Unincorporated Clark County, Ohio requires building permits for covered work, issued by the county Building Department, which also covers New Carlisle and the listed villages1. Zoning depends on the parcel: the county zones seven townships, while German, Pike and Springfield Townships, New Carlisle, Enon and the other cities and villages zone separately2,3,4. The Clark County Combined Health District issues septic and new-well permits everywhere5,6.
Do you need a building permit in Clark County, Ohio?
Yes.
Yes. Building permits are required for covered work in unincorporated Clark County and in the listed cities and villages, although repairs and certain replacements may not need one1. Clark County lists the 2019 Residential Code of Ohio, based on the 2018 International Residential Code, for residential construction under its jurisdiction7. Submit plans, drawings and specifications before construction; work cannot begin until the building department with jurisdiction approves them10. Applicable residential projects go through a sequence of inspections that can include lot-line, footing, foundation, rough trades, framing, energy and final inspections11. A certificate of occupancy follows final inspection for projects that require one, after the listed septic, safe-water, blower-door and any applicable elevation documents are submitted12.
Who issues building permits in Clark County, Ohio, and how do you reach them?
Clark County's Building Department handles building permits for unincorporated Clark County from Community & Economic Development at 3130 East Main Street, Springfield, Ohio 45503.
Clark County's Building Department handles building permits for unincorporated Clark County from Community & Economic Development at 3130 East Main Street, Springfield, Ohio 4550311. The county's online process lets applicants apply for building permits and zoning approval, check status, pay fees, and review inspection activity and results11. Contractors need an access code and can call (937) 521-2160 for help11. The county will not issue a building permit until all required submittals arrive and fees are paid11. Clark County's residential schedule lists a $42 application fee and a required 1% state fee; project-specific permit and inspection fees may add to that total13.
Does Clark County, Ohio have zoning, and who administers it?
Yes, but zoning administration depends on where the parcel sits in Clark County.
Yes, but zoning administration depends on where the parcel sits in Clark County2. Clark County zoning applies to unincorporated land in Bethel, Green, Harmony, Mad River, Madison, Moorefield and Pleasant Townships; German, Pike and Springfield Townships administer their own zoning, so zoning approval there comes from the township, not the county3,14. Inside New Carlisle the city issues its own zoning permit, and the county Building Department still handles building permits there4. The Village of Enon also zones its own land15. Springfield and the other villages list separate zoning contacts2. Septic and well permits stay with the health district wherever a parcel is zoned5,6. For the zoning district on a specific parcel, the county sends people to the Clark County Auditor's GIS website for downloadable zoning maps2. County-zoned land is divided into agricultural, residential, business, industrial, mixed-use, planned-development, manufactured-home-park, floodplain and other special districts14. For single-family homes, A-1 has a 40-acre standard with a 1-acre lot-split exception, while AR-1, AR-2, AR-5, AR-10 and AR-25 require the acreage in the district name8. A-1 and AR single-family residential tables show 40-foot front, 25-foot side and 60-foot rear setbacks; other districts, such as industrial ones, have larger setbacks8,14. In county-zoned areas, a qualifying agricultural structure can avoid a zoning certificate, but that does not waive building-code, fire-code or septic requirements14.
How do septic permits work in Clark County, Ohio?
The Clark County Combined Health District administers household septic systems, which must be designed and installed under permit and follow state and local rules.
The Clark County Combined Health District administers household septic systems, which must be designed and installed under permit and follow state and local rules5. Before accepting an installation application, Ohio rules generally require a site review with a fee, soil evaluation and system design; an installation or alteration permit is valid for one year and may receive a six-month extension16. Clark County publishes a $50 site-approval fee5. New, replacement and altered systems receive installation inspection and another operating check no later than 12 months after approval16. Real-estate or refinancing inspections are different: the health district conducts them on request, a lender may require one, and no law requires a local-health-district inspection merely to sell a house; a septic tank must be pumped by a registered pumper and a pumping report submitted for that inspection5. Only about 14% of mapped Clark County soils avoid a “very limited” rating for a conventional drain field, so make site suitability an early contingency17.
Can you live in an RV or tiny home on your land in Clark County?
On land subject to Clark County zoning, living in an RV is limited to two temporary cases.
On land subject to Clark County zoning, living in an RV is limited to two temporary cases. First, a Temporary Zoning Certificate can allow one RV on a lot for a resident whose dwelling became uninhabitable from flooding, fire, wind or another catastrophe; it needs approved water and sewer connections and must leave within 60 days after the replacement home's certificate of occupancy8. Second, an RV may house an owner while a permanent home is built, only in the A-1 District and not in a platted subdivision, after the Chief Building Official approves the plans, with the same utility and 60-day removal conditions8,9. Outside those cases, a parked RV cannot be a dwelling: stored RVs, trailers and boats in A-1, R or PD districts are limited to two unenclosed per parcel, in the side or rear yard at least 3 feet from a lot line, with no fixed utility connections and no dwelling use9. A tiny house on wheels is treated as an RV and may only be parked in a campground; a foundation-built tiny house is an accessory dwelling unit needing electricity plus approved sewage disposal and water supply8. These are county-zoning rules, so parcels under township, city or village zoning need an answer from that separate authority3. Manufactured homes outside a manufactured-home park are a conditioned use in A-1 and R districts, and must be at least 22 feet wide and 22 feet long at one point with at least 900 square feet of living area, on a foundation, with hitches and wheels removed8,18.
Building a home in Clark County, Ohio: what to do, in order
Identify the parcel's zoning authority and district using the county jurisdiction information and published maps.
- Identify the parcel's zoning authority and district using the county jurisdiction information and published maps2.
- Confirm the proposed use, lot size and setbacks; county A-1 and AR districts have specific residential acreage and yard standards8.
- Secure a driveway permit from the Clark County Engineer or township road department for a new or relocated driveway; repairs do not require that permit1.
- Complete the health district's septic site review and obtain the required permit; the published site-approval fee is $505.
- If the property needs a new private well, obtain the health district permit before drilling6.
- Submit the building application and required plans, then pay the applicable fees before issuance11.
- Do not begin covered building work until the plans are approved10.
- Complete the applicable building and septic inspections, then submit the listed final documents before a certificate of occupancy is issued when required11,12,16.
What should you check before buying land in Clark County, Ohio?
Before buying, identify the zoning authority and district, then verify the proposed home, accessory structures and RV use with that authority.
Before buying, identify the zoning authority and district, then verify the proposed home, accessory structures and RV use with that authority2,14. For county-zoned A-1 or AR land, compare the parcel against the published lot-size and setback standards before ordering plans8. Confirm legal road access and whether a new or relocated driveway needs county-engineer or township approval1. Make septic suitability a contract contingency: only about 14% of mapped soils avoid a “very limited” rating for a conventional drain field17. If public sewer is accessible and available under Ohio's distance and capacity rules, connection may be required instead of onsite disposal19. Ohio requires a health-board permit for construction, alteration or sealing of a private well, subject to limited exceptions20. We could not confirm Clark County's floodplain-development requirements, so ask the Building Department about floodplain review before closing.
Watch-outs
- Zoning in Clark County is not handled by one office: the correct county, township, city or village authority depends on the parcel's location2.
- County-zoned land does not have general residential RV permission: temporary use is limited to a catastrophe replacement or to A-1 outside a platted subdivision during construction, and stored RVs may not be lived in8,9.
- Real-estate septic inspections are performed on request, and no law requires a local-health-district inspection merely because a house is sold5.
- A new or relocated driveway needs a permit from the Clark County Engineer or township road department; driveway repairs do not1.
Sources
20 official pages, each quoted and re-checked · written October 14, 2026
- Does My Project Require a Permit
- Zoning Jurisdiction Map & Information
- Planning & Zoning
- New Carlisle: Application for Zoning Permit (new additions / new construction) (Clark County)
- Sewage & Septic Systems – Clark County Health Department
- Private Water Systems: Wells
- Current Codes
- Clark County, OH Zoning Regulations
- Clark County, OH Zoning Regulations
- Section 3791.04 | Submission of plan - approvals - prohibition - fine (Ohio statewide rule)
- Forms & Applications
- Typically Required Inspections / Sequence
- Residential Building Fee Schedule
- Clark County Zoning Regulations
- Village of Enon: Codified Ordinances of Enon, OH - Chapter 1139 Districts, Boundaries, and Maps (Clark County)
- Rule 3701-29-09 | Site review and permits for STS installation and operation (Ohio statewide rule)
- 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
- Clark County Zoning Regulations
- Rule 3745-42-07 | Best available technology for connection into sanitary sewers and centralized collection and treatment (Ohio statewide rule)
- Chapter 3701-28 | Private water systems (Ohio statewide rule)
Written October 14, 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 Clark 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.
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