We could not confirm Leake County, Mississippi's residential building-permit process for unincorporated land, so ask the County Administrator before starting work.1 Unincorporated Leake County requires no county zoning approval, but municipal zoning and building-code rules can differ.2 The Mississippi State Department of Health remains the septic authority throughout Leake County.3
At a glance
- Building permit
- County residential requirement and process not confirmed1
- Zoning
- No county zoning ordinance in unincorporated areas; municipal rules can differ2
- Septic
- MSDH handles septic permits, site evaluations and inspections countywide34
- RV living
- No county zoning restriction in unincorporated areas; other requirements still apply5
- Tiny home
- No county zoning restriction in unincorporated areas; construction rules remain unconfirmed51
- Owner-builder
- State residential-builder licensing exemption is available, but permits may still apply6
- Private well
- Groundwater permit required at the stated casing threshold; some exclusions apply7
Who to call
Building permits
County contact for questions about an unincorporated parcel when no building-permit office or process is published
PO Box 595, Carthage, MS 39051
Planning & zoning
County-hosted planning record for zoning and local building-code status
Septic permits
Mississippi State Department of Health Division of On-Site Wastewater
On-site wastewater applications, water-meter wastewater approval and application assistance for Leake County
570 East Woodrow Wilson Drive, Jackson, MS 39216
Roads & driveways
County-road access and right-of-way questions
312 C.O. Brooks, Carthage, MS 39051
Contact details are copied from each office’s official page and were checked against it on October 7, 2026.
Off-grid gear
Going off-grid in Leake County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Leake County, Mississippi?
We could not confirm whether Leake County requires a residential building permit in unincorporated areas or has a published building-inspection or certificate-of-occupancy process.1 Mississippi's statewide framework says counties and municipalities must enact uniform building codes unless they opted out before the stated deadline, but that framework does not establish Leake County's current adoption status.8 The county-hosted planning record says only that the City of Carthage adopted a building code; it does not say Leake County adopted one.9
Before construction in unincorporated Leake County, give the County Administrator the parcel number, site address and project description and ask specifically about a residential building permit, trade permits, inspections and a certificate of occupancy. The official county directory lists the County Administrator at 601-267-8002 and PO Box 595, Carthage, MS 39051.10 For land inside Carthage, ask the city about its building-permit process and zoning approval; MSDH still handles the septic permit.93
Who handles building permits in Leake County, and how do you reach them?
Leake County does not publish a building department or residential building-permit application that we could confirm, so the practical county starting point is the County Administrator.1 The county directory lists that office at 601-267-8002, jbrown@leakecountyms.org and PO Box 595, Carthage, MS 39051.10 Ask the office to identify who handles residential building permits, electrical permits, plumbing permits, mechanical permits, floodplain approval and certificates of occupancy for the exact parcel before paying a contractor or ordering a structure.
Mississippi building-permit requirements can vary by location, and state guidance says city or county approval may apply to business construction and land development.11 A person building or improving that person's own residence may qualify for Mississippi's residential-builder licensing exemption, but the exemption does not remove any required building permit, septic permit or floodplain approval.6 For county-road access questions, Leake County Road and Bridge is listed at 601-267-4123 and 312 C.O. Brooks, Carthage, MS 39051.12
Does Leake County have zoning?
Unincorporated Leake County has no county zoning ordinance, so no county zoning approval is required there; the City of Carthage has adopted municipal zoning.2 Ask the relevant municipality about zoning approval and its building-permit process for land inside city limits, while septic permits remain with MSDH throughout Leake County.133 The absence of county zoning does not remove septic, floodplain, road-access, utility, private-covenant or building requirements.
Because there is no county zoning ordinance, unincorporated Leake County has no county zoning minimum dwelling size, minimum lot size, setback, lot-coverage limit or building-height limit.1415161718 Septic and floodplain setbacks and non-zoning building or fire requirements may still apply.1618 Leake County also has no subdivision ordinance for unincorporated land, but Carthage has its own subdivision ordinance.19
How do septic permits work in Leake County?
The Mississippi State Department of Health Division of On-Site Wastewater is the septic authority for individual systems throughout Leake County.3 File a complete application with the property's legal description and a plot plan showing buildings and improvements; MSDH then performs the soil and site evaluation and issues its Permit/Recommendation.20 A Notice of Intent plus Final Approval currently costs $197.50, with a processing fee for online payment.21 Apply online or call the Wastewater Call Center at 1-855-220-0192 for help.22
Start before fixing the house location: only 1% of mapped Leake County soils avoid severe limitations for a conventional drain field.23 For a new system, the certified installer must contact MSDH 24 hours before construction to schedule inspection.4 A qualifying two-acre exemption has narrower final-approval requirements, but another listed authority or covenant may still require approval.4 For a new individual septic system, present the MSDH Permit/Recommendation to the water utility to receive a water meter; that fact does not establish public-sewer availability or a countywide sewer-connection rule.24
Can you live in an RV or tiny home on your land in Leake County?
