Bolthole Index

Attala County, Mississippi

Building permits, zoning and septic rules in Kosciusko, Mississippi

Kosciusko, Mississippi requires a building permit before erecting, structurally altering, moving or improving a building.1 Inside city limits in Attala County, the city sets zoning and requires site-built homes of at least 700 square feet.23 MSDH handles onsite wastewater evaluations, while Kosciusko also imposes private-sewage restrictions and public-sewer connection requirements.456

At a glance

Building permits
Required before covered construction or alterations; city Building Official is the contact17
Zoning
City zoning applies; confirm the parcel’s district on the Official Zoning Map28
Septic permits
MSDH handles onsite wastewater; city private-sewage and sewer-connection rules also apply956
RV living
Residential use only in an approved recreational vehicle park10
Tiny homes
Mobile tiny-house residences only in approved RV parks; site-built homes need at least 700 square feet11
Owner-builder
Homeowners must personally perform the work and obtain required building permits and inspections12

Who to call

Building permits

Kosciusko Building Official

City building permits and zoning-code administration

Septic permits

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

On-site wastewater applications, permits or recommendations, site and soil evaluations, and private-well sampling

1-855-220-0192

[email protected]

570 East Woodrow Wilson Drive, Jackson, MS 39216

Online permits →

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

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Do you need a building permit in Kosciusko, MS?

Kosciusko requires a building permit before a structure is erected, structurally altered, moved or improved.1 Separate electrical, plumbing/gas and HVAC/mechanical permits are required in the circumstances covered by the city’s permit rules.1 A Kosciusko homeowner can obtain a permit for personally performed work, but must still obtain the required inspections.12 New, reconstructed, altered or enlarged buildings also need a certificate of occupancy before use; apply for that certificate with the building permit and request issuance in writing after compliant completion.13

Who handles building permits and zoning in Kosciusko?

Contact the Kosciusko Building Official about building permits and zoning for a project inside city limits.7 Ask the Building Official to confirm the proposed use against the parcel’s zoning district before submitting building plans, because uses, building bulk, yards and density must conform to district rules.2 Building approval does not replace the onsite-wastewater process: MSDH provides soil and site evaluations, while Kosciusko separately regulates private sewage disposal and sewer connection.1456

Does Kosciusko have zoning, minimum lot sizes and setbacks?

Kosciusko has city zoning, and the Official Zoning Map controls the current district designation for a parcel.2 In the A-I General Agricultural/Residential District, a one-family dwelling needs a lot of at least 43,560 square feet fronting a dedicated public street.15 A-I dwelling setbacks are at least 40 feet front, 15 feet side and 25 feet rear.16 In the R-1 Single-Family Residential District, the minimum dwelling lot is 12,000 square feet, with setbacks of 40 feet front, 10 feet side and 25 feet rear; corner-lot rules also apply.1718 These district minimums do not override the city’s separate 15,000-square-foot minimum for a subsurface absorption system permit.19

How do septic permits and sewer connections work in Kosciusko?

MSDH requires a Permit/Recommendation for installation of a new onsite wastewater disposal system and to obtain a water meter.9 Kosciusko additionally requires private-system type, capacity, location and layout to comply with state health recommendations, and prohibits a subsurface absorption system permit on a lot smaller than 15,000 square feet.519 Where public sanitary sewer is available within 250 feet and sewage can flow to it by gravity, Kosciusko requires an owner-paid connection within 60 days after official notice.6 Existing private sewage facilities must be abandoned and filled when public sewer becomes available.6 Ask the Building Official and MSDH to resolve the city’s additional private-system application and inspection requirements before buying a lot without sewer.5714

Can you live in an RV or tiny home in Kosciusko?

Kosciusko allows motor vehicles, travel trailers, RVs, mobile tiny houses and motor coaches to be used as residences only within an approved recreational vehicle park.10 Do not plan to use an RV on an ordinary residential lot as housing while building: the city’s residential-use rule limits that option to approved parks.10 Kosciusko also prohibits tents, tepees, yurts, huts and similar temporary camping structures as residences or living quarters.20 Site-built homes must contain at least 700 square feet and meet the applicable lighting, ventilation and occupancy requirements; storage buildings cannot be used for residential habitation.11

What are the steps to build a home in Kosciusko?

  1. ask the Kosciusko Building Official to confirm the parcel’s zoning district and whether the proposed house and site layout comply.72
  1. resolve wastewater: check public-sewer availability and the city’s connection requirements, or contact MSDH for an onsite-wastewater evaluation and required paperwork.69
  1. Obtain the building permit before covered work begins and arrange the separate trade permits required for the project.1
  1. Apply for the certificate of occupancy with the building permit; after compliant completion, request the certificate in writing before occupying the home.13

What should you check before buying land in Kosciusko?

