Hardin County, OH Building Permits, Zoning & Septic Rules

Hardin County, Ohio does not require a county residential structural-code building permit, but township zoning approval can still gate a new home¹. Zoning rules vary by township rather than coming from one countywide ordinance². Household septic systems require a Kenton-Hardin Health Department permit and site evaluation³.

At a glance

Building permit: No county residential structural-code permit; township zoning may still apply¹
Zoning: Administered township by township; coverage and standards vary by parcel²⁴
Septic permit: Required through the Kenton-Hardin Health Department³⁵
RV living: No countywide private-land rule confirmed; ask the parcel's township zoning officer²
Tiny homes: No countywide occupancy rule confirmed; township district standards control siting²
Minimum home size: Varies locally; Hale Township A-1 sets 800 sq ft for a house and 600 sq ft for a mobile home⁶
Private wells: State permitting applies; the health department draws up a local permit when needed⁷⁸

Who to call

Planning & zoning

Hardin County Regional Planning Commission

Countywide infrastructure planning and coordination with township zoning officers

(419)674-2215

[email protected]

One Courthouse Square, Suite 130, Kenton, OH 43326

Health department

Kenton-Hardin County Health Department

Household sewage treatment system site evaluations, permits and follow-up inspections

419-673-6230

[email protected]

175 W. Franklin St., Suite 120 Kenton OH 43326

Roads & driveways

Hardin County Engineer's Office

County-road driveway and right-of-way permit form, house-number requests and county road questions

(419) 674-2222

[email protected]

1040 W. Franklin Street, Kenton, Ohio 43326

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

Do you need a building permit in Hardin County, Ohio?

Ordinary residential construction in Hardin County does not need a county structural-code building permit¹. The practical catch is land-use approval: township zoning can gate a dwelling even when the county does not review its structure¹. Ohio law allows counties to adopt residential building regulations and operate certified building departments, but that authority alone does not establish a Hardin County permit program⁹. The county's published materials show township zoning regulations, so identify the parcel's township before treating any project as permit-free¹⁰. We could not confirm an inspecting authority or certificate-of-occupancy rule for ordinary residential work; ask the township zoning officer whether another certified department has jurisdiction over the parcel.

Who handles Hardin County building permits and zoning?

Hardin County Regional Planning directs countywide infrastructure projects and works with township zoning officers¹¹. Reach Regional Planning at One Courthouse Square, Suite 130, Kenton, OH 43326, by phone at (419)674-2215 or by email at [email protected]¹¹. Regional Planning is a useful starting point for identifying the right township, but the county's official publication lists separate zoning regulations for several townships rather than one county-administered rulebook¹⁰. Contact the zoning officer for the parcel's township for the actual certificate, setbacks, use approval and local fee. For county-road access, the Hardin County Engineer's Office publishes a Driveway/Work in Right of Way Permit form and a house-number request¹².

Does Hardin County have zoning?

Hardin County zoning is local: the county publishes regulations for Blanchard, Buck, Cessna, Dudley, Goshen, Hale, Pleasant, Taylor Creek and Jackson Townships, but coverage and standards vary by township or municipality⁴. Cessna's rules cover its entire unincorporated area, and Dudley's rules do the same for Dudley Township¹³¹⁴. Dimensional rules can change sharply by district: Cessna R-2 setbacks depend on whether central or group sewer is available, while Buck A-1 requires a 100-foot front setback measured from the road centerline for the cited uses¹⁵¹⁶. Cessna and Buck also publish district-specific height limits rather than one countywide cap¹⁷¹⁸. Buck requires a written zoning-certificate application for non-farm buildings and structures, with filing fees set separately by township-trustee resolution¹⁹²⁰. Buck also requires the certificate before initial gas, electric, water or sewer service to a building or mobile home²¹.

How do septic permits work in Hardin County?

