Jefferson Davis County, MS Building Permits & Zoning

Jefferson Davis County, Mississippi does not publish a confirmed residential building-permit process for unincorporated land, so ask the Board of Supervisors what approvals and inspections apply before work begins^1,2. Septic permits come from the Mississippi State Department of Health, and a lot of two acres or more may qualify for an affidavit exemption^3,4.

At a glance

Building permit: County process and enforcement are unconfirmed; ask the Board of Supervisors^1,2
Zoning: Countywide zoning status is unconfirmed⁵
Septic: MSDH permit required for new systems; lots of 2 acres or more may qualify for an affidavit exemption^4,6
RV living: Private-land occupancy rule is unconfirmed⁵
Tiny home: Occupancy and minimum-size rules are unconfirmed⁵
Owner-builder: State licensing exemption applies when its conditions are met; local approvals are not waived⁷
Private well: State withdrawal permit applies at the specified casing-size threshold, subject to exclusions⁸

Who to call

Building permits

Jefferson Davis County Board of Supervisors

First county contact to identify the office responsible for unincorporated-area building, zoning, floodplain and county-road questions

601-792-4336

purchasing@co.jefferson-davis.ms.us

P.O. Box 1317, Prentiss, MS 39474-1317

Septic permits

Jefferson Davis County Health Department

Local health-department contact for coordinating with the state onsite-wastewater program

601-792-5135

1185-A Frontage Road, Prentiss, MS 39474

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 10, 2026.

Do you need a building permit in Jefferson Davis County, Mississippi?

Jefferson Davis County does not publish a confirmed residential building-permit office, application or inspection schedule for unincorporated property, so do not treat the silence as an exemption.

Jefferson Davis County does not publish a confirmed residential building-permit office, application or inspection schedule for unincorporated property, so do not treat the silence as an exemption¹. Mississippi law directs counties to require permitting as a condition of construction in unincorporated areas, but Jefferson Davis County's local administration and enforcement could not be confirmed¹. Mississippi's uniform-code framework says counties and municipalities must enact uniform building codes unless they opted out before the applicable deadline, but it does not establish Jefferson Davis County's present code status⁹. The State Fire Marshal has adopted the state fire-prevention code for specified building categories, not a general county residential code¹⁰. Before ordering plans, grading a site or signing a construction contract, give the Board of Supervisors the parcel location and project description and ask which permit, code, inspection and occupancy requirements apply^1,2.

Who handles Jefferson Davis County building permits and inspections?

No dedicated Jefferson Davis County building department or codes office is confirmed, making the Jefferson Davis County Board of Supervisors the practical first county contact.

No dedicated Jefferson Davis County building department or codes office is confirmed, making the Jefferson Davis County Board of Supervisors the practical first county contact^1,2. The Board lists 601-792-4336 and a mailing address at P.O. Box 1317 in Prentiss². Ask the Board to identify who reviews residential construction in the parcel's jurisdiction, which code applies, what plans are required, when inspections occur and whether an occupancy approval is needed^1,2. Mississippi's owner-builder exemption can remove the state residential-builder licensing requirement when a person undertakes construction or improvement on that person's own residence or acts as the general contractor for that work⁷. The exemption concerns contractor licensing and does not establish an exemption from locally required permits or inspections⁷.

Does Jefferson Davis County, Mississippi have zoning?

Jefferson Davis County's countywide zoning status remains unconfirmed because no authoritative county zoning ordinance, district map or zoning-office page establishes the answer.

Jefferson Davis County's countywide zoning status remains unconfirmed because no authoritative county zoning ordinance, district map or zoning-office page establishes the answer⁵. An unconfirmed zoning status does not mean that unincorporated land is unrestricted⁵. Minimum lot size, minimum dwelling size, setbacks, lot coverage, building height, manufactured-home rules and subdivision procedures also lack confirmed county answers⁵. Ask the Board of Supervisors for a parcel-specific determination and for the text of any ordinance that governs the proposed use^2,5. If the parcel lies inside Prentiss, Bassfield or another incorporated municipality, ask that municipality separately because Mississippi permit requirements vary by location and city rules do not automatically describe unincorporated Jefferson Davis County¹¹. A driveway connecting to a Mississippi state highway requires an MDOT access permit for a new driveway or an alteration to an existing drive¹².

How do septic permits work in Jefferson Davis County?

The Mississippi State Department of Health administers individual onsite wastewater systems in Jefferson Davis County, and a permit is required for installation and for a water-meter application.

The Mississippi State Department of Health administers individual onsite wastewater systems in Jefferson Davis County, and a permit is required for installation and for a water-meter application^3,6. A local Environmentalist performs a soil and site evaluation before the permit is issued⁶. The installer must notify MSDH at least 24 hours before installation so an inspection can be scheduled with the county health department⁴.

A lot or tract of two acres or more is exempt from department approval if all wastewater stays on the tract, no watercourse is affected and the installer files a signed affidavit; the state's Notice of Intent plus exemption option is listed at $100, against $197.50 for Notice of Intent plus final approval^4,13. Fees can change and offline filing may cost more¹³. Wastewater must go to a central sewer or a septic system, and gray water may not be discharged on the ground, ditches or water bodies¹³. A permanent sewer or septic solution must be in place before a permanent water meter can be connected¹⁴.