For an address outside city limits, use the Attala County guide for the county’s answer; Kosciusko’s zoning ordinance applies inside the city.2 For a city lot without public sewer, compare the district’s lot minimum with the separate minimum for a subsurface absorption system before committing to a house plan.1719 Ask the Building Official about accessory dwellings, agricultural building-permit exemptions and residential driveway approvals, which we could not confirm.7 Mississippi generally requires a groundwater withdrawal permit for wells with surface casing diameters of 6 inches or more, subject to exclusions; that statewide threshold does not settle additional city well requirements.21

Watch-outs

  • Kosciusko’s R-1 minimum dwelling lot is 12,000 square feet, but the city prohibits a subsurface absorption system permit below 15,000 square feet.1719
  • An owner-builder arrangement in Kosciusko still requires building permits and inspections, and the homeowner must personally perform the work.12
  • We could not confirm the complete city private-sewage application or inspection process; ask the Kosciusko Building Official and MSDH before relying on septic for a purchase.714

Sources

  1. Code of Ordinances, section 6-11, Permit requirements (Kosciusko), quoted and re-checked
  2. Official Zoning Ordinance of Kosciusko, Mississippi (Kosciusko), quoted and re-checked
  3. 2024 Ordinance No. 692 – Habitable Spaces (Kosciusko), quoted and re-checked
  4. On-Site Wastewater, quoted and re-checked
  5. Code of Ordinances, section 14-43, Privies, septic tanks and cesspools prohibited generally (Kosciusko), quoted and re-checked
  6. Code of Ordinances, section 14-44, Connection to public sanitary sewer after notice (Kosciusko), quoted and re-checked
  7. Kosciusko Building Official (kosciusko.ms)
  8. Official Zoning Ordinance of Kosciusko, Mississippi (Kosciusko), quoted and re-checked
  9. On-Site Wastewater, quoted and re-checked
  10. kosciusko.ms (Kosciusko), quoted and re-checked
  11. kosciusko.ms (Kosciusko), quoted and re-checked
  12. Code of Ordinances, section 6-11, Permit requirements (Kosciusko), quoted and re-checked
  13. Official Zoning Ordinance of Kosciusko, Mississippi (Kosciusko), quoted and re-checked
  14. Mississippi State Department of Health, Division of On-Site Wastewater (msdh.ms.gov)
  15. kosciusko.ms (Kosciusko), quoted and re-checked
  16. Official Zoning Ordinance of Kosciusko, Mississippi (Kosciusko), quoted and re-checked
  17. kosciusko.ms (Kosciusko), quoted and re-checked
  18. kosciusko.ms (Kosciusko), quoted and re-checked
  19. Code of Ordinances, section 14-43, Privies, septic tanks and cesspools prohibited generally (Kosciusko), quoted and re-checked
  20. 2024 Ordinance No. 692 – Habitable Spaces (Kosciusko), quoted and re-checked
  21. Guidelines for Securing the Services of a Water Well Driller (Mississippi statewide rule), 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.

Answers from the rulebook for Kosciusko

Kosciusko’s own rules

  • Building permitRequired

    Structures or buildings structurally altered, erected, moved, or improved inside Kosciusko city limits.

    • A building permit must be obtained before work begins.
    • A separate permit is required for electrical, plumbing/gas, and HVAC/mechanical work in the circumstances listed in section 6-11.
    • A homeowner may secure a permit only if the homeowner performs the work and has the required inspections.
    “It shall be a violation of these regulations for any person to change or permit the change in the use of land or buildings or structures or to erect, alter, move or improve any building or structure until a building permit has been obtained under the following conditions.”
  • Owner-builder exemptionAvailable (with conditions)

    A homeowner performing work on the homeowner's own property inside Kosciusko city limits.

    • The homeowner must perform the work personally and obtain all required inspections.
    • The exemption is from contractor-permit-holder application requirements, not from permits or inspections.
    “A homeowner may obtain a permit to work on his/her property. The homeowner must do the work and must have all the required inspections.”
  • Certificate of occupancyRequired

    Buildings erected, reconstructed, altered, or enlarged inside Kosciusko city limits.

    • The certificate is applied for with the building permit.
    • It is issued after written request following completion in conformity with the regulations.
    • A temporary certificate may last no more than six months and requires safety restrictions.
    • A change-of-use request must be made in writing at least ten days in advance.
    • No fee is charged for a certificate of occupancy.
    “No vacant land shall be occupied or used, except for agricultural uses, and no building hereafter erected, reconstructed, altered, or enlarged, shall be occupied or used until a certificate of occupancy shall have been issued by the Building Inspector.”
  • Local zoningPresent

    All land inside Kosciusko city limits subject to the city zoning ordinance.

    • The Official Zoning Map controls current zoning status.
    • Uses, building bulk, yards, density, and permits must conform to the district regulations.
    “This Ordinance shall be known as the Official Zoning Ordinance of Kosciusko, Mississippi and may be so cited, and further referenced elsewhere as “Zoning Ordinance” and herein as “the Ordinance” or “this Ordinance”; shall imply the same wording as the full title.”
  • Zoning districtsPublished

    Zoning districts inside Kosciusko city limits.

    • The ordinance lists A-I, R-1, R-2, R-3, R-4, PUD, C-1 through C-4, I-1, I-2, and F-1 districts.
    • The Official Zoning Map is incorporated into the ordinance and is the final authority for current zoning status.
    “In order to regulate and restrict the location of trades and industries and the location of buildings erected, reconstructed, altered or enlarged for specified uses, to regulate and limit the height and bulk of buildings hereafter erected, reconstructed, altered or enlarged; to regulate and determine the area of yards and other open spaces and to regulate and limit the density of population, the City of Kosciusko is hereby divided into districts of which there shall be thirteen (13) as follows:”
  • Minimum dwelling sizeSpecified

    All homes inside Kosciusko city limits under Ordinance No. 692.

    • The ordinance requires homes to be site built.
    • The requirement operates with the International Property Maintenance Code's lighting, ventilation, and occupancy limits.

    minimum home size: >= 700 square feet

    “All homes are to be site built with a minimum of seven hundred square feet and follow the International Property Maintenance Code for lighting, ventilation, and occupancy limits of each dwelling unit.”
  • Minimum lot sizeDistrict specific (with conditions)

    One-family dwellings in the A-I General Agricultural/Residential District.

    • The parcel must front on a dedicated public street.
    • Minimum lot width at the building setback line is 100 feet.

    minimum lot area: >= 43560 square feet (one acre)

    “Each one-family dwelling in the A-I District, together with its accessory buildings, hereafter erected, shall be located on a parcel having an area of not less than one (1) acre or 43,560 square feet and shall front on a dedicated public street.”
    One more reviewed finding on this topic
    • District specific (with conditions) — One-family dwellings in the R-1 Single-Family Residential District.
      “Lot Area A minimum of twelve thousand (12,000) square feet.”
  • SetbacksDistrict specific (with conditions)

    One-family dwellings in the A-I General Agricultural/Residential District.

    • Corner-lot side-yard rules apply.
    • Public and semi-public buildings have 50-foot side and rear clearances.

    front setback: >= 40 feet · side setback: >= 15 feet · rear setback: >= 25 feet

    “Front Yard - The front yard at the building setback line shall be a minimum of forty (40) feet from any existing or proposed right-of-way line of any street or road as shown on the Kosciusko Major Thoroughfares Plan. Side Yard - There shall be a minimum side yard on each side of any structure of fifteen (15) feet measured from the side lot line to the nearest building or structure. Rear Yard -There shall be a minimum rear yard building setback of not less than twenty-five (25) feet.”
    One more reviewed finding on this topic
    • District specific (with conditions) — One-family dwellings in the R-1 Single-Family Residential District.
      “Front: setback a minimum of not less than forty (40) feet. Rear: setback a minimum depth of not less than twenty-five (25) feet. Side: setback a minimum of not less than ten (10) feet on each side.”
  • Lot coverageDistrict specific (with conditions)

    Buildings, including accessory buildings, in the A-I General Agricultural/Residential District.

    • All setback requirements must also be met.

    maximum lot coverage: <= 25 percent

    “Buildings, including accessory buildings, shall not cover more than twenty-five (25) percent of the area of any lot and meet all setback requirements.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Buildings, including accessory buildings, in the R-1 Single-Family Residential District.
      “Buildings including accessory buildings shall not cover more than twenty-five percent of the area of any lot.”
  • Building heightDistrict specific (with conditions)

    Buildings in the A-I General Agricultural/Residential District.