A new household sewage treatment system in Hardin County requires a Kenton-Hardin Health Department permit⁵. Submit the site-inspection application with the stated $320 evaluation fee at least 48 hours before the evaluation; the department then reviews the soil and site⁵. Before permit issuance, provide a county-engineer address, a recorded survey and the installer's scaled drawing⁵. The packet states a $424 installation-permit fee and a one-year validity period, and it suspends installation from December 1 through March 1²²⁵. An off-lot discharging system also needs an Ohio EPA NPDES permit first²³. A follow-up inspection occurs within 12 months after installation²⁴. Because 0% of mapped soils are rated free of severe limits for a conventional drain field, make the site evaluation an early purchase contingency²⁵.

Can you live in an RV or tiny home in Hardin County?

Hardin County has no confirmed countywide rule answering whether an owner may live in an RV on a private parcel; ask the parcel's township zoning officer before relying on an RV during construction². Ohio's campground standards regulate licensed campgrounds, not the separate question of living in an RV on one's own rural lot²⁶. A tiny home likewise needs a township-specific answer on use, setbacks and minimum floor area². Hale Township's A-1 rules set an 800-square-foot minimum for a single-family dwelling and a 600-square-foot minimum for a mobile-home dwelling⁶. Hale mobile-home park lots also cap the dwelling and accessory-building coverage at 50% of the lot²⁷. Those Hale standards do not apply countywide⁶²⁷. A manufactured home is also subject to Ohio's inspection-seal requirement before occupancy²⁸.

Building a home in Hardin County: the steps, in order

Identify the parcel's township and ask its zoning officer about the allowed use, district setbacks, height limit, certificate and fee²⁹.
Ask whether a certified building department has structural-code jurisdiction, because no county-specific inspecting authority was confirmed.
If the project is agricultural, ask for the zoning certificate that can establish Ohio's building-code exemption; Cessna still requires an application to check an agricultural building's setbacks and size³⁰³¹.
Apply to the Kenton-Hardin Health Department for the septic site evaluation before fixing the house location⁵.
Obtain the county-engineer address and recorded survey, then have the installer submit the scaled sewage-system drawing⁵.
Ask the Engineer's Office about county-road access and submit deeds, parcel splits, surveys or subdivision plats to its Tax Map Department when applicable¹²³².
Obtain the septic installation permit before work and arrange the required follow-up inspection²²³³.

What should you check before buying land in Hardin County?

Confirm the township and zoning district first, because Hardin County's published township rules do not establish one uniform countywide answer⁴. Put septic feasibility in the purchase contingency: 0% of mapped soils are rated free of severe limitations for a conventional drain field, even though 100% of county land is at a slope of 15% or less²⁵³⁴. Ask the health department whether it needs to draw up the private-water-system permit; its packet states a $392.90 fee when that permit is needed, while Ohio separately requires permits for constructing, altering, sealing or decommissioning a private well⁸⁷. Check the township map for flood restrictions: Hale has a Flood Plain and Drainageway District intended to prevent harmful encroachment, but the available excerpt does not provide its complete development standards³⁵. For carrying costs, Hardin County's typical effective property-tax rate is about 1.1%, and the median annual bill is about $1,513³⁶³⁷.

Watch-outs

A rule from one Hardin County township is not a countywide rule; verify the parcel's township and zoning district before designing the project².
The septic packet states that installations are suspended from December 1 through March 1, so winter timing can delay a build⁵.
The health department's permit packet was updated in 2022; confirm the $320 site-evaluation fee and $424 installation-permit fee before applying⁵.

Sources

Written September 29, 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.

How Hardin County scores

Seclusion23100% ev.

Self-Sufficiency30100% ev.

Admin Boringness5490% ev.

Durability84100% ev.

Property Autonomy35100% ev.