The Jefferson Davis County Health Department is at 1185-A Frontage Road in Prentiss and lists 601-792-5135^15,16. Only about 25.8% of county soils are rated without severe limitations for a conventional drain field, so make wastewater feasibility an early purchase contingency¹⁷.

Can you live in an RV or tiny home in Jefferson Davis County?

Long-term RV occupancy, temporary camping and tiny-home occupancy on private land in Jefferson Davis County remain unconfirmed.

Long-term RV occupancy, temporary camping and tiny-home occupancy on private land in Jefferson Davis County remain unconfirmed⁵. The same is true for minimum dwelling size, setbacks and accessory-dwelling standards, so the lack of a published county zoning answer is not permission to occupy a unit⁵. Ask the Board of Supervisors to identify the parcel rule and describe whether the unit will be temporary or permanent, whether it has wheels, and how water and wastewater will be handled^2,5. Mississippi's cited campground rules apply only to campgrounds under the Pearl River Valley Water Supply District and do not answer the private-land question in Jefferson Davis County¹⁸. A permanent water meter requires a permanent sewer or septic solution, and septic installation requires an MSDH permit^6,14.

Building a home in Jefferson Davis County: the steps, in order

Ask the Jefferson Davis County Board of Supervisors which building approval, code, inspection, floodplain and occupancy requirements apply to the parcel.

Ask the Jefferson Davis County Board of Supervisors which building approval, code, inspection, floodplain and occupancy requirements apply to the parcel^1,2.

Obtain a parcel-specific zoning answer and confirm setbacks, minimum size, manufactured-home treatment and subdivision limits because the countywide rules remain unconfirmed^2,5.

Apply to MSDH before fixing the house location; the process starts with an application and fee, then a soil and site evaluation, then the permit⁶.

Secure the required wastewater permit and permanent sewage solution before requesting a permanent water meter, having the installer give 24 hours' notice so an inspection can be scheduled through the county health department^4,6,14,16.

If acting as your own builder, document that the project meets the state's owner-builder licensing exemption without assuming it waives local approvals⁷.

Obtain an MDOT access permit before creating or altering a driveway onto a state highway¹².

If a private well has a surface casing diameter of 6 inches or more, obtain the state groundwater-withdrawal permit, subject to exclusions⁸.

What should you check before buying land in Jefferson Davis County?

Start with wastewater feasibility because about 25.8% of Jefferson Davis County soils are rated without severe limitations for a conventional septic drain field.

Start with wastewater feasibility because about 25.8% of Jefferson Davis County soils are rated without severe limitations for a conventional septic drain field¹⁷. The county receives about 60.4 inches of precipitation annually, so inspect drainage, standing-water patterns and the proposed house and septic areas during wet conditions¹⁷. About 79.8% of county land has a slope of 15% or less, while about 75.2% is wooded; verify the actual tract's clearing, drainage and grading needs rather than relying on county averages¹⁷. Farmland value averages about $3,188 per acre, and the typical home value is about $99,263¹⁷. The effective property-tax rate is about 0.8%, with a median annual bill near $728¹⁷. Before closing, confirm legal access, floodplain requirements, land-use rules and every construction approval directly with the Board of Supervisors^1,2,5.

Watch-outs

Jefferson Davis County's building-permit process, inspection schedule and certificate-of-occupancy requirements remain unconfirmed; ask the Board of Supervisors before construction^1,2.
Countywide zoning, setbacks and minimum dwelling size remain unconfirmed, so obtain a parcel-specific answer before buying an RV, tiny home or manufactured home^2,5.
Only about 25.8% of county soils are rated without severe limitations for a conventional septic drain field¹⁷.
A permanent water meter requires a permanent sewage solution, and the MSDH permit must be presented to the water utility to get the meter^6,14.

Sources

18 official pages, each quoted and re-checked · written October 10, 2026

Written October 10, 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.

Off-grid gear

Going off-grid in Jefferson Davis County means bringing your own water and power. The kit we’d start with:

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Compared with neighboring counties

Rule	Jefferson Davis County	Lawrence County	Covington County	Marion County	Simpson County	Walthall County	Smith County
Building permit	Not published	Not published	Not published	Not published	Required	Limited	Not published
County zoning	Not published	Not published	Not published	No	Not published	No	No
Septic permits	MS State Dept. of Health	MS State Dept. of Health	MSDH	MS State Dept. of Health	MS State Dept. of Health	MSDH	MS State Dept. of Health

Answers from the rulebook for Jefferson Davis County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Mississippi rules that apply here

