Jackson, MS 39216
Contact details are copied from each office’s official page and were checked against it on September 28, 2026.
Do you need a building permit in Carroll County, Mississippi?
Carroll County's building-permit requirement is not confirmed. Mississippi law directs every county to require permitting as a condition of construction in unincorporated areas, but Carroll County publishes no building office, application or enforcement process1. Mississippi's uniform-code framework also required counties and municipalities to enact uniform building codes unless they opted out before the state deadline, but that statewide rule does not establish Carroll County's current code policy8. The practical first step is to ask the Carroll County Board of Supervisors what approval applies to the specific parcel and project3. An owner building or improving the owner's own residence has a state residential-builder licensing exemption, but that exemption does not remove a separate local permit or inspection requirement6.
Who handles Carroll County building permits and inspections?
Carroll County does not publish a dedicated building department, building inspector or permit portal, so we could not confirm who issues building permits or inspections for unincorporated property1. Start with the Carroll County Board of Supervisors at PO Box 60, Carrollton, MS 38917, or call (662)237-92743. Ask whether the county requires an application, plan review, inspection or certificate of occupancy for the proposed structure, and whether another office administers the process. Rules inside an incorporated municipality are separate: the county's information identifies municipal contacts, but it does not establish the towns' building or zoning requirements2. If the parcel is inside Carrollton, North Carrollton or Vaiden, contact that municipality rather than assuming the answer for unincorporated Carroll County applies2.
Does Carroll County, Mississippi have zoning?
We could not confirm a countywide zoning ordinance for Carroll County, and the county's official office list has no planning or zoning office2. That is not enough to call a parcel unrestricted. Ask the Carroll County Board of Supervisors whether any land-use, subdivision, floodplain, setback or road-access rule applies to the parcel3. We also could not confirm county rules for minimum lot size, minimum dwelling size, accessory dwellings, building height or lot coverage. Incorporated places can have rules separate from the county, and the county information identifies Carrollton, North Carrollton and Vaiden without establishing their zoning requirements2. Confirm municipal jurisdiction before relying on the unincorporated-county answer.
How do septic permits work in Carroll County?
The Mississippi State Department of Health handles individual on-site wastewater systems in Carroll County, and installing a septic system requires a permit45. A permanent sewage-disposal method must be available before a permanent water-meter connection, and a sewer provider has priority when public sewer is available within one mile; MSDH then requires a Letter of Rejection before proceeding with a septic application9. Apply online or contact the Division of On-Site Wastewater at 1-855-220-0192 or [email protected]10. Only about 7.7% of Carroll County soils avoid a severe conventional-drain-field limitation, so arrange the site evaluation early and allow for a system matched to the actual soil11. A certified installer must contact MSDH 24 hours before construction to schedule inspection, while qualifying new systems on a single tract may use the stated two-acre or five-acre final-approval exemption12.
Can you live in an RV or tiny home in Carroll County?
We could not confirm a Carroll County rule allowing or prohibiting full-time RV living, temporary camping or tiny-home occupancy on private land. The unresolved county zoning question also leaves minimum dwelling size and setback rules unconfirmed2. Before placing or occupying an RV, mobile home or tiny home, ask the Carroll County Board of Supervisors whether the parcel is subject to any land-use or occupancy restriction3. Septic rules still matter when a trailer or dwelling has plumbing: MSDH treats a residential application as one serving a place people can live, and installation of an on-site wastewater system requires a permit510. Inside an incorporated town, ask the municipal government because a town's rules can differ from the unincorporated county answer2.
Building a home in Carroll County: steps in order
- Confirm whether the parcel is unincorporated or inside a municipality, because municipal rules are separate2.
- Call the Carroll County Board of Supervisors at (662)237-9274 and ask what building approval, inspection and floodplain review apply to the project31.
- Apply to MSDH for the septic permit before installation; if public sewer lies within one mile, obtain the sewer provider's Letter of Rejection before the septic application proceeds59.
- Have the certified installer coordinate the required advance notice and inspection with MSDH12.
- If a well has surface casing at least 6 inches in diameter, obtain the state groundwater-withdrawal permit, subject to the stated exclusions7.
- If the driveway connects to a state highway, obtain the required state access permit13.
What should you check before buying land in Carroll County?
Confirm jurisdiction first, then get written answers on building approval, zoning, floodplain review, legal access and any subdivision limits from the Carroll County Board of Supervisors312. Test septic feasibility early: only about 7.7% of county soils lack severe limitations for a conventional drain field, and MSDH can refer a constrained site for an engineered design1110. Carroll County is about 79.6% wooded, while about 67.8% of its land is at a slope of 15% or less, so inspect clearing needs, drainage and the actual buildable area rather than judging acreage alone1415. The effective property-tax rate is about 0.7%, and the median annual property-tax bill is about $7021617. A driveway onto a state highway requires an MDOT access permit; county-road access remains unconfirmed13.
Watch-outs
- Carroll County's building-permit process, inspections and certificate-of-occupancy rules remain unconfirmed; ask the Board of Supervisors before construction13.
- Do not assume the absence of a published county zoning office makes a parcel unrestricted; countywide zoning and several dimensional rules could not be confirmed2.
- A permanent water connection depends on an available approved sewage-disposal method, and nearby public sewer can require a provider rejection before MSDH proceeds with septic9.
Sources
- Miss. Code Ann. §19-5-9(11) (2026 county census)
- Carroll County, MS - County Officials (2026 county census)
- Carroll County Board of Supervisors (carrollcountyms.org)
- On-Site Wastewater, quoted and re-checked
- WasteWater Frequently Asked Questions, quoted and re-checked
- Mississippi Senate Journal, March 9, 2022 (Mississippi statewide rule), quoted and re-checked
- Guidelines for Securing the Services of a Water Well Driller (Mississippi statewide rule), quoted and re-checked
- Mississippi Uniform Building Codes (Mississippi statewide rule), quoted and re-checked
- WasteWater Frequently Asked Questions, quoted and re-checked
- Mississippi State Department of Health Division of On-Site Wastewater (msdh.ms.gov)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- Notice of Intent: New Individual On-site Wastewater Disposal System, quoted and re-checked
- Mississippi Access Management Guide (Mississippi statewide rule), quoted and re-checked
- Wooded share of land: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written September 28, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.