Marshall County, Mississippi requires building permits for structures and inspections during construction under the 2018 International Building Code123. Countywide zoning controls uses, lot sizes, setbacks and building height by district, while incorporated municipalities may have separate rules45. Onsite wastewater approval comes through the Mississippi State Department of Health6.
At a glance
- Building permit
- Required for structures in Marshall County1
- Zoning
- County zoning ordinance administered by the Zoning, Planning & Building Department78
- Septic permits
- Mississippi State Department of Health On-Site Wastewater program69
- RV living
- Not a permanent residence; temporary use up to 6 months needs a special exception10
- Tiny home
- No specific occupancy rule confirmed; the ordinance's dwelling definition requires 800 square feet11
- Owner-builder
- Owner-occupants may obtain their own permit, but licensed trades are required for electrical, plumbing and mechanical work12
- Private well
- Permit rule not confirmed; ask the Marshall County Health Department13
Who to call
Building permits
Marshall County Zoning, Planning & Building Department
Building permits, building inspections, county zoning, land-development standards and parcel zoning questions
545 JM Ash Drive, Holly Springs, MS 38635
Septic permits
Mississippi State Department of Health Division of On-Site Wastewater
Onsite wastewater applications, property visits and septic-system approval for Marshall County
Health department
Marshall County Health Department
Local Mississippi State Department of Health office; state onsite-wastewater inspections are coordinated with the appropriate county health department
225 South Market, Holly Springs, MS 38635
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in Marshall County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Marshall County, Mississippi?
Yes. Marshall County's Building Department issues building permits for structures, enforces the 2018 International Building Code and conducts inspections during construction132. The county page specifically says permits are generally required for storage buildings and are required to enclose an existing covered patio8. Applications come through the Zoning, Planning & Building Department, an appointment is required before plan review, and some developments also need site-plan review1415. The permit holder must schedule required inspections before work is covered or concealed, and changes to reviewed construction documents need county approval before the changed work begins14. Marshall County's current building-permit fees could not be confirmed, so ask the department for the fee and payment requirements for the proposed work.
Who handles Marshall County building permits and inspections?
The Marshall County Zoning, Planning & Building Department handles county building permits, inspections, zoning administration and land-development standards8. Call 662-252-3663, email ezoning@marshallcoms.org or visit 545 JM Ash Drive, Holly Springs, MS 386358. Bring the property owner's name or parcel number when asking how the land is zoned8. An owner-occupant may obtain a permit for work on the owner's property, but licensed Mississippi contractors with current registration numbers must perform electrical, plumbing and mechanical work, and all work must follow county-adopted codes12. Ask which application forms, plans, site-plan review and inspections apply to the project; the county publishes only part of the process, and its certificate-of-occupancy requirement could not be confirmed14.
Does Marshall County, Mississippi have zoning?
Yes. Marshall County's 2025 ordinance establishes countywide zoning districts and an official zoning map, while incorporated municipalities may have separate local rules45. The county zoning chart varies lot size, front, side and rear setbacks, and maximum building height by district161718. Where no dedicated road right-of-way exists, the front-setback measurement starts 25 feet from the road centerline16. Do not assume agricultural acreage allows every residential use: give the Zoning, Planning & Building Department the owner's name or parcel number and confirm the mapped district819. Manufactured homes are permitted residential uses in at least some districts, but the parcel's zoning, wastewater approval, permits and inspections still control20. Maximum lot coverage is 25% in the A, A-R, R-E and R-1 districts and 35% in R-221. The zoning ordinance defines a dwelling as having at least 800 square feet of heated area, and separately requires a dwelling unit to have at least 300 square feet of habitable living space11. Marshall County's reviewed rules do not include a specific tiny-home occupancy rule, so ask how the exact unit will be classified.
How do septic permits work in Marshall County?
The Mississippi State Department of Health On-Site Wastewater program handles onsite wastewater in Marshall County, with local inspections coordinated through the appropriate county health department622. Apply through the MSDH wastewater portal; the program requires the application, payment and necessary documents before scheduling a property visit9. For help, call 855-220-0192 or email wastewater@msdh.ms.gov; the Marshall County Health Department is at 225 South Market in Holly Springs and lists 662-252-4621913. Only 4.2% of county soils are rated without severe limits for a conventional septic drain field, so make wastewater feasibility a purchase contingency when possible23. The certified installer must notify the Department at least 24 hours before construction and schedule an inspection, and must not cover the system until it is authorized after inspection24. Where centralized sewer is unavailable, Marshall County requires at least 1.5 acres for each structure needing wastewater treatment, along with an approved onsite facility25.
Can you live in an RV or tiny home on land in Marshall County?
Marshall County does not allow an RV as a permanent residence: travel trailers and RVs must be parked at the back of a residence and appropriately tagged10. Temporary occupancy requires a special exception, is limited to 6 months, and is available only while building a home or for a verified medical or financial hardship; an approved septic system must be on the property for hookup10. Ask the Zoning, Planning & Building Department about the parcel, duration and utility connections before placing an RV8. Marshall County's reviewed rules do not establish a specific tiny-home occupancy category, and a tiny home may fall short of the ordinance's 800-square-foot dwelling definition, so ask how the exact unit will be classified118. A tiny home still needs a parcel-specific zoning and building review because the county regulates uses, setbacks, lot sizes and building height by district19161817. A pre-manufactured storage building or shed cannot be used as a residence because it does not meet the county's adopted residential building-code requirements8. Manufactured homes are allowed in at least some residential districts, but applicants must confirm the specific property's zoning and satisfy applicable permits, wastewater approval and inspections20.
Building a home in Marshall County: the steps, in order
- Give the Zoning, Planning & Building Department the owner's name or parcel number; confirm the mapped district, proposed use, lot size, setbacks, height limit and required site plan819181617.
- Confirm wastewater feasibility early: land without centralized sewer generally needs at least 1.5 acres for each structure requiring treatment18.
- Apply to the Mississippi State Department of Health for onsite wastewater review when the parcel will use septic69.
- Make the required plan-review appointment and submit county permit forms; use licensed trades even when acting as an owner-builder1412.
- Obtain County Road Manager approval for a driveway and culvert on a county road, or an MDOT permit for access to a state highway2627.
- Schedule inspections before concealing work and obtain approval for plan changes before building them214.
- Ask what final drainage, inspection or occupancy documentation applies; drainage approval is required for occupancy, but a complete certificate-of-occupancy rule could not be confirmed26.
What should you check before buying land in Marshall County?
Check zoning, sewage, access and flood exposure before treating a tract as buildable. The Zoning, Planning & Building Department can look up the mapped district from the owner's name or parcel number819. Only 4.2% of Marshall County soils are rated without severe limits for a conventional septic drain field, and land without centralized sewer generally needs at least 1.5 acres per structure requiring wastewater treatment2318. Structures in the Floodplain Overlay District remain subject to their base zoning and must comply with the county floodplain ordinance and applicable FEMA maps28. County-road driveways and culverts need County Road Manager approval, while access to a state highway needs an MDOT permit2627. We could not confirm the private-well permit rule, so ask the Health Department what applies to the proposed well. About 71.3% of the county is wooded, so inspect the actual tract for clearing and drainage costs29. The typical effective property-tax rate is about 0.7%, with a median annual bill near $1,2863031.
Watch-outs
- Marshall County bars permanent RV residence; temporary RV occupancy needs a special exception, lasts up to 6 months and is limited to building a home or a verified hardship10.
- Do not assume a shed can become a cabin: Marshall County says pre-manufactured storage buildings do not meet its residential building-code requirements8.
- Conventional septic suitability is a major parcel risk because only 4.2% of county soils are rated without severe drain-field limitations23.
- A county-road driveway needs County Road Manager approval and an approved culvert before construction26.
- The zoning ordinance defines a dwelling as having at least 800 square feet of heated area, so a small tiny home may not qualify as a dwelling; confirm with the Zoning, Planning & Building Department118.
Sources
- Marshall County - Zoning, Planning & Building Department (2026 county census)
- Zoning, Planning, & Building Department, quoted and re-checked
- Zoning, Planning, & Building Department, quoted and re-checked
- Zoning, Planning, & Building Department, quoted and re-checked
- Zoning, Planning, & Building Department, quoted and re-checked
- On-Site Wastewater - Mississippi State Department of Health, quoted and re-checked
- Zoning, Planning, & Building Department, quoted and re-checked
- Marshall County Zoning, Planning & Building Department (marshall-county.com)
- Mississippi State Department of Health Division of On-Site Wastewater (apps.msdh.ms.gov)
- Marshall County Zoning Ordinance, quoted and re-checked
- Marshall County Zoning Ordinance, quoted and re-checked
- Zoning, Planning, & Building Department, quoted and re-checked
- Marshall County Health Department (msdh.ms.gov)
- Zoning, Planning, & Building Department, quoted and re-checked
- Marshall County Development Ordinances Adopted and Compiled 12/15/2025, quoted and re-checked
- Marshall County Development Ordinances Adopted and Compiled 12-15-2025, quoted and re-checked
- Marshall County Development Ordinances Adopted and Compiled 12-15-2025, quoted and re-checked
- Marshall County Development Ordinances Adopted and Compiled 12-15-2025, quoted and re-checked
- Marshall County Development Ordinances Adopted and Compiled 12-15-2025, quoted and re-checked
- Zoning, Planning, & Building Department, quoted and re-checked
- Marshall County Zoning Ordinance, quoted and re-checked
- Mississippi State Department of Health Current Regulations: On-site Wastewater (Mississippi statewide rule), quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- msdh.ms.gov, quoted and re-checked
- marshall-county.com, quoted and re-checked
- Marshall County Development Ordinances Adopted and Compiled 12-15-2025, quoted and re-checked
- Mississippi Access Management Guide (Mississippi statewide rule), quoted and re-checked
- Marshall County Development Ordinances Adopted and Compiled 12/15/2025, quoted and re-checked
- Wooded share of land: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 9, 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.