Building permitRequired
Commercial places of Public Assembly subject to the Mississippi Fire Prevention Code.
- Permit/compliance inspections are required for buildings defined in Miss. Code § 45-11-101(a-f), pursuant to Miss. Code § 45-11-105(2).
- The code applies to buildings used for public assembly except where a county or municipality has adopted a fire-prevention code with standards not less stringent than the Mississippi Fire Prevention Code; the local provisions and enforcement mechanism apply instead.
- Permit fees are not less than $400 and include, but are not limited to, each on-site inspection, attorney fees, architect or engineer plan-review fees, and other fees and reasonable and necessary travel expenses.
- The regulation supersedes prior versions of Mississippi Administrative Code Title 19, Part 7, Chapter 7, and became effective January 1, 2025.
permit fee: >= 400 USD (Includes but is not limited to each on-site inspection, attorney fees, architect or engineer plan-review fees, other fees, and reasonable and necessary travel expenses.)
“Permits are required for commercial places of Public Assembly as follows: A. Permit/Compliance inspections are required for all buildings defined in Miss. Code § 45-11-101(a-f) pursuant to Miss. Code § 45-11-105(2).”
Mississippi Administrative Code, Title 19, Part 7, Chapter 7: Mississippi Fire Prevention Code ↗Re-checked Nov 4, 2026
Owner-builder exemptionAvailable (with conditions)
Owner construction or improvement of the owner's own residence in Mississippi, including Jefferson Davis County.
- The exemption is from the Residential Builders and Remodelers chapter, not from locally administered permits or other applicable construction, health, floodplain, or wastewater requirements.
- For owner-supervised construction on property generally, the statute specifies use by the owner and that the work will not be for sale, rent, public use, or public assembly.
- A person under subsection (1)(b) or (c) may not make more than one application for a permit to construct a single residence or construct more than one single residence within one year; more than one creates a rebuttable presumption of intent to sell, lease, rent, or a similar purpose.
single-residence applications or construction: <= 1 residence per year (Applies to persons specified in Section 73-59-15(1)(b) or (c).)
“Any person who undertakes construction or improvement on his own residence, or who acts as his own general contractor [...] on his own residence;”
Mississippi Residential Laws and Rules Revised 2022 ↗Re-checked Nov 13, 2026
One more reviewed finding on this topic
- Available (with conditions) — A person undertaking construction or improvement on the person's own residence or acting as the person's own general contractor for construction or improvement on that residence, for purposes of Mississippi residential builder and remodeler licensing requirements.
  “(1) This chapter shall not apply to: [...] (b) Any person who undertakes construction or improvement on his own residence, or who acts as his own general contractor in the performance of construction or improvement on his own residence;”
  Mississippi Senate Journal, March 9, 2022 ↗Re-checked Sep 11, 2026
Building code adoptedPartial
The Mississippi Fire Prevention Code and State Fire Marshal enforcement for state-owned or state-agency buildings, public-assembly buildings, and buildings at least 75 feet high, subject to local fire-prevention-code exceptions stated in the statute.
- The State Fire Marshal's Office adopted the 2024 editions of the International Fire Code and International Building Code effective July 1, 2024.
- The Mississippi Fire Prevention Code applies to all buildings owned by the State or State Agencies.
- It applies to all buildings utilized for public assembly except in a county or municipality that has adopted a fire-prevention code with standards not less stringent than the Mississippi Fire Prevention Code.
- It applies to buildings whose construction permits were issued after the statutory effective date and that are not less than 75 feet in height, unless the county or municipality has adopted a fire-prevention code with standards not less stringent than the Mississippi Fire Prevention Code.
International Fire Code edition: 2024 edition · International Building Code edition: 2024 edition · effective date: 2024-07-01 · height threshold: >= 75 feet (Local fire-prevention code exception applies where stated.)
“AS OF JULY 1, 2024, THE STATE OF MISSISSIPPI – OFFICE OF THE STATE FIRE MARSHAL HAS ADOPTED THE 2024 ADDITION”
Fire Code Enforcement ↗Re-checked Oct 1, 2026
3 more reviewed findings on this topic
- Partial — State Fire Marshal adoption of the 2024 IFC and IBC in Mississippi.
  “AS OF JULY 1, 2024, THE STATE OF MISSISSIPPI – OFFICE OF THE STATE FIRE MARSHAL HAS ADOPTED THE 2024 ADDITION OF THE INTERNATIONAL FIRE CODE (IFC) AND THE INTERNATIONAL BUILDING CODE (IBC).”
  Fire Code Enforcement ↗Re-checked Sep 26, 2026
- Partial — Mississippi counties and municipalities subject to the statewide uniform-building-code framework.
  “Under Senate Bill 2378 of 2014, all counties and municipalities must enact uniform building codes unless they opt out prior to Nov. 30, 2014. Please complete the following information regarding your county or municipality’s building code policies.”
  Mississippi Uniform Building Codes ↗Re-checked Sep 11, 2026
- Partial — Mississippi counties and municipalities, including residential building-code adoption subject to the statewide uniform-building-code framework.
  “Under Senate Bill 2378 of 2014, all counties and municipalities must enact uniform building codes unless they opt out prior to Nov. 30, 2014.”
  Mississippi Uniform Building Codes ↗Re-checked Oct 1, 2026
InspectionsLimited
Pediatric skilled nursing facilities regulated by the Mississippi State Department of Health.
- Upon completion of construction, the Licensing Agency must inspect and approve the facility before occupancy.
- The state and county health departments may access the job site during regular business hours and conduct construction progress inspections as deemed necessary by the agency.
“Upon completion of construction, an inspection shall be made by the Licensing Agency and approval given prior to occupying the building or any part thereof. The state and county health departments shall have access to the job site during regular business hours and shall conduct construction progress inspections as deemed necessary by the agency.”
Mississippi Administrative Code, facility construction and occupancy rules ↗Re-checked Sep 11, 2026
Certificate of occupancyLimited
Pediatric skilled nursing facilities regulated by the Mississippi State Department of Health at final inspection and close-out.
- At final inspection, the State Agency must receive a Certificate of Occupancy or statement of approval from the local building official permitting occupancy for the facility's intended use.