Unincorporated Leake County has no county zoning restriction on RV occupancy, temporary camping, tiny-home occupancy or manufactured-home occupancy.5 That answer applies only to county zoning: septic, utility, floodplain, building, private-covenant and road-access requirements can still affect a parcel or project. The county residential building-permit and inspection process remains unconfirmed, so ask the County Administrator before placing or constructing a dwelling.110
Municipal zoning can differ, including in Carthage, but MSDH remains the septic-permit authority for individual systems throughout Leake County.133 Any occupied house, trailer, manufactured home or other residential structure that generates wastewater needs an acceptable sewage solution through the MSDH process.25 Mississippi does not recognize gray water as a separate discharge category, so off-grid plans must route all wastewater to an approved sewer or septic system.26 For a new individual septic system, the MSDH Permit/Recommendation is also needed to obtain a water meter.24
Building a home in Leake County: the steps, in order
First, determine whether the parcel is in unincorporated Leake County or a municipality, because Carthage has its own zoning ordinance and building code.9
Second, call the County Administrator at 601-267-8002 to confirm the building-permit authority, inspections, floodplain review and any occupancy approval for an unincorporated parcel.10
Third, file the MSDH wastewater application with the legal description and plot plan before locking in the house, driveway and well locations.27 Have the certified installer schedule the required inspection before septic construction begins.28
Fourth, contact Leake County Road and Bridge about access from a county road; its published number is 601-267-4123.12 A new or altered driveway connecting to a Mississippi state highway requires an MDOT permit.29
Fifth, confirm whether the statewide owner-builder licensing exemption fits the project without assuming it waives building, septic, floodplain or other approvals.6
Finally, obtain every approval the responsible offices identify before construction or occupancy.
What to check before you buy land in Leake County
Put wastewater feasibility near the top of the due-diligence list because only 1% of mapped Leake County soils are rated without severe limits for a conventional drain field.23 The county averages 58.4 inches of precipitation annually, which makes drainage, wet-season access and house-pad placement worth checking on the ground.30 About 79.4% of the land has a slope of 15% or less, but a parcel survey and site visit still matter.31
Confirm legal access and driveway approval with the road owner; Leake County Road and Bridge handles county-road questions, while MDOT requires permits for new or altered state-highway driveways.1229 Ask the County Administrator which local floodplain process applies because the available state floodplain claim covers state-owned property, not an ordinary private parcel.32 Leake County's effective property-tax rate is 0.7%, and the median property-tax bill is $775 per year.3334
Watch-outs
- Unincorporated Leake County's lack of zoning leaves RV and tiny-home occupancy unrestricted by county zoning, but septic, floodplain, building, utility and private-covenant requirements can still apply.5
- Septic feasibility can change the usable building area because only 1% of mapped soils avoid severe conventional drain-field limitations.23
- Carthage has its own zoning ordinance and building code, so county answers do not replace city review for property inside Carthage.9
Sources
- Miss. Code Ann. §19-5-9(11) (2026 county census)
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- On-Site Wastewater - Mississippi State Department of Health, quoted and re-checked
- Notice of Intent: New Individual On-site Wastewater Disposal System, quoted and re-checked
- Mississippi law on county zoning and building authority
- Mississippi Code - Residential Builders and Remodelers Act, quoted and re-checked
- Guidelines for Securing the Services of a Water Well Driller (Mississippi statewide rule), quoted and re-checked
- Mississippi Uniform Building Codes (Mississippi statewide rule), quoted and re-checked
- Leake County planning record (leakecountyms.org)
- Leake County Administrator (leakecountyms.org)
- Start Your Business in Mississippi — County and City Permits (Mississippi statewide rule), quoted and re-checked
- Leake County Road and Bridge (leakecountyms.org)
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- MEMA District 6 Regional Hazard Mitigation Plan 2021, Annex E: Leake County, quoted and re-checked
- Notice of Intent: New Individual On-site Wastewater Disposal System, quoted and re-checked
- Wastewater Frequently Asked Questions, quoted and re-checked
- Mississippi State Department of Health Division of On-Site Wastewater (msdh.ms.gov)
- 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
- Notice of Intent: New Individual On-site Wastewater Disposal System, quoted and re-checked
- On-Site Wastewater - Mississippi State Department of Health, quoted and re-checked
- Wastewater Frequently Asked Questions, quoted and re-checked
- On-Site Wastewater, quoted and re-checked
- Notice of Intent: New Individual On-site Wastewater Disposal System, quoted and re-checked
- Mississippi Access Management Guide (Mississippi statewide rule), quoted and re-checked
- Annual precipitation: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Mississippi Administrative Code — State Property Floodplain Regulations (Mississippi statewide rule), quoted and re-checked
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 7, 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.