Bolthole Index

Forrest County, Mississippi

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

64Index Score / 100
#68 of 82 in Mississippi

Unincorporated Forrest County, Mississippi has no county building-code administration or county certificates of occupancy; other residential building-permit requirements remain unconfirmed12. County Planning reviews stormwater, floodplain and subdivision compliance, while countywide zoning remains unconfirmed34. Hattiesburg and Petal handle their own building permits and zoning5678. MSDH handles septic approval, with additional private-sewage requirements inside Hattiesburg910.

At a glance

Building permit
The county does not administer building codes or certificates of occupancy; any other permit requirement is unconfirmed2
Zoning
Not confirmed for unincorporated land; ask the Planning Department about the parcel4
Septic permit
Required through the Mississippi State Department of Health for an onsite system911
RV or tiny home
Unconfirmed on unincorporated land; Hattiesburg prohibits using an RV for living, sleeping or housekeeping412
Owner-builder
State residential-builder licensing exemption for an owner building or improving their own residence13
Land division
County subdivision review starts at 4 lots outside city limits; agricultural divisions without new roads are exempt1415
Well permit
A state groundwater withdrawal permit generally starts at a 6-inch surface casing16

Who to call

Planning & zoning

Forrest County Planning Department

Stormwater, floodplain development and subdivision ordinance compliance for unincorporated Forrest County; does not administer building codes or issue certificates of occupancy

(601) 545-6000

641 N Main Street, Hattiesburg, MS 39401

Septic permits

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

Septic (individual on-site wastewater disposal system) permits, soil and site evaluations, and well-water sampling for Forrest County

1-855-220-0192

570 East Woodrow Wilson Drive, Jackson, MS 39216

Contact details are copied from each office’s official page and were checked against it on October 11, 2026.

Off-grid gear

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

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

Forrest County does not administer building codes or issue county certificates of occupancy in unincorporated areas1. We could not confirm whether another authority requires residential building permits or inspections, so ask County Planning before treating a parcel as permit-free2. Inside Hattiesburg, the city generally requires building permits for new residences and residential repairs or alterations; Petal requires its building permit to be issued and displayed before work begins57. MSDH still administers onsite wastewater approval in both cities, with additional city private-sewage requirements in Hattiesburg1017. Mississippi's owner-builder exemption concerns residential-builder licensing for work on the owner's own residence; it does not waive a required building permit or inspection13.

Who handles Forrest County development review, and how do you reach them?

Forrest County Planning is the first stop before any development on unincorporated land for stormwater, floodplain and subdivision compliance3. The Planning Department is at 641 N Main Street in Hattiesburg and can be reached at (601) 545-600018. For land disturbance up to 0.9 acre, the published stormwater rules require notification to Planning but no stormwater permit or stormwater pollution-prevention plan19. Disturbing 1 to 5 acres requires a county stormwater permit, Notice of Intent and pollution-prevention plan; more than 5 acres requires filings with the Mississippi Department of Environmental Quality and a copy to County Planning19. Forrest County also has a floodplain development ordinance, but its permit procedure, numeric standards and exceptions remain unconfirmed; ask Planning how the ordinance affects the site20.

Does Forrest County have zoning, lot-size rules or setbacks?

Countywide zoning for unincorporated Forrest County remains unconfirmed4. Hattiesburg administers its own zoning districts and Land Development Code, and Petal has its own district-specific zoning rules68. MSDH remains involved in onsite wastewater approval inside both cities, with additional Hattiesburg private-sewage requirements1017. Outside city limits, covered subdivisions may contain no more than 4 lots per acre, and improvements must be at least 25 feet from the abutting road or street right-of-way; owners may petition the Board of Supervisors for a variance2122. Those are subdivision standards, not confirmed general dimensions for every unincorporated parcel2324. Subdivision locations must also conform to nearby or adjacent municipal zoning unless the Board waives that condition25.

How do septic permits work in Forrest County?

The Mississippi State Department of Health Division of On-Site Wastewater handles septic regulation and approval in Forrest County9. Installing an onsite system requires a septic permit, and a permanent water meter requires an approved permanent sewage-disposal solution1126. Public sewer has first right to serve; MSDH refers applications within 1 mile of a sewer line for connection and requires a sewer-provider rejection letter before proceeding with septic approval26. Household wastewater, including gray water, must go to sewer or septic rather than the ground, ditches or bodies of water27. Listed residential fees are $197.50 for Notice of Intent plus final approval and $100 for Notice of Intent plus exemption; fees can change, and processing or other costs may apply28. About 34% of Forrest County soils are rated not limited for conventional drain fields; that countywide rating does not establish suitability of a particular lot, so arrange a site evaluation early29.

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

We could not confirm a rule allowing or prohibiting residential RV or tiny-home occupancy on unincorporated Forrest County land; ask County Planning about the parcel and proposed use4. Hattiesburg prohibits using campers, trailers or recreational vehicles for living, sleeping or housekeeping on lots in its residential zones and other covered areas12. Petal has district-specific municipal zoning, so ask the city's Building Department about the proposed use there830. Sanitation remains a separate requirement: gray water must go to sewer or septic, and a temporary portable toilet depends on local authorization rather than MSDH approval27. A manufactured home also needs the applicable state installation inspection before occupancy, regardless of the unresolved county land-use answer31.

Building a home in Forrest County: what are the steps?

  1. Establish whether the address is unincorporated or inside Hattiesburg or Petal: the cities handle their own building permits, while County Planning directs applicants to contact it before unincorporated development573.
  2. Tell County Planning the disturbed acreage and ask how stormwater and floodplain requirements apply1920.
  3. Resolve sewer availability with the provider and MSDH before applying for septic approval or arranging a permanent water meter26.
  4. For a division into 4 or more lots outside city limits, submit the surveyed plat and improvement plans to the Board of Supervisors; agricultural divisions without new roads or streets are exempt from the subdivision ordinance only1432.
  5. Obtain an MDOT driveway permit for a new or altered connection to a state highway33.

What should you check before buying land in Forrest County?

Mississippi does not require a septic inspection solely because a home is being sold, but MSDH recommends one; lenders, utilities, local authorities or parties to the sale may request it, and separate installation or advanced-treatment requirements still apply34. MSDH lists an existing-residential inspection at $100, subject to change34. For a covered unincorporated subdivision, an existing sewer main within 500 feet requires sewer construction if acceptable to the municipality; an available water utility within 500 feet triggers certificate and contract documentation35. Developers also bear subdivision road-inspection costs determined by the County Engineer and approved by the Board of Supervisors36. A subdivision driveway crossing a drainage ditch must be at least 20 feet wide with a culvert laid to the ditch profile; this does not establish a general single-parcel driveway permit3738. A state groundwater withdrawal permit generally applies to wells with surface casing at least 6 inches in diameter, subject to exclusions16.

Watch-outs

  • No county building-code administration does not settle every building-permit or inspection question; ask County Planning which authority applies to unincorporated construction12.
  • Public sewer has first right to serve, and a permanent water meter depends on a permanent sewage-disposal solution; resolve both before relying on septic approval26.
  • The agricultural exemption covers land divisions without new roads or streets under the subdivision ordinance; it does not exempt farm construction from other wastewater, floodplain or utility requirements39.

Sources

  1. Forrest County Planning Department, quoted and re-checked
  2. Forrest County, MS Planning Department (2026 county census)
  3. Forrest County Planning Department, quoted and re-checked
  4. (2026 county census)
  5. Hattiesburg: Residential - City of Hattiesburg (Forrest County), quoted and re-checked
  6. Hattiesburg: Land Development Code (Forrest County), quoted and re-checked
  7. Petal: Permit Applications & Requirements (Forrest County), quoted and re-checked
  8. Petal: Appendix A - Zoning, 6.03 R-2 low to medium density residential district (Forrest County), quoted and re-checked
  9. On-Site Wastewater - Mississippi State Department of Health, quoted and re-checked
  10. Hattiesburg: Chapter 21 - Sewer ordinance (Forrest County), quoted and re-checked
  11. Wastewater Frequently Asked Questions, quoted and re-checked
  12. Hattiesburg Revised Land Development Code, quoted and re-checked
  13. Mississippi Senate Journal, March 9, 2022 (Mississippi statewide rule), quoted and re-checked
  14. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  15. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  16. Guidelines for Securing the Services of a Water Well Driller (Mississippi statewide rule), quoted and re-checked
  17. Petal: On-Site Wastewater (Forrest County), quoted and re-checked
  18. Forrest County Planning Department (forrestcountyms.us)
  19. Forrest County Stormwater Ordinance, quoted and re-checked
  20. Forrest County Planning Department, quoted and re-checked
  21. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  22. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  23. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  24. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  25. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  26. Wastewater Frequently Asked Questions, quoted and re-checked
  27. Wastewater Frequently Asked Questions, quoted and re-checked
  28. Wastewater Frequently Asked Questions, quoted and re-checked
  29. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
  30. Planning Commission | Petal Mississippi, quoted and re-checked
  31. MH-5 Uniform Standards Code for Factory-Built Homes Law (Mississippi statewide rule), quoted and re-checked
  32. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  33. Mississippi Access Management Guide (Mississippi statewide rule), quoted and re-checked
  34. Wastewater Application Frequently Asked Questions, quoted and re-checked
  35. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  36. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  37. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  38. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked
  39. Ordinance Governing the Development of Land and Prescribed Minimum Standards for the Design and Construction of Roads and Streets, quoted and re-checked

Written October 11, 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.

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Compared with neighboring counties

Unlike all 4 of the neighbors with published rules, Forrest County requires no county building permit for a home.

RuleForrest CountyLamar CountyPerry CountyStone CountyJones CountyPearl River CountyMarion County
Building permitNot requiredRequiredNot publishedRequiredRequiredRequiredNot published
County zoningNot publishedYesNoNoNot publishedNot publishedNo
Septic permitsMSDHMSDHMS State Dept. of HealthMS State Dept. of HealthCounty Health Dept.MS State Dept. of HealthMS State Dept. of Health

County locator

Forrest County in Mississippi

64
County map
Forrest County highlighted among the Mississippi counties · colored by Index score

How Forrest County scores

Seclusion36100% ev.
Self-Sufficiency72100% ev.
Admin Boringness7577% ev.
Durability57100% ev.
Property Autonomy39100% ev.
Carry Cost81100% ev.

Evidence strength: 96%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$191kTypical home
0.8%Property tax
$5,040Land / acre
62.1"Annual rain
6.1% of yrsSevere drought
15 / yr (+13.5)Mid-century 100°F days
16.9 daysMid-century dry spell
3.14" (+7.2%)Mid-century 1-day rain
1.38×Wildfire change factor
100%Forward climate coverage
$2,132Home insurance / yr
-0.3% / yrInsurance growth
1.52%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
148,839People within 30 min
3,113,646People within 2 hr
106,265Radius comparison (15 mi)
167.8People / sq mi
20.4%Federal land
85.4%Land at 15% slope or less
34%Soils rated "not limited" for septic (strict USDA rating)
98,986 acWorkable land screen
79.8%Wooded land
43.5 tonsBiomass / forest ac
66.1°FAvg temp

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Cities and towns in Forrest 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 Forrest County

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

Forrest County rules

  • Certificate of occupancyNot required

    County-issued certificates of occupancy for development in unincorporated Forrest County.

    • The county page also states that Forrest County has stormwater, floodplain development, and subdivision ordinances.
    • This claim does not determine whether an incorporated municipality within Forrest County issues certificates of occupancy.
    “We do not issue certificates of occupancy or administer building codes.”
  • Local zoningPresent (with conditions)

    The location of subdivisions in unincorporated Forrest County under the county subdivision ordinance.

    • The county rule requires subdivision locations to conform to zoning regulations of nearby or adjacent towns or cities.
    • The Board of Supervisors may waive that conformity requirement.
    • This claim identifies a county subdivision-location condition; it does not state that Forrest County administers the municipal zoning ordinances.
    “shall conform to the Zoning regulations of the Towns or Cities”
  • Minimum lot sizeSpecified

    Lot density in Forrest County subdivisions located outside the corporate limits of a city or town.

    • The ordinance defines a subdivision as a division into four or more lots, plats, sites, or other divisions for rental, lease, sale, conveyance, or building development, including single-family, modular, and mobile-home developments.
    • The ordinance applies outside the corporate limits of a City or Town.
    • Divisions of land for agricultural purposes are exempt when the division does not involve construction of new roads or streets.
    • Any owner may petition the Board of Supervisors for a variance from one or more requirements; the owner must show by clear and convincing evidence that the variance will not adversely impact health, safety, or general welfare.
    • The ordinance was adopted effective March 5, 2011.

    maximum number of lots, sites, or other divisions within one square acre: <= 4 lots per square acre (Subject to the Section VII variance procedure.)

    “All subdivisions shall be surveyed and laid out in such a manner that each and every lot, site or other division of land entered for rental, lease or sale shall abut upon a road or street and shall be laid out in such a manner that no more than four (4) lots, sites or other divisions of land are contained within any one (1) square acre.”
    One more reviewed finding on this topic
  • SetbacksSpecified

    Lots, sites, or other divisions of land entered for lease, rental, or sale in subdivisions located outside the corporate limits of a city or town in Forrest County.

    • The ordinance defines a subdivision as a division into four or more lots, plats, sites, or other divisions for rental, lease, sale, conveyance, or building development, including single-family, modular, and mobile-home developments.
    • The ordinance applies outside the corporate limits of a City or Town.
    • Divisions of land for agricultural purposes are exempt when the division does not involve construction of new roads or streets.
    • Any owner may petition the Board of Supervisors for a variance from one or more requirements; the owner must show by clear and convincing evidence that the variance will not adversely impact health, safety, or general welfare.
    • The ordinance was adopted effective March 5, 2011.

    minimum distance from abutting road or street right of way: >= 25 feet (Subject to the Section VII variance procedure.)

    “twenty-five (25) feet from the abutting road or street right of way.”
    One more reviewed finding on this topic
  • Who permits septicState

    On-site wastewater regulation and technical administration for Forrest County.

    • The Mississippi State Department of Health Division of On-Site Wastewater administers the statewide program and identifies Forrest County in its South Region.
    “The On-site Wastewater program develops policy and regulations and provides technical assistance to regional environmentalists in designing and inspecting Individual On-site Wastewater Disposal Systems (IOWDS), recreational vehicle campgrounds/lodging parks, septage pumpers/haulers and individual water supplies.”
  • Septic permitRequired

    On-site wastewater systems and soil/site evaluations in Forrest County.

    • The MSDH Permit/Recommendation is identified as required to obtain a water meter.
    • The source does not state that every property must use an on-site system; municipal sewer availability may affect applicability.
    “Environmentalists offer Soil and Site Evaluations that provide property owners with a Permit/Recommendation (required to obtain a water meter) and suitable for installation.”
  • Septic inspectionLimited

    Inspection of on-site wastewater installations in Forrest County.

    • MSDH conducts or provides inspection functions for individual on-site wastewater systems.
    • The residential application presents inspection as a requested option and advises selecting Yes when home financing is involved.
    • The application states that approval may also be required by mortgage companies, utilities, local municipalities, or other entities.
    “Do you wish for the Department to inspect the installation of your on-site wastewater disposal system.”
  • Mandatory utility hookupConditional

    Utilities serving subdivisions outside city or town corporate limits in Forrest County.

    • A sanitary sewer system is required when the subdivision is within 500 feet of an existing sewer main, if acceptable to the municipality.
    • If a water utility is available and within 500 feet, the developer must furnish evidence of a Public Service Commission certificate of convenience and necessity and a water-company contract.
    • The ordinance also requires evidence that arrangements for electrical power, natural gas, and telephone service have been consummated.

    distance to existing sewer main: <= 500 feet (if acceptable to the municipality) · distance to available water utility: <= 500 feet (certificate of convenience and necessity and water-company contract required)

    “Construction of sanitary sewer system if the subdivision is located within five hundred (500) feet of existing sewer main, if acceptable to the municipality.”
    One more reviewed finding on this topic
  • Agricultural exemptionAvailable (with conditions)

    Agricultural divisions of land under the Forrest County subdivision ordinance.

    • The exemption applies only when the agricultural division does not involve construction of new roads or streets.
    • The ordinance otherwise regulates subdivisions as defined in Section I(a).
    “However, divisions of land for agricultural purposes shall be exempted from the requirements of this Ordinance when such division does not involve the construction of new roads or streets.”
    3 more reviewed findings on this topic
  • Subdividing landRegulated (with conditions)

    Division of land outside the corporate limits of a city or town into four or more lots, sites, or other divisions for rental, lease, sale, conveyance, or building development.

    • Agricultural divisions are exempt when they do not involve construction of new roads or streets.
    • The land must be surveyed and platted by an engineer or land surveyor.
    • The plat and improvement plans must be submitted to the Board of Supervisors for approval.
    • The ordinance applies regardless of whether roads or rights-of-way are private or intended for county maintenance.

    minimum number of lots for subdivision definition: >= 4 lots (agricultural divisions without new-road construction are exempt)

    “a subdivision is defined as the division of a tract of, or parcel of, land into four or more lots, plats, sites or other divisions of land”
    2 more reviewed findings on this topic
  • Driveway accessLimited

    Driveways crossing drainage ditches in subdivisions governed by the county development ordinance.

    • Driveways crossing ditches must include culvert pipe drains laid to the ditch profile.
    • The minimum driveway width is 20 feet.

    minimum driveway width: >= 20 feet (driveways crossing subdivision ditches)

    “Driveways crossing said ditches shall be constructed to a minimum width of twenty (20) feet with culvert pipe drains laid to the profile of the ditch invert.”
    2 more reviewed findings on this topic
  • Building in a floodplainLimited

    Development subject to the Forrest County floodplain development ordinance.

    • The official county planning page confirms that a floodplain development ordinance exists.
    • The opened source did not provide the ordinance’s numeric limits, permit procedure, or exceptions.
    “we do have a stormwater ordinance, floodplain development ordinance and subdivision ordinance.”
    One more reviewed finding on this topic
    • Limited — Development in unincorporated Forrest County subject to the county floodplain development ordinance.
      “Prior to any development (small or large), contact our office to ensure you are in compliance with the county’s ordinances. We do not issue certificates of occupancy or administer building codes. However, we do have a stormwater ordinance, floodplain development ordinance and subdivision ordinance.”
  • Permit feesVariable (with conditions)

    County Engineer inspection costs for subdivision roads and streets in unincorporated Forrest County.

    • The developer bears the inspection costs.
    • The amount is determined by the County Engineer and approved by the Board of Supervisors.
    “The developer shall bear the costs of said inspections as determined by the County Engineer and approved by the Board of Supervisors.”
  • Permit processPartial

    Forrest County stormwater permitting for development in the county.

    • For land disturbance from 0 to 0.9 acre, no permit or SWPPP is currently required, but notification to the Planning Department is required.
    • For 1 to 5 acres disturbed, a county stormwater permit, Notice of Intent, and SWPPP must be submitted to the Forrest County Planning Department.
    • For more than 5 acres disturbed, a permit, SWPPP, and CNOI must be submitted to MDEQ, with a copy to the county planning department.
    • The source addresses stormwater permitting only, not all county permits.

    land disturbance threshold: <= 0.9 acre (notification required) · land disturbance range: 1-5 acres (county permit, CNOI, and SWPPP required) · land disturbance threshold: > 5 acres (MDEQ permit, SWPPP, and CNOI required; copy to county)

    “1-5 Acres of land disturbed: Permit required from Forrest County Planning Department”
    2 more reviewed findings on this topic
    • Partial — County development review in unincorporated Forrest County.
      “Prior to any development (small or large), contact our office to ensure you are in compliance with the county’s ordinances.”
    • Partial — County development review administered through the Forrest County Planning Department.
      “Prior to any development (small or large), contact our office”
  • Building permitNot required

    The Forrest County Planning Department states it does not issue certificates of occupancy or administer building codes; the county regulates development through stormwater, floodplain, and subdivision ordinances rather than county building permits in unincorporated areas.

    Forrest County, MS Planning Department ↗Scouted from the county site, not yet independently re-checked

Mississippi rules that apply here

  • Owner-builder exemptionAvailable (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.

    • The exemption concerns the licensing chapter for residential builders and remodelers; it does not by itself establish exemption from a locally required building permit or inspection.
    • The same official legislative text also states that related exemptions have limits on permit applications or residences constructed within a one-year period, depending on the subsection and circumstances.
    “(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;”
  • 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”
    3 more reviewed findings on this topic
    • Partial — Uniform building-code adoption by Mississippi counties and municipalities, including Forrest County unless it timely opted out.
      “all counties and municipalities must enact uniform building codes unless they opt out prior to Nov. 30, 2014.”
    • 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.”
    • 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.”
  • 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.”
  • 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.”
  • Off-grid sanitationLimited

    Sanitation for properties in Forrest County without public sewer.

    • Mississippi does not recognize gray water as a separate disposal category.
    • All wastewater must be piped into a central sewer system or septic system for proper disposal.
    • Gray water may not be discharged on the ground, in ditches, or in bodies of water.
    • A local authority may allow temporary use of a port-a-potty until septic installation, but MSDH does not have jurisdiction over that temporary option.
    “Mississippi does not recognize gray water.”
    One more reviewed finding on this topic
  • 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.”
  • 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”
    One more reviewed finding on this topic
  • 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.”

Inside cities and towns in Forrest County

Municipal rules found while researching the county. They apply inside that city or town, not to unincorporated land.

  • Local zoningPresent (with conditions)

    Zoning matters, zoning changes, use permits, and variances within the City of Hattiesburg, including the portion of the city located in Forrest County.

    • The City of Hattiesburg Planning Commission is advisory and was created by the Mayor and City Council.
    • Applications may involve zoning changes, use permits, or variances.
    • This claim does not apply to unincorporated Forrest County.
    “The Hattiesburg Planning Commission has was created by the Mayor and City Council as an advisory committee to address zoning matters and is vested with the rights and responsibilities as provided in Mississippi Code Annotated Section 17-1-17 (1972), and established in the City of Hattiesburg Ordinance No. 1490.”
    3 more reviewed findings on this topic
    • Present (with conditions) — Land, uses, facilities, structures, and development within the City of Hattiesburg.
      “New land uses or development within the City will not be allowed to proceed without first obtaining approval under the provisions of the Land Development Code.”
    • Present (with conditions) — Zoning within the City of Petal.
      “Except as hereby expressly changed and amended, the aforesaid Comprehensive Zoning Ordinance No. 1979 (42) of the City of Petal, Mississippi, shall be and remain in full force.”
    • Present (with conditions) — Zoning matters and land-use development within the City of Petal, including the portion of the city located in Forrest County.
      “The City of Petal Building Department services the public in several areas, including: Building Inspections and Permits Code Enforcement Planning Commission Zoning Electrical and Plumbing Boards.”
  • Zoning districtsPublished

    Zoning districts within the City of Hattiesburg.

    • The official zoning map is incorporated into the Land Development Code.
    “All areas within the zoning jurisdiction of Hattiesburg are divided into zoning districts.”
  • Living in an RVProhibited

    Use of campers, boats, trailers, or recreational vehicles for living, sleeping, or housekeeping purposes on any lot in Hattiesburg residential zones and other covered areas.

    • The rule is a Hattiesburg municipal rule and does not establish the rule for unincorporated Forrest County.
    • The same section permits only one such vehicle or piece of equipment on a residential lot if it is no longer than 17 feet; longer vehicles are prohibited; no such vehicle or equipment may be stored in a required front or side yard.

    maximum vehicle length: <= 17 feet (Longer vehicles are prohibited.)

    “No such equipment shall be used for living, sleeping, or housekeeping purposes on any lot.”

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 Forrest County, especially unincorporated areas.
  • Minimum dwelling size — Minimum dwelling size in Forrest County.
  • Lot coverage — Lot coverage in Forrest County.
  • Building height — Building height in Forrest County.
  • Camping on your land — Temporary camping on private land in Forrest County.
3 more unanswered
  • Tiny homes
  • 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 Forrest County, Mississippi

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

Forrest County scores 64/100 on the Bolthole Index, a strong county profile. Its strengths: manageable long-term carry cost and low administrative friction for a quiet rural property. Watch-outs: about 148,839 people within a 30-minute drive and a weaker property-autonomy legal backdrop.

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

Forrest County does not require a county building permit for a home in unincorporated areas. Onsite septic is permitted by Mississippi State Department of Health (MSDH), Division of On-Site Wastewater. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Forrest County, Mississippi?

Land in Forrest County runs about $5,040 per acre, based on the latest county data.

What is the water situation in Forrest County?

Forrest County gets about 62.1" of rain a year, with severe drought in roughly 6.1% of years.

How remote is Forrest County?

A representative private-land location has about 148,839 people within a 30-minute drive and 3,113,646 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.

How Forrest compares in Mississippi

Compare side-by-side →See all 82 Mississippi counties ranked →