- If there is no local building authority, approval from the local fire authority having jurisdiction must be provided.
- If the facility is state-owned and subject to the State Bureau of Buildings, Grounds and Real Estate Management, approval of occupancy must be coordinated between the state agencies involved.
“A copy of the Certificate of Occupancy or statement of approval from the local building official permitting occupancy of the facility for its intended use. In the absence of a local building authority, approval of a local fire authority having jurisdiction shall be provided. If the facility is owned by the State of Mississippi and subject to the State Bureau of Buildings Grounds and Real Estate Management, approval of occupancy shall be coordinated between the state agencies involved;”
Mississippi Administrative Code, facility construction and occupancy rules ↗Re-checked Sep 11, 2026
SetbacksSpecified
Individual on-site wastewater disposal systems using aggregate disposal systems in Mississippi.
- The 50-foot measurement is the minimum distance from the water edge for all listed non-gravel soil textural classes and for slopes both less than and more than 8 percent.
- Gravel is marked "NOT APPLICABLE."
- The regulation states that these setbacks apply to all individual on-site wastewater disposal systems except spray-irrigation disposal and overland discharge.
- This is an on-site-wastewater setback, not a statewide zoning setback for the dwelling or other structures.
minimum distance from water edge: 50 feet (Aggregate systems in coarse sand, medium sand, fine sand, loamy sand, sandy loam, light loam, heavy loam, silt loam, sandy clay loam, light clay loam, heavy clay loam, light silty clay loam, heavy silty clay loam, sandy clay, silty clay, and clay; both slope categories shown in Table 1.)
“TABLE 1 - SETBACK REQUIREMENTS FROM SENSITIVE WATER (Aggregate Systems) Minimum Distance from the Water Edge [...] Coarse Sand 50 feet 50 feet”
Mississippi State Department of Health, Part 18, Division of On-Site Wastewater, Subpart 77: On-Site Wastewater Regulations ↗Re-checked Nov 4, 2026
Living in an RVLimited
RVs at a hunting camp where the camp uses the Mississippi Department of Health on-site wastewater application process.
- The camp is treated by MSDH as a residential application.
- Three or more trailers, cabins, or RVs on the property must be applied for as a commercial development.
- For a permanent water meter, state law requires a permanent sewage-disposal solution; it may be a sewer line or septic system. If public sewer is unavailable, the applicant must apply to MSDH for the required paperwork.
- Local jurisdictions have separate land ordinances; this claim does not establish a statewide land-use permission for RV occupancy.
trailers/cabins/RVs triggering commercial-development application: >= 3 units (On the hunting-camp property.)
“Yes. This is considered a residential application with us. If there will be three (3) or more trailers/cabins/RVs on the property, this will need to be applied for as a commercial development.”
WasteWater ↗Re-checked Nov 4, 2026
Tiny homesLimited
A tiny house or home intended for use as a residential dwelling that is within the State Fire Marshal's factory-built-home regulation.
- The defined tiny house or home ranges from 80 to less than 400 square feet and may or may not be constructed on a chassis with or without axles or wheels.
- If intended as a residential dwelling, it is treated as a modular home for design and construction requirements and must comply with the most current residential building code adopted by the Mississippi Building Codes Council.
- When designed for permanent installation at its final destination, it must be installed on an approved foundation complying with the manufacturer's installation guidelines concerning manufacturing-facility and retail-entity licensure and occupant-safety installation standards.
- The amended regulation superseded prior versions and became effective July 1, 2026.
- Counties and municipalities may regulate zoning, utility connections, foundations, and permits for modular homes; local land-use controls may therefore add requirements.
tiny-home floor area: 80 to less than 400 square feet (Definition in Rule 3.01.3(42).)
““Tiny House or Home”: Any closed structure, building assembly or systems of assemblies designed for use as a residential dwelling and ranging from 80 to less than 400 square feet in size, which may or may not be constructed on a chassis (with or without axels or wheels).”
Title 19, Part 7, Chapter 3: Rules and Regulations for the Uniform Standards Code for the Factory-Built Homes Law as Related to Modular Homes ↗Re-checked Nov 4, 2026
Manufactured homesLimited
Occupation of Factory-Built homes, including manufactured homes, sited anywhere in Mississippi and installed on or after July 1, 2009.
- The home must undergo inspection under the Mississippi Inspection Program before occupation.
- The inspection is conducted by an inspector assigned by the State Fire Marshal’s Office to verify compliance with the manufacturer’s published installation instructions and Mississippi Installation Standards.
- The retailer/developer and/or installer/transporter must submit a Property Locator/Certificate of Installation Form certifying compliant installation.
- For new or used residential homes involving a retailer, the form and required photographs must be submitted within three business days after installation and before porches, decks, or skirting are installed.
- For secondary sitings without a retailer, the installer/transporter must submit the form and required photographs within three business days after installation and before porches, decks, or skirting are installed.
- All necessary state-law or local-authority-having-jurisdiction permits must be obtained before installation.
- Inspection fees are paid by the installer/transporter, developer, or retailer, not the purchaser; failure to pay an invoice within 45 days is a regulatory violation.
- Factory-Built homes designated and properly certified not to be used for human habitation, such as hunting/fishing camps or storage, are excepted from the human-habitation installation requirements.
installation inspection applicability date: 2009-07-01 · current regulation effective date: 2026-07-01 · certificate submission deadline: <= 3 business days after installation (Must also be before installation of porches, decks, or skirting; secondary sitings without a retailer follow the installer/transporter rule.) · inspection scheduling window: 7 to 10 business days after receipt of Property Locator/Certificate of Installation (May be adjusted for Division resource and manpower shortages.) · inspection invoice payment deadline: <= 45 days from invoice date (Nonpayment is a violation and numerous unpaid invoices may delay or deny license issuance.)
“Beginning July 1, 2009, every Factory-Built home that is sited within the State of Mississippi shall be subject to inspection under the MS Inspection Program prior to occupation.”
