Building permits, zoning and septic rules in Lowndes County, Mississippi

At a glance

Building permit

Required for construction; issued by Lowndes County Building Inspection¹²

Zoning

No countywide zoning ordinance or planning/zoning department³

Septic permit

Mississippi State Dept. of Health, Division of On-Site Wastewater (not the county)⁴

Septic soil suitability

Only about 3.3% of county soils rate free of severe limits for a conventional drain field⁵

Owner-builder exemption

Yes, for your own residence, under state law⁶⁷

Well permit

Only required for wells with a surface casing 6 inches or wider in diameter⁸

Mobile/manufactured home

Needs a mobile home set-up permit from the county Building Inspection Department²

Who to call

Contact details are copied from each office’s official page and were checked against it on September 25, 2026.

Do you need a building permit in Lowndes County, Mississippi?

Yes: Lowndes County requires a building permit before any construction activity begins, issued by the county's own Building Inspection Department¹. That department's page states plainly that all permits must be obtained prior to the commencement of any construction activities, and that it reviews building plans, issues building permits, and conducts inspections and Certificates of Occupancy for construction². Mississippi law lets counties and municipalities adopt their own uniform building codes and gave them the option to opt out by November 30, 2014; that framework does not by itself prove which path any single county took, but Lowndes County's own permit requirement shows it runs an active local permitting program rather than leaving construction unregulated⁹.

Who is the Lowndes County building department, and how do you reach them?

The Lowndes County Building Inspection Department is at 17 Airline Rd., Columbus, MS 39701, phone 662-329-5860². It reviews building plans, issues building permits, mobile home set-up permits and mobile home mover's permits, miscellaneous electrical, plumbing and mechanical permits, conducts inspections, and issues Certificates of Occupancy². Because Lowndes County participates in the National Flood Insurance Program, this same office also reviews permits for flood plain determination, so plan on a flood-zone check as part of your permit application².

Does Lowndes County have zoning?

Lowndes County has no countywide zoning ordinance and lists no Planning or Zoning department among its county departments; only Building Inspection appears there³. That means the land-use, lot-size and setback rules a zoned county would set through a zoning ordinance are mostly not present at the county level here. It does not remove the building permit and flood plain review that still apply to construction, and it does not tell you what rules, if any, apply inside the city limits of Columbus, which the county's own Road Department distinguishes from the unincorporated county it maintains roads for¹⁰¹.

How do septic permits work in Lowndes County?

Septic permitting in Lowndes County runs through the state, not the county: new individual on-site wastewater systems need a permit and a soil/site evaluation from the Mississippi State Department of Health's Division of On-Site Wastewater⁴. Statewide, that program sets the rules while the appropriate county Department of Health handles local inspection scheduling, and the Lowndes County Health Department at 801 North Lehmberg Road, Columbus, MS 39702, phone 662-328-6091, is that local point of contact¹¹¹². Soils here are a real constraint: only about 3.3% of Lowndes County's soils rate free of severe limits for a conventional drain field, so most sites should expect the state's site evaluation to point toward an engineered or otherwise non-standard system rather than a simple trench field⁵. If a centralized wastewater treatment system is or becomes available to a property, Mississippi generally requires connecting to it and abandoning an onsite system, with up to 36 months allowed to complete that connection¹³.

Can you live in an RV or tiny home on your land in Lowndes County?

No county or applicable state rule was found in this research that directly addresses living in an RV or tiny home on your own land in Lowndes County. The only recreational-vehicle occupancy rules found in Mississippi apply specifically to campgrounds under the jurisdiction of the Pearl River Valley Water Supply District, in a different part of the state, and they do not apply here³. Because Lowndes County has no countywide zoning ordinance, there is no county zoning rule blocking RV or tiny-home occupancy either, but the Building Inspection Department still issues mobile home set-up permits and may have requirements for a structure used as a residence, so call that office before you buy or move one in²³.

Building a home in Lowndes County: the steps, in order

1. Confirm your parcel is in the unincorporated county rather than inside the Columbus city limits, since city rules can differ from the county's¹⁰.
2. Apply for a building permit, and expect a flood plain determination as part of that review, through the Lowndes County Building Inspection Department at 17 Airline Rd., Columbus, MS 39701, before starting any construction²¹.
3. If you plan to supervise construction of your own residence, note that Mississippi exempts an owner acting as their own general contractor on their own residence from the state's residential-builder licensing law⁶⁷.
4. For septic, apply to the Mississippi State Department of Health's Division of On-Site Wastewater for a permit and site evaluation, and coordinate inspection scheduling with the Lowndes County Health Department at 801 North Lehmberg Road, Columbus, MS 39702¹²¹¹.
5. For a private well, note that Mississippi requires a groundwater withdrawal permit only where the well's surface casing is 6 inches or greater in diameter⁸.
6. If you're placing a manufactured or mobile home, get the mobile home set-up permit from Building Inspection as well².
7. If your driveway will connect to a state highway, get a driveway permit from the Mississippi Department of Transportation before building it; check with the Lowndes County Road Department about any additional requirements where a driveway meets a county road¹⁴¹⁰.

What to check before you buy land in Lowndes County

Lowndes County is mostly gentle and heavily wooded: about 95.7% of the land sits at 15% slope or less, but about 59% of it is forested, so clearing may be part of your site work even on buildable ground¹⁵¹⁶. Plan on a state septic site evaluation rather than a simple trench field for most sites, since only about 3.3% of the county's soils rate free of severe limits for a conventional drain field⁵. Farmland here has averaged around $3,174 an acre and a typical home value near $187,517 in recent data¹⁷¹⁸; a typical property tax bill runs about $1,008 a year at an effective rate near 0.6%, and a typical home insurance premium is around $1,668 a year¹⁹²⁰²¹. The county sees roughly 56.1 inches of precipitation a year and severe drought in about 7% of years²²²³. The nearest city of 100,000 or more people is about 55 miles away, and Columbus is the county's own seat and largest city²⁴. Before closing, ask Building Inspection about permits and flood plain status, and the county Health Department about septic suitability²¹².

Watch-outs

• Lowndes County has no countywide zoning ordinance, but that does not remove the building permit and flood plain review the county still requires for construction³¹.
• No county or Lowndes-applicable state rule was found addressing RV or tiny-home living on private land; the only Mississippi RV-campground rules found in this research apply to a different water district elsewhere in the state, not here³.
• Septic soils are tight here: only about 3.3% of the county's soils rate free of severe limits for a conventional drain field, so budget for a state site evaluation and a possible engineered system⁵.

Sources

1. Lowndes County MS - Building Inspection (2026 county census)
2. Lowndes County Building Inspection Department (lowndescountyms.com)
3. Lowndes County MS - Departments (2026 county census)
4. Mississippi State Department of Health - On-Site Wastewater (2026 county census)
5. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
6. Miss. Code Ann. §73-59-15 (2026 county census)
7. Mississippi Senate Journal, March 9, 2022 (Mississippi statewide rule), quoted and re-checked
8. Guidelines for Securing the Services of a Water Well Driller (Mississippi statewide rule), quoted and re-checked
9. Mississippi Uniform Building Codes (Mississippi statewide rule), quoted and re-checked
10. Lowndes County Road Department (lowndescountyms.com)
11. Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
12. Lowndes County Health Department (msdh.ms.gov)
13. Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
14. Mississippi Access Management Guide (Mississippi statewide rule), quoted and re-checked
15. Share of land at 15% slope or less: Bolthole Index county data
16. Wooded share of land: Bolthole Index county data
17. Farmland value per acre (USDA census): Bolthole Index county data
18. Typical home value (Zillow): Bolthole Index county data
19. Median property tax bill: Bolthole Index county data
20. Effective property tax rate: Bolthole Index county data
21. Typical home insurance premium: Bolthole Index county data
22. Annual precipitation: Bolthole Index county data
23. Share of years in severe drought: Bolthole Index county data
24. Distance to the nearest metro area: Bolthole Index county data

Written September 25, 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.