Carry Cost66100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$193kTypical home

1.1%Property tax

$9,197Land / acre

37.7"Annual rain

0.3% of yrsSevere drought

3.5 / yr (+3.4)Mid-century 100°F days

11.7 daysMid-century dry spell

1.46" (+8.9%)Mid-century 1-day rain

1.8×Wildfire change factor

100%Forward climate coverage

$1,282Home insurance / yr

1.5% / yrInsurance growth

1.23%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

91,563People within 30 min

7,073,646People within 2 hr

44,101Radius comparison (15 mi)

64.6People / sq mi

0.8%Federal land

100%Land at 15% slope or less

0%Septic soil without severe limits

0 acWorkable land screen

9%Wooded land

62.6 tonsBiomass / forest ac

51°FAvg temp

Answers from the rulebook for Hardin County

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

Hardin County rules

Local zoningVaries (with conditions)
The countywide aggregate of local zoning coverage in Hardin County, including unincorporated areas governed by township zoning resolutions.
- The county source lists zoning regulations for Blanchard, Buck, Cessna, Dudley, Goshen, Hale, Pleasant, Taylor Creek, and Jackson Townships.
- The cited page is a county-hosted directory; the actual rule-makers are the individual township governments, not Hardin County itself.
- Coverage and standards vary by township and incorporated municipality; this aggregate claim does not establish zoning coverage for every parcel in the county.
“Township Policies: NOTE: The listed township officials may not be accurate in the linked documents, please see the Directory of Hardin County Township Officials for the most up to date information. Blanchard Township Zoning Regulations —Updated 2025 Buck Township Zoning Regulations Cessna Township Zoning Regulations—Updated 2025 Dudley Township Zoning Regulations—Updated 2025 Goshen Township Zoning Regulations Hale Township Zoning Regulations Amended Pleasant Township Zoning Resolution Adopted 1.26.26 Taylor Creek Township Zoning Regulations Jackson Township Zoning Regulations”
Prosecutor – Township Law ↗Re-checked Sep 29, 2026
One more reviewed finding on this topic
- Varies (with conditions) — Aggregate of township and municipal zoning within Hardin County; the county page identifies multiple township zoning regulations, while the cited Buck regulation is administered by Buck Township.
  “Township Policies: NOTE: The listed township officials may not be accurate in the linked documents, please see the Directory of Hardin County Township Officials for the most up to date information.”
  Township Law ↗Re-checked Sep 29, 2026
Zoning districtsPartial
Official publication of local zoning regulations and district information for Hardin County; the county page identifies township zoning regulations but does not establish a single countywide zoning-district map or ordinance.
- The listed regulations are township-level rules, not a county-administered zoning ordinance.
- The official county page lists regulations for Blanchard, Buck, Cessna, Dudley, Goshen, Hale, Pleasant, Taylor Creek, and Jackson Townships.
- The page does not state that the list covers every township or incorporated municipality in Hardin County.
“Township Policies: [...] Blanchard Township Zoning Regulations —Updated 2025 [...] Cessna Township Zoning Regulations—Updated 2025”
Prosecutor – Township Law – Hardin County Ohio ↗Re-checked Sep 24, 2026
Who permits septicCounty
Household sewage treatment systems in Hardin County served by the Kenton-Hardin Health Department.
- The health department operates under Ohio Administrative Code 3701-29 requirements.
- Off-lot discharging systems additionally require an Ohio EPA NPDES permit before the local health department may issue a sewage permit.
“For an off-lot discharging system the OEPA must issue a NPDES permit before the local health department can issue a sewage permit.”
Process for Obtaining Sewage Treatment System Permit ↗Re-checked Sep 26, 2026
Septic permitRequired
Installation of household sewage treatment systems in Hardin County within the Kenton-Hardin General Health District.
- A homeowner must submit a Site Inspection Application and the $320 site-evaluation fee at least 48 hours before the evaluation inspection.
- The health department evaluates soil and site conditions under Ohio Administrative Code 3701-29 and determines whether the site qualifies for a soil-absorption or discharging system.
- For an off-lot discharging system, Ohio EPA must issue an NPDES permit before the local health department can issue the sewage permit.
- A county-engineer-issued address and recorded property survey must be submitted before the sewage permit is issued.