    • Accessory buildings are limited to 20 feet and two stories.
    • Barns, silos, and other farm structures may exceed the restriction if located 100 feet from any lot line.

    maximum principal-building height: <= 45 feet (farm structures meeting the stated 100-foot setback) · maximum accessory-building height: <= 20 feet

    “No building shall exceed forty-five (45) feet in height, and accessory buildings shall not exceed twenty (20) feet, measured from finished grade. No building shall be more than two and one-half stories, and accessory buildings shall not be more than two stories. Barns, silos, or other farm structures which require greater height in order to function properly are expressly exempt from this height restriction where such structure is located a distance of one hundred (100) feet from any lot line.”
    One more reviewed finding on this topic
    • District specific (with conditions) — Buildings in the R-1 Single-Family Residential District.
      “Height Regulations No building shall exceed thirty-five (35) feet in height.”
  • Living in an RVLimited

    Use of motor vehicles, travel trailers, recreational vehicles, mobile tiny houses, or motor coaches as residences inside Kosciusko city limits.

    • Residential use is allowed only within an approved recreational vehicle park.
    “No motor vehicle or trailer including, but not limited to, travel trailers, recreational vehicles, mobile tiny houses, and/or motor coaches, shall be used as a residence or as living quarters except within and approved recreational vehicle park.”
  • Camping on your landLimited

    Use of tents, tepees, yurts, huts, recreational equipment, and similar temporary camping structures as residences or living quarters inside Kosciusko city limits.

    • The ordinance prohibits use as a residence or living quarters; it does not establish a general camping-permit regime.
    “No recreational equipment, including, but not limited to: tents, tepees, yurts, and/or huts, shall be used as a residence or as living quarters.”
  • Tiny homesLimited

    Tiny-home occupancy inside Kosciusko city limits.

    • Mobile tiny houses may not be used as residences except within an approved recreational vehicle park.
    • Site-built homes must meet the 700-square-foot minimum and applicable property-maintenance requirements.
    • Storage buildings may not be used for residential habitation.

    minimum area for site-built homes: >= 700 square feet (The ordinance states all homes are to be site built.)

    “All homes are to be site built with a minimum of seven hundred square feet and follow the International Property Maintenance Code for lighting, ventilation, and occupancy limits of each dwelling unit. No storage building or like structure of similar build is allowed for residential habitation.”
  • Who permits septicMixed (with conditions)

    Private sewage disposal systems inside Kosciusko city limits.

    • Kosciusko city regulates prohibition, connection, lot-size, and abandonment requirements.
    • The system's type, capacity, location, and layout must comply with recommendations of the state board of health.
    “The type, capacities, location and layout of a private sewage disposal system shall comply with all recommendations of the board of health of the state.”
  • Off-grid sanitationLimited

    Private sewage disposal and other off-grid sanitation inside Kosciusko city limits.

    • Privies, septic tanks, cesspools, and other sewage-disposal facilities are generally unlawful except as provided by the private sewage disposal provisions.
    • Private systems must meet state board-of-health recommendations.
    • No permit may issue for subsurface absorption systems on lots under 15,000 square feet.
    • Connection to public sewer is required when the section 14-44 conditions are met.

    minimum lot area for subsurface absorption permit: >= 15000 square feet

    “Except as hereinafter provided, it shall be unlawful to construct or maintain any privy, privy vault, septic tank, cesspool, or other facility intended or used for the disposal of sewage.”
  • Mandatory utility hookupSewer (with conditions)

    Occupied houses, buildings, and properties inside Kosciusko city limits where gravity connection to a public sanitary sewer is available within 250 feet.

    • The owner must connect within sixty days after official notice.
    • The connection is at the owner's expense.
    • Existing private sewage facilities must be abandoned and filled when public sewer becomes available.

    distance to public sanitary sewer: <= 250 feet (The property must be connectable so sewage will flow by gravity.) · connection deadline after official notice: 60 days

    “within two hundred fifty (250) feet of a line of public sanitary sewer now in existence or afterward constructed to which such house, building or property may be connected so that sewage will flow therefrom and into such sewer line by gravity, is hereby required at such owner's expense to install suitable toilet facilities therein and to connect such facilities directly with said line of public sanitary sewer in accordance with the provisions of this article within sixty (60) days after date of official notice so to do.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Kosciusko or Attala County directly.

  • Accessory dwellings — Accessory dwelling units inside Kosciusko city limits.
  • Septic permit — Private sewage disposal systems inside Kosciusko city limits.
  • Septic inspection — Private sewage disposal systems inside Kosciusko city limits.
  • Well permit — Private water wells inside Kosciusko city limits.
  • Agricultural exemption — Agricultural construction or land uses inside Kosciusko city limits.
2 more unanswered
  • Driveway access
  • 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.

Unanswered questions are usually a sign that Kosciusko publishes no rule on the point, not that none exists. Attala County’s page lists the county offices to call.

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