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Adams County, Mississippi Building Permit Guide

Natchez is the only city in Adams County and permits construction through its Office of Inspections; the rest of the county is unincorporated and answers to the Board of Supervisors at 314 State Street.

Authority: Adams County Board of Supervisors (unincorporated area)Natchez: City Office of Inspections, 601-445-7512Phone: 601-442-2431
County offices
314 State Street, Natchez
County Administrator
601-445-7934
Flood maps
County and Natchez in the NFIP; maps effective June 16, 2011
Septic
Mississippi State Department of Health

If the site is inside Natchez, building and trade permits come from the City’s Office of Inspections at City Hall, 124 South Pearl Street (601-445-7512). Everywhere else in Adams County is unincorporated, where state law requires the county to require a construction permit; start with the Board of Supervisors’ office at 314 State Street (601-442-2431) or the County Administrator (601-445-7934).

Who issues permits in Adams County?

The Census Bureau counts one incorporated place in Adams County, the City of Natchez (14,880 residents in 2025). The City’s permits cover only property inside its limits; the unincorporated county is governed by the five-member Board of Supervisors.

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Adams County permit contacts
Area or needOffice
City of NatchezOffice of Inspections (Building Official), City Hall, 124 South Pearl Street, Natchez, MS 39120; 601-445-7512
Natchez zoning, site plans and historic district workCity Planning and Zoning, City Hall; 601-445-7518
Unincorporated Adams CountyBoard of Supervisors, 314 State Street, Natchez, MS 39120; 601-442-2431
County administrationCounty Administrator, 314 State Street; 601-445-7934
Chancery Clerk115 South Wall Street, Natchez; 601-446-6684
Septic systems where there is no sewerMississippi State Department of Health; wastewater call center 1-855-220-0192

Miss. Code §19-5-9(11), as amended by House Bill 1163 of 2022, requires every county to make a permit a condition of construction in its unincorporated area, and the permit has to show the contractor’s material purchase certificate or taxpayer number and the contractor’s licence number. Adams County does not publish its permit form, fee or building code online, so ask the Board of Supervisors’ office or the County Administrator what the county requires before work starts.

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Steps for a project in Adams County

1. City or county?

Confirm whether the parcel is inside the Natchez city limits; if so, the City’s Office of Inspections and Planning Department handle the project.

2. Historic district check in Natchez

Exterior work in a Natchez historic district needs a Certificate of Appropriateness application through City Planning before the building permit.

3. Ask the county for unincorporated land

Call the Board of Supervisors’ office (601-442-2431) or the County Administrator (601-445-7934) about the county permit, its fee and any flood zone rules for the site.

4. Septic approval

Where there is no public sewer, apply to the Mississippi State Department of Health for the onsite wastewater system.

5. Contractor details

Have the contractor’s material purchase certificate or taxpayer number and licence number ready for the permit.

Flood maps and septic systems in Adams County

Flood zones: FEMA’s Community Status Book lists both Adams County and the City of Natchez as participating in the National Flood Insurance Program, each with flood insurance rate maps effective June 16, 2011. Inside Natchez, development in a mapped flood zone goes through the City’s floodplain rules; outside the city, ask the county about its floodplain requirements before you design or place a building in a mapped flood zone.

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Septic systems: the Mississippi State Department of Health permits individual onsite wastewater systems. Applications can be filed online, by fax, by mail or by e-mail to wastewater@msdh.ms.gov, and the fee is paid through a link the Department e-mails once the file is complete.

Mississippi building code

Some work is exempt statewide: farm structures once the owner files an affidavit (Mississippi Code §17-2-7), and manufactured housing built to federal standards, certain industrial and utility facilities, buildings on non-public fairgrounds and hunting or fishing camps with an owner’s affidavit (§17-2-9). None of these exemptions reaches floodplain rules. The state minimum codes are the Mississippi Building Code and Mississippi Residential Code, the residential code drawn from the 2021 International Residential Code. How building codes apply in Mississippi

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Official Adams County permit resources

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Adams County permit FAQs

Who issues building permits in Natchez?

The City of Natchez Office of Inspections at City Hall, 124 South Pearl Street (601-445-7512).

Who do I call about a permit outside Natchez?

The Adams County Board of Supervisors’ office at 314 State Street (601-442-2431) or the County Administrator (601-445-7934). State law requires the county to require a permit for construction in its unincorporated area.

Is Adams County in the National Flood Insurance Program?

Yes. FEMA lists Adams County and Natchez as participating communities, with flood maps effective June 16, 2011.

Who approves septic systems in Adams County?

The Mississippi State Department of Health, through its On-Site Wastewater program.

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Alliance Permitting is a permit documentation and submission company in Mississippi. We prepare your paperwork, file it correctly and coordinate with the permitting authority through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

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This guide is provided by Alliance Permitting for general information about Adams County permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.