MH-5 Uniform Standards Code for Factory-Built Homes Law ↗Re-checked Oct 5, 2026
Who permits septicState (with conditions)
Individual onsite wastewater systems in Jefferson Davis County, which MSDH lists in its South Region.
- The Mississippi State Department of Health Division of On-Site Wastewater develops policy and regulations and provides technical assistance.
- Jefferson Davis County is listed in MSDH's South Region.
- Commercial developments, subdivisions, manufactured housing, multifamily developments, and RV campgrounds may require additional review or approval.
“The On-site Wastewater program develops policy and regulations [...] South Region [...] Jefferson Davis”
On-Site Wastewater ↗Re-checked Oct 6, 2026
One more reviewed finding on this topic
- Mixed — Statewide individual onsite wastewater disposal systems; the Mississippi State Department of Health establishes the rules and the appropriate county Department of Health performs local inspections.
  “Notify the Department at least 48 hours before beginning construction if acting as the Certified Installer of an Individual On-site Wastewater Disposal System and, at that time, schedule a time for inspection of the system with the appropriate county Department of Health.”
  Mississippi State Department of Health Current Regulations: On-site Wastewater ↗Re-checked Sep 11, 2026
Septic permitRequired
Design, construction, or installation of an individual on-site wastewater disposal system in Mississippi.
- MSDH approval is required except for the statutory exemption in Mississippi Code Section 41-67-6(7).
- For a two-acre-or-larger lot or tract, approval requirements are exempt only if all wastewater is contained on the lot or tract, no Mississippi or United States watercourse is impacted, and the installer submits a signed affidavit attesting to those conditions.
- An individual on-site wastewater disposal system is acceptable only where centralized treatment is unavailable or infeasible, existing area disposal systems function satisfactorily, site conditions are satisfactory for underground absorption, private-water-supply separation/protection requirements are met, and applicable water-quality requirements are met.
- Construction or installation designed by a certified professional evaluator or licensed professional engineer may not begin before Department authorization.
statutory approval-exemption lot size: >= 2 acres (All wastewater must be contained on the tract, no covered watercourse may be impacted, and an installer affidavit is required.) · private water supply separation from IOWDS: >= 50 feet (Private supply must be at a higher elevation or properly protected.) · private water supply separation from disposal field: >= 100 feet
“Approval of the design, construction or installation of an individual on-site wastewater disposal system by the department is required, except as otherwise provided in Section 41-67-6(7).”
Mississippi Individual On-site Wastewater Disposal System Law ↗Re-checked Nov 4, 2026
One more reviewed finding on this topic
- Required — New individual onsite wastewater disposal systems in Jefferson Davis County.
  “Fill out application, submit required documentation and pay fee of selected option”
  Notice of Intent: New Individual On-site Wastewater Disposal System ↗Re-checked Oct 6, 2026
Septic inspectionRequired
Design, construction, installation, and post-installation approval of individual on-site wastewater disposal systems, including systems serving property in Jefferson Davis County.
- Approval by the Mississippi State Department of Health is required except for the exemption in Mississippi Code Section 41-67-6(7).
- A lot or tract that is two acres or larger is exempt from department approval requirements if all wastewater is contained on the lot or tract, no Mississippi or United States watercourse is impacted, and the installer provides the department a signed affidavit attesting those requirements are met.
- The installer must notify the department at least 24 hours before installation and schedule an inspection with the appropriate county department of health.
- The installer may not cover the work unless authorized after inspection, except that an affidavit of proper installation may be submitted if the department environmentalist does not arrive within 30 minutes of the designated time.
- After installation, the owner or agent must submit a final approval request with the installer affidavit; advanced treatment systems also require the owner's continuing-maintenance affidavit.
- For advanced treatment systems, the owner must maintain a continuing agreement with a certified installer in perpetuity unless the owner is a qualified homeowner maintenance provider.
- The department must approve or disapprove a complete approval request within five working days; if it does not respond within ten calendar days, the request is deemed approved.
- Failure to obtain final approval or submit the required affidavit may result in an administrative fine not exceeding $10,000.
acreage exemption threshold: >= 2 acres (Exemption applies only if wastewater is contained on the lot or tract, no watercourse is impacted, and the installer submits the required affidavit.) · advance installation notice: >= 24 hours · department response period: 5 working days (If no response within 10 calendar days, approval is deemed granted.) · administrative fine: <= 10000 USD (After due notice and hearing.)
“Rule 1.5.7 Inspection. All IOWDS which requires a Final Approval must be evaluated and if mechanical, operated to determine the compliance with the applicable regulations”
Current Regulations ↗Re-checked Oct 6, 2026
3 more reviewed findings on this topic
- Required — Installation of new individual onsite wastewater disposal systems in Jefferson Davis County.
  “contacting the Department 24 hours BEFORE beginning construction to schedule an inspection.”
  Notice of Intent: New Individual On-site Wastewater Disposal System ↗Re-checked Oct 6, 2026
- Limited — Existing individual on-site wastewater disposal systems in Jefferson Davis County, including systems existing on July 1, 2014.
  “All IOWDS installed prior to July 1, 2014, shall be grandfathered in until a substantiated complaint is registered or until the property owner requests an inspection”
  msdh.ms.gov ↗Re-checked Oct 6, 2026
- Limited — Installation of an individual on-site wastewater disposal system in Mississippi.
  “The Department reserves the right to inspect installed systems after they have been in use for more than thirty (30) days on properties that have filed a two-acre exemption.”
  Notice of Intent: New Individual On-site Wastewater Disposal System, Form 908 ↗Re-checked Nov 4, 2026
Off-grid sanitationLimited
Wastewater disposal for property in Jefferson Davis County without central sewer.
- Wastewater must be directed to a central sewer system or septic system.
- Discharge of gray water to ground, ditches, or water bodies is prohibited.
“All wastewater is required to pipe into a central sewer system or a septic system for proper disposal. No “gray water” can be discharged on the ground, ditches, or bodies of water.”
On-Site Wastewater application FAQ — Mississippi State Department of Health ↗Re-checked Oct 3, 2026
Well permitLimited
Groundwater withdrawal permits for water wells in Mississippi.
- A groundwater withdrawal permit is required for water wells with surface casing diameters of 6 inches or greater.
- Some exclusions apply.
- A separate contractor licensing requirement generally applies, but a landowner may drill without a Water Well Contractor license for a single-family permanent residence or farm livestock use if applicable construction standards are followed.
- Wells with surface casing diameters below 6 inches may still be regulated by the Mississippi State Department of Health when part of a public water system.
surface casing diameter threshold: >= 6 inches (Some exclusions apply.)
“State law requires that you obtain a groundwater withdrawal permit for water wells with surface casing diameters 6-inches or greater in diameter. Some exclusions apply to this requirement.”
Guidelines for Securing the Services of a Water Well Driller ↗Re-checked Sep 11, 2026
Mandatory utility hookupConditional
Public water connections and connection to centralized wastewater treatment systems for residences, buildings, and facilities in Mississippi.
- A public water utility may not connect water service without prior written Department approval certifying that the sewage treatment and disposal plan complies with state law.
- Water utility connections may be made during construction only if the Department approved the sewage plan and the owner agreed to inspection and approval before use or occupancy.
- Where centralized wastewater treatment is constructed and becomes available, onsite systems must be abandoned and residences, buildings, or facilities connected to the centralized system.
- Temporary onsite systems may be used only under the stated 36-month centralized-treatment conditions.
centralized wastewater availability deadline: 36 months (The developer must sign a written agreement to connect when available and install internal sewage collection to the connection point.)
“Where a Centralized Wastewater Treatment System is available, all places shall have a properly constructed connection to the centralized wastewater treatment system which all human excreta and other liquid waste shall be disposed”
Mississippi State Department of Health Current Regulations: On-site Wastewater ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Conditional — Water-meter connection for property requiring a new individual onsite wastewater disposal system.
  “Submit the Permit/Recommendation, for a water service connection (water meter)”
  Notice of Intent: New Individual On-site Wastewater Disposal System ↗Re-checked Oct 6, 2026
Agricultural exemptionAvailable
Applicability of Mississippi Code Title 73, Chapter 59 residential-builder and remodeler licensing requirements.
- The cited exemption applies to the Residential Builders and Remodelers chapter.
- It covers agricultural buildings, buildings used for agricultural purposes, buildings constructed as a community effort, and tenant houses.
- The source does not establish an exemption from independently applicable local permits, zoning, floodplain rules, or wastewater requirements.
“This chapter shall not apply to: (a) Agricultural buildings, buildings used for agricultural purposes, buildings constructed as a community effort, or tenant houses;”
Mississippi State Board of Contractors, Residential Builders Law ↗Re-checked Nov 4, 2026
Subdividing landRegulated (with conditions)
Mississippi State Department of Health review of subdivision land divisions for onsite-wastewater suitability; this does not establish that MSDH approves the general land-use plat or replaces county or municipal plat review.
- A subdivision is defined for this review as land divided into ten (10) or more lots, tracts, sites, or parcels for residential development.
- Local or county ordinances may reduce the ten-lot threshold.
- If public water will be used, the Bureau of Public Water Supply may require subdivision review regardless of lot count.
- Developments of 35 or more lots and additional phases by the same owner require a feasibility study; developments under 35 lots may be required to obtain one case-by-case.
- No lots may be sold or construction started before evaluation.
- The subdivision plan-review fee is $325 plus $6.50 per lot; online payment is subject to a processing fee and fees may change.
- The plan review is voided if the developer alters the plat without notifying MSDH; MSDH determines whether a new review is required.
- MSDH reviews lots for general suitability of onsite wastewater treatment and disposal for one residence per lot; septic, soil, wetland, water-supply, and other health requirements remain applicable.
residential subdivision threshold: >= 10 lots (Local ordinances may reduce the minimum below ten lots.) · feasibility-study threshold: >= 35 lots (Additional phases by the same owner also require a feasibility study; smaller developments may be required case-by-case.) · subdivision plan-review fee: 325 USD (Plus $6.50 per lot; online payment processing fee and possible additional costs may apply.)
“All lots are reviewed for general suitability of on-site wastewater treatment and disposal for a single residence per lot.”
Subdivision Plan Review ↗Re-checked Oct 5, 2026
One more reviewed finding on this topic
- Regulated (with conditions) — Onsite wastewater design and approval for subdivisions and other commercial developments in Jefferson Davis County.
  “Staff engineers review and authorize Certified Professional Evaluator's designed On-site Wastewater Disposal Systems, Commercial Developments (Subdivisions, Manufactured, Multi-family, RV Campgrounds/Lodging Parks)”
  On-Site Wastewater — Mississippi State Department of Health ↗Re-checked Oct 3, 2026
Driveway accessRequired
Driveways and specified changes of use connecting to Mississippi state highways.
- A permit is required for new driveways.
- A permit is required for alterations to existing drives.
- A permit is required for a change of use causing a daily-trip increase of 10% or 100 daily trips, whichever is greater.
- A permit is required for property-use changes from non-commercial to commercial.
- If access is expected to exceed 100 peak-hour trips, a traffic-impact study must be submitted.
- If the permitted land use changes, the original permit is revoked and a new permit must be applied for.
- A denied permit may be appealed within 10 days after receipt of the denial notification.
daily trip increase threshold: 10 percent (or 100 daily trips, whichever is greater) · traffic impact study threshold: > 100 peak-hour trips · appeal deadline: 10 days (after receipt of denial notification)
“For State Highways a permit is required for: 1. New driveways; 2. Alterations to existing drives;”
Mississippi Access Management Guide ↗Re-checked Sep 11, 2026
Building in a floodplainRequired
Development or improvement activity on state-owned Mississippi property or buildings located in FEMA Special Flood Hazard Area zones A, AE, V, or VE.
- The requirement applies to state-owned property or buildings.
- For existing structures determined to involve less than a Substantial Improvement, no additional forms or approval are required after Step One.
- For new development or a Substantial Improvement, the applicant must complete the Step Two form, obtain a Control Code, provide all required attachments, and submit final elevation certification and complete drawings and specifications.
- Approval produces an initial approval letter and, after final requirements are approved, a final approval letter.
- If Step Two is not approved and the project cannot be brought into compliance, a denial letter is issued.
covered FEMA zones: A, AE, V, VE · substantial improvement threshold: less than a Substantial Improvement (no additional forms or approval required for the development project)
“A development or improvement activity to state-owned property or building, [...] must complete a Floodplain Management Permit Application.”
Mississippi Administrative Code — State Property Floodplain Regulations ↗Re-checked Sep 11, 2026
Permit feesPublished (with conditions)
Mississippi Department of Transportation over-dimensional and related permits statewide.
- The published schedule applies to MDOT permit types, not a general statewide building-permit fee schedule.
- Blanket permits are not prorated and are issued for one year unless otherwise specified.
- Blanket permits must have valid insurance or a valid U.S. DOT number; if insurance expires or cancels, the blanket permit becomes invalid.
- Overweight charges apply to weight exceeding 80,000 pounds or specified axle limits.
oversize permit fee: 10 USD · oversize blanket fee: 100 USD · 72-hour legal trip permit fee: 25 USD · harvest permit fee: 25 USD · port permit fee: 170 USD per year · pole blanket fee: 200 USD
“Oversize permit $10.00 Oversize Blanket $100.00”
Mississippi Department of Transportation Permit and Blanket Fees ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Published (with conditions) — MSDH onsite-wastewater applications affecting Jefferson Davis County.
  “Notice of Intent + Final Approval is currently $197.50 Notice of Intent + Exemption is currently $100 [...] Subdivision is currently $325 + $6.50/lot”
  On-Site Wastewater application FAQ — Mississippi State Department of Health ↗Re-checked Oct 3, 2026
Permit processPartial
MSDH onsite-wastewater permitting process for property in Jefferson Davis County.
- The application must be complete and accompanied by the selected-option fee.
- A soil and site evaluation precedes the permit/recommendation.
- A certified installer must schedule inspection before construction.
- This is not a county building-permit process.
“STEP 1 – Fill out application, submit required documentation and pay fee of selected option (a processing fee will be included) STEP 2 - Soil and Site Evaluation [...] STEP 3 - Permit/Recommendation”
Notice of Intent: New Individual On-site Wastewater Disposal System, Form 908 ↗Re-checked Oct 3, 2026
One more reviewed finding on this topic
- Partial — Mississippi local permitting for businesses and business-related construction or land development.
  “You may be required to apply for permits and licenses from your local government (e.g., city or county). Different locations have different requirements.”
  Start Your Business in Mississippi — County and City Permits ↗Re-checked Sep 11, 2026
Campground & park staysLimited
Recreational-vehicle occupancy at campgrounds under the jurisdiction of the Pearl River Valley Water Supply District, including Coal Bluff, Goshen Springs, Leake County Water Park, Low Head Dam, and Timberlake.
- The rules apply within all campgrounds under the District’s jurisdiction.
- Campgrounds are not intended to be permanent domiciles for campground guests.
- A recreational vehicle must be in operable road-worthy condition, properly registered and insured in its domicile state or province, with a current license plate affixed.
- Campers may not stay on any pad longer than 12 consecutive months; Standard Plus campers may move to another available pad after 12 months, but the District is not responsible for making a pad available.
- Campsites are typically designed for trailers or recreational vehicles no longer than 32 feet or wider than 8 feet, subject to the stated RVIA-seal, holding-tank, facility-capacity, and prohibited-unit conditions.
- Primitive camping areas without water, electricity, or sewer are not intended for recreational vehicles.
- No permanent structures may be erected on a campsite; temporary accessibility stairs, stoops, steps, or ramps require the stated approvals and size limits.
- Camping is confined to designated campground or overflow areas, and no more than one camping unit is allowed per pad without Campground Manager approval.
maximum stay on one pad: <= 12 consecutive months (Campers may move to a different available pad after 12 months.) · typical campsite RV length: <= 32 feet (Larger units may be accepted if they satisfy the stated RVIA seal, holding-tank, and facility-capacity conditions.) · typical campsite RV width: <= 8 feet (Larger units may be accepted if they satisfy the stated RVIA seal, holding-tank, and facility-capacity conditions.)
“Campers shall not stay on any pad longer than 12 consecutive months”
General Campground Rules and Policies - Ross Barnett Reservoir ↗Re-checked Sep 11, 2026
One more reviewed finding on this topic
- Limited — Temporary camping at designated campgrounds under the jurisdiction of the Pearl River Valley Water Supply District.
  “Camping shall be confined to the designated campground or designated overflow areas.”
  General Campground Rules and Policies - Ross Barnett Reservoir ↗Re-checked Sep 11, 2026
county building authorityGeneral
Mississippi county boards of supervisors' authority and obligation to adopt uniform building codes, including in unincorporated county territory, subject to the statutory opt-out framework.
- All counties and municipalities must enact uniform building codes unless they opted out before November 30, 2014.
- A county board of supervisors adopting building codes after July 1, 2008 must adopt as minimum codes codes established and promulgated by the Mississippi Building Codes Council.
- The statewide source does not identify current county-by-county residential permit enforcement or opt-out status.
opt-out deadline: 2014-11-30 · minimum-code requirement for codes adopted after: >= 2008-07-01
“Under Senate Bill 2378 of 2014, all counties and municipalities must enact uniform building codes unless they opt out prior to Nov. 30, 2014.”
Mississippi Uniform Building Codes ↗Re-checked Oct 1, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

County-wide zoning — Countywide zoning authority in Jefferson Davis County, including unincorporated areas.
Local zoning — Local zoning in incorporated and unincorporated areas of Jefferson Davis County.
Zoning districts — Published zoning districts in Jefferson Davis County.
Minimum dwelling size — Minimum dwelling size in Jefferson Davis County.
Minimum lot size — Minimum lot size in Jefferson Davis County.

5 more unanswered

Lot coverage
Building height
Camping on your land
Accessory dwellings
Short-term rentals

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Jefferson Davis County, Mississippi

Is Jefferson Davis County a good place to live off-grid or homestead?

Jefferson Davis County scores 74/100 on the Bolthole Index, a strong county profile. Its strengths: manageable long-term carry cost and strong self-sufficiency basics: 60.4″/yr rainfall with little drought. Watch-outs: a weaker property-autonomy legal backdrop.

How much does land cost in Jefferson Davis County, Mississippi?

Land in Jefferson Davis County runs about $3,188 per acre, based on the latest county data.

What is the water situation in Jefferson Davis County?

Jefferson Davis County gets about 60.4" of rain a year, with severe drought in roughly 3.9% of years.

How remote is Jefferson Davis County?

A representative private-land location has about 17,534 people within a 30-minute drive and 1,669,121 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Building permits and land rules in Jefferson Davis County, Mississippi