Smith County, MS: No Zoning, Owner-Builder Allowed

Smith County, Mississippi does not publish a building-permit office or process, so we could not confirm how the county administers construction permits in unincorporated areas¹. Call the Smith County Board of Supervisors before beginning work². The Mississippi State Department of Health handles onsite-wastewater permitting and site evaluations³.

At a glance

Building permit: Unconfirmed for unincorporated land; ask the Board of Supervisors^1,2
Zoning: No countywide zoning identified; municipal rules can differ⁴
Septic permit: Mississippi State Department of Health⁵
RV living: Private-land occupancy rules could not be confirmed^2,3
Tiny home: Siting and occupancy rules could not be confirmed²
Owner-builder: State licensing exemption for work on your own residence; local permits may apply⁶
Well permit: State permit at a 6-inch-or-greater surface casing diameter, with exclusions⁷

Who to call

Building permits

Smith County Board of Supervisors

County government, local ordinances and questions about the unpublished building-permit process

601 782-4000

P O Box 160, Raleigh, MS 39153

Septic permits

Mississippi State Department of Health, Division of On-Site Wastewater

Onsite-wastewater applications, site and soil evaluations and environmental complaints; Smith County is in the Central Region

601-576-7150

wastewater@msdh.ms.gov

570 East Woodrow Wilson Drive, Jackson, MS 39216

Online permits →

One more officeHealth department

Health department

Smith County Health Department

Local county health contact; confirm septic inspection scheduling with the state program

601-782-4472

P.O. Box 305, Raleigh, MS 39153

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 Smith County, Mississippi?

We could not confirm Smith County's current building-permit procedure for unincorporated land.

We could not confirm Smith County's current building-permit procedure for unincorporated land. Mississippi law directs counties to require permitting as a condition of construction in unincorporated areas, but Smith County publishes no building or permit office or process¹. Do not interpret the missing office listing as permission to start work. Ask the Smith County Board of Supervisors whether your house, cabin, accessory building or alteration needs county approval and which official receives an application².

Mississippi also has a statewide uniform-building-code framework: counties and municipalities were directed to enact uniform codes unless they opted out before the stated deadline, but that source does not establish Smith County's present status⁸. An owner acting as general contractor on the owner's own residence has a state residential-builder licensing exemption, but that exemption does not erase a local permit requirement⁶.

Who handles building permits in Smith County, Mississippi?

Smith County does not identify a building department, inspector or permit portal, so the practical starting point is the Smith County Board of Supervisors.

Smith County does not identify a building department, inspector or permit portal, so the practical starting point is the Smith County Board of Supervisors. The Board manages county government and adopts local ordinances². Ask whether the parcel is in unincorporated Smith County, whether the proposed work needs a permit or inspection, what code applies, where plans are filed and whether a certificate of occupancy is issued. Those details remain unconfirmed¹.

If the parcel is inside an incorporated town, contact that municipality because local requirements vary across Mississippi⁹. For an owner-builder, separate contractor licensing from permitting: Mississippi's own-residence exemption concerns residential-builder licensing, not every approval a local government may require⁶.

Does Smith County, Mississippi have zoning?

Smith County appears to have no countywide zoning ordinance, with zoning limited to municipalities.

Smith County appears to have no countywide zoning ordinance, with zoning limited to municipalities⁴. Septic permits stay with the Mississippi State Department of Health inside towns and outside them⁵. For rural land, however, we could not confirm published county rules for setbacks, minimum lot size, dwelling size, building height, lot coverage, subdivisions or accessory dwellings. Ask the Smith County Board of Supervisors for any ordinance that affects the parcel².

A no-zoning finding does not settle building codes, septic approval, highway access, deed restrictions or floodplain requirements. Mississippi's building-code framework is separate from zoning and does not establish Smith County's current adoption status⁸. Before buying, confirm whether a deed or subdivision plat carries private restrictions and determine whether the property lies inside municipal limits. Municipal zoning should not be assumed to apply to unincorporated land, and the countywide finding should not predict rules inside a town⁴.

How do septic permits work in Smith County, Mississippi?

The Mississippi State Department of Health administers individual onsite-wastewater permitting in Smith County, which is assigned to the agency's Central Region.

The Mississippi State Department of Health administers individual onsite-wastewater permitting in Smith County, which is assigned to the agency's Central Region⁵. Start with the On-Site Wastewater Program's online application. Agency environmentalists perform soil and site evaluations and provide a permit or recommendation used for a water meter³.

Published charges include $197.50 for a Notice of Intent with final approval, $100 for a Notice of Intent with exemption and $100 for an existing-residential inspection; fees can change, online payment has a processing charge and other costs can apply¹⁰. State rules direct a certified installer to notify the department at least 48 hours before construction and schedule inspection with the appropriate county Department of Health¹¹. Confirm scheduling with MSDH or the Smith County Health Department⁴. A permanent water meter cannot be issued until a permanent sewage-disposal solution, either a sewer line or a septic system, is available¹⁰. A new single-family residence installing a septic system for the first time may qualify for an exemption under which the state does not go out to approve the installation, but a licensed installer must still install the system legally⁵. Only about 14% of county soils avoid severe conventional-drain-field limitations, so make approval a purchase contingency¹².

Can you live in an RV or tiny home in Smith County, Mississippi?

We could not confirm a Smith County rule that permits or prohibits living in an RV on private land, temporary camping, tiny-home occupancy, manufactured-home siting or a county minimum dwelling size.

We could not confirm a Smith County rule that permits or prohibits living in an RV on private land, temporary camping, tiny-home occupancy, manufactured-home siting or a county minimum dwelling size. Ask the Smith County Board of Supervisors about land-use and occupancy rules before treating an RV or tiny home as a residence². If the parcel is inside a municipality, ask that town separately because zoning is reported within municipalities rather than countywide⁴.

Wastewater approval remains separate even where county zoning is absent: wastewater must go to a central sewer or a permitted septic system, and gray water may not be discharged on the ground or into ditches¹⁰. MSDH handles onsite-wastewater applications and evaluates the site and soil³. For a tiny home built as your own residence, the state owner-builder licensing exemption may help with contractor licensing, but it does not establish siting permission or waive an otherwise required permit⁶.

How do you build a home in Smith County, Mississippi?

Confirm whether the parcel is unincorporated or inside a municipality; zoning is reported only within Smith County's municipalities.

Confirm whether the parcel is unincorporated or inside a municipality; zoning is reported only within Smith County's municipalities⁴.
Call the Smith County Board of Supervisors and ask what building permit, code, plan review, inspection and occupancy steps apply^1,2.
Apply to MSDH for the onsite-wastewater site and soil evaluation before fixing the house location^3,5.
Resolve water. A groundwater-withdrawal permit applies to a well with a surface casing diameter of 6 inches or more, subject to exclusions⁷.
Secure access. A new or altered driveway connecting to a state highway needs an MDOT permit¹³.
If acting as your own general contractor, document the state licensing exemption while completing every locally required approval⁶.

What should you check before buying land in Smith County?

Make septic feasibility the first physical check.

Make septic feasibility the first physical check. Only about 14% of Smith County soils are rated without severe limitations for a conventional drain field, and MSDH evaluates the site and soil before issuing its permit or recommendation^3,12. Verify legal access and identify the road owner; a driveway connecting to a Mississippi state highway requires a permit, and approved work must be completed within one year or the permit becomes void¹⁴.

Confirm municipal boundaries because zoning is reported inside towns, not countywide⁴. Ask the Board about unresolved building, subdivision, setback and floodplain questions². Check the title and recorded plat for private restrictions. For a planned well, determine casing size and exclusions because the state withdrawal-permit threshold begins at 6 inches⁷. The countywide effective property-tax rate is about 0.5%, with a median annual bill of about $521¹².

Watch-outs

Smith County's lack of a published building office is not proof that construction is permit-free; ask the Board of Supervisors before work begins^1,2.
An owner-builder exemption addresses state contractor licensing, not local permits or land-use approval⁶.
Only about 14% of Smith County soils avoid severe conventional-drain-field limitations¹².
A state-highway driveway requires MDOT approval, while we could not confirm a published rule for every county-road driveway¹⁴.

Sources

14 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 Smith County means bringing your own water and power. The kit we’d start with:

These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.

Compared with neighboring counties

Rule	Smith County	Covington County	Jasper County	Simpson County	Jones County	Jefferson Davis County	Scott County
Building permit	Not published	Not published	Not required	Required	Required	Not published	Limited
County zoning	No	Not published	No	Not published	Not published	Not published	Not published
Septic permits	MS State Dept. of Health	MSDH	MS State Dept. of Health	MS State Dept. of Health	County Health Dept.	MS State Dept. of Health	Scott County

Cities and towns in Smith County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Answers from the rulebook for Smith County

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

Smith County rules

County-wide zoningAbsent
Smith County's official department list includes no planning or zoning office and there is no county-wide zoning ordinance; zoning exists only within municipalities.
Smith County - Departments ↗From the county’s own site, awaiting a second reviewer

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)
Mississippi residential-builder licensing for a person constructing or improving the person's own residence, including in Smith County.
- The chapter does not apply to a person undertaking construction or improvement on the person's own residence or acting as the person's own general contractor.
- For a related-person exemption, the owner must be related by consanguinity or direct affinity and the property or improvement must not be for sale, rent, public use, or public assembly.
- A person specified in subsection (1)(b) or (c) shall not make more than one application for a permit to construct a single residence or construct more than one single residence within a period of one year.
- More than one application or more than one single residence within one year creates a rebuttable presumption of intent to construct for sale, lease, rent, or a similar purpose.
- A county or municipality building official must refuse a permit for work that would classify the applicant as a residential builder or remodeler unless the applicant provides evidence of licensure or exemption.
maximum permit applications for a single residence by a person under subsection (1)(b) or (c): <= 1 application per year (More than one application creates a rebuttable presumption of intent to construct for sale, lease, rent, or similar purpose.) · maximum single residences constructed by a person under subsection (1)(b) or (c): <= 1 residence per year (More than one residence creates a rebuttable presumption of intent to construct for sale, lease, rent, or similar purpose.)
“Any person who undertakes construction or improvement on his own residence, or who acts as his own general contractor”
Residential Laws and Rules - Mississippi State Board of Contractors ↗Re-checked Oct 4, 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
5 more reviewed findings on this topic
- Adopted (with conditions) — Mississippi counties and municipalities, including Smith County unless the jurisdiction timely opted out.
  “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 4, 2026
- Partial — Mississippi counties and municipalities, including Smith County, subject to the county or municipality's opt-out status.
  “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 6, 2026
- Adopted (with conditions) — State of Mississippi Office of the State Fire Marshal adoption of the 2024 International Fire Code and International Building Code.
  “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 Oct 7, 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
Individual onsite wastewater systems and related permitting in Smith County.
- Smith County is listed in the MSDH Central Region.
- Local ordinances may also affect an application.
“The On-site Wastewater program develops policy and regulations [...] Central Region [...] Smith”
On-Site Wastewater - Mississippi State Department of Health ↗Re-checked Sep 26, 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 — Installation of septic systems and permanent sewage-disposal solutions in Smith County.
  “The Permit is required for a water meter and the installation of an on-site wastewater disposal system.”
  Wastewater Application FAQs ↗Re-checked Sep 26, 2026
Septic inspectionLimited
Installation of an individual on-site wastewater disposal system in Mississippi.
- For the ordinary Notice-of-Intent and Final-Approval process, the certified installer must contact MSDH 24 hours before construction to schedule an inspection.
- A two-acre exemption applicant receives a site evaluation and disposal-system recommendation, but MSDH does not inspect during installation.
- For the two-acre exemption, the Department reserves the right to inspect an installed system after it has been in use for more than 30 days.
- Final approval requires the installer affidavit; advanced treatment systems also require the property owner's maintenance affidavit.
advance notice before construction: >= 24 hours (Certified installer must contact the Department to schedule inspection.) · two-acre-exemption post-use inspection threshold: > 30 days (MSDH reserves the right to inspect systems on properties that filed a two-acre exemption.)
“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
One more reviewed finding on this topic
- Limited — MSDH inspection or approval of onsite wastewater installations in Smith County.
  “Environmentalists offer Soil and Site Evaluations that provide property owners with a Permit/Recommendation (required to obtain a water meter) and suitable for installation.”
  On-Site Wastewater - Mississippi State Department of Health ↗Re-checked Sep 26, 2026
Off-grid sanitationLimited
Off-grid wastewater sanitation in Smith County.
- Wastewater must be piped into a central sewer system or septic system.
- Gray water is not recognized separately and may not be discharged on the ground, into ditches, or into bodies of water.
- A septic system requires an MSDH permit and licensed installer.
“Mississippi does not recognize gray water. Anything that could be considered gray water in other states is classified as wastewater in Mississippi. All wastewater is required to pipe into a central sewer system or a septic system for proper disposal.”
Wastewater Application FAQs ↗Re-checked Sep 26, 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 — Permanent water-meter and sewer-connection conditions for property in Smith County.
  “State law requires you have permanent sewage disposal solution available to receive a permanent water meter. Permanent sewage disposal solutions can be a sewer line or septic system.”
  Wastewater Application FAQs ↗Re-checked Sep 26, 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
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
One more reviewed finding on this topic
- Required — Driveways connecting to Mississippi state highways in Smith County.
  “APPLICATION FOR PERMIT TO CONSTRUCT DRIVEWAY WITH CONNECTION TO STATE HIGHWAY”
  Application for Permit to Construct Driveway with Connection to State Highway ↗Re-checked Sep 26, 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) — Published Mississippi State Department of Health onsite-wastewater application fees applicable in Smith County.
  “$197.50 [...] $100 [...] $412.50 + $2.60/unit [...] $325 + $6.50/lot”
  Wastewater Application FAQs ↗Re-checked Sep 26, 2026
Permit processPublished (with conditions)
MSDH onsite-wastewater permit process applicable in Smith County.
- Submit a complete application and supporting documents.
- Pay the required fee after MSDH receives the complete application.
- MSDH provides confirmation paperwork after the property visit.
- A regular septic installation requires MSDH approval and licensed installation.
“File a complete application. Our application forms for new onsite wastewater systems are now online. Apply online using the button below. You may also use our printable PDF application forms. Submit documents to us by fax, mail to our physical location (see contact information below) or by e-mail to wastewater@msdh.ms.gov . Please include identifying information with any submitted documentation. Pay fees. Once we receive a complete application, we will e-mail you a link to an online payment system (there is a small additional fee for online payment).”
On-Site Wastewater - Mississippi State Department of Health ↗Re-checked Sep 26, 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.

Local zoning — Municipal zoning within Smith County (e.g., Raleigh, Mize)
Zoning districts — Published zoning districts in Smith County.
Minimum dwelling size — Minimum dwelling size in unincorporated Smith County
Minimum lot size — Minimum lot size in unincorporated Smith County
Lot coverage — Lot coverage in Smith County.

4 more unanswered

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 Smith County, Mississippi

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

Smith County scores 76/100 on the Bolthole Index, a strong county profile. Its strengths: manageable long-term carry cost and strong self-sufficiency basics: 59″/yr rainfall plus 78.2% wooded land. Watch-outs: a weaker property-autonomy legal backdrop.

How much does land cost in Smith County, Mississippi?

Land in Smith County runs about $3,551 per acre, based on the latest county data.

What is the water situation in Smith County?

Smith County gets about 59" of rain a year, with severe drought in roughly 4.2% of years.

How remote is Smith County?

A representative private-land location has about 11,716 people within a 30-minute drive and 1,335,345 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, zoning and land rules in Smith County, Mississippi