- The installer’s completed scaled drawing must be approved, modified, or rejected by the health department under Ohio Administrative Code 3701-29.
- The sewage-system installation permit fee stated in the packet is $424.
- The permit is valid for one year from purchase or until the system is installed and approved by the Kenton-Hardin Health Department.
- A follow-up system inspection is required within 12 months of installation.
- Sump pumps, floor drains, water softeners, and downspout discharges must not be connected to the septic system.
- Sewage-system installation is suspended by Board of Health order from December 1 through March 1.
- The packet is identified as updated January 13, 2022; current fees and contact details should be confirmed with the health department.
site evaluation fee: 320 USD (Must accompany the Site Inspection Application.) · minimum advance submission time: >= 48 hours (Before the scheduled evaluation inspection.) · sewage system installation permit fee: 424 USD · permit validity: 1 year (From purchase date or until installation and approval, whichever occurs first.) · follow-up inspection deadline: <= 12 months (After installation.) · installation suspension period: December 1 through March 1 (By order of the Board of Health.)
“No person shall install a new or replacement STS or alter an existing STS without an installation or alteration permit issued by the board of health.”
Process for Obtaining Sewage Treatment System Permit ↗Re-checked Sep 24, 2026
One more reviewed finding on this topic
- Required — New household sewage treatment systems in Hardin County.
  “Upon approval of the scaled drawing from the installer and the fee paid of $424, a “Sewage System Installation Permit” will be issued.”
  Process for Obtaining Sewage Treatment System Permit ↗Re-checked Sep 26, 2026
Septic inspectionRequired
New sewage-treatment-system installations in Hardin County.
- A site and soil evaluation is required at least 48 hours before the evaluation inspection.
- A follow-up system inspection is required within 12 months of installation.
“A follow-up required system inspection will be conducted within 12 months of installation as part of the permit operation and management.”
Process for Obtaining Sewage Treatment System Permit ↗Re-checked Sep 29, 2026
One more reviewed finding on this topic
- Required — Installed household sewage treatment systems in Hardin County.
  “A follow-up required system inspection will be conducted within 12 months of installation as part of the permit operation and management.”
  Process for Obtaining Sewage Treatment System Permit ↗Re-checked Sep 26, 2026
Well permitLimited
Private water systems and wells associated with sewage-treatment permitting in Hardin County.
- The source says the permit is issued if needed; it does not establish that every private well requires a permit.
- The private water system permit fee is $392.90 and includes the first bacteria sample.
private water system permit fee: 392.9 USD (first water sample included to check for bacteria)
“The health department will draw up a private water system permit, if needed, from the installer’s approved scaled sewage drawing. The “Private Water System Permit” fee is $392.90. (first water sample included to check for bacteria).”
Process for Obtaining Sewage Treatment System Permit ↗Re-checked Sep 29, 2026
Subdividing landRegulated (with conditions)
Deeds, parcel splits, surveys, and subdivision plats presented to the Hardin County Engineer’s Tax Map Department.
- The source identifies county-office approval but does not provide the complete subdivision-approval standards or fee schedule.
“Tax Map: All Deeds, parcel splits, surveys and subdivision plats are approved at this office.”
Tax Map and Ditch Maintenance ↗Re-checked Sep 29, 2026
County-wide zoningPresent
Zoning in Hardin County is administered at the township level (e.g., Hale and Cessna Township zoning regulations posted on the county site); it is not a single countywide ordinance and coverage varies by township.
Hardin County OH - Township Zoning Regulations ↗Scouted from the county site, not yet independently re-checked

Ohio rules that apply here

Building permitRequired
Construction, erection, manufacture, equipment, alteration, or addition of buildings subject to Ohio Revised Code section 3781.06, including industrialized units, statewide.
- Plans or drawings, specifications, and data must be submitted before beginning the work.
- Submission is made to the municipal, township, or county building department having jurisdiction.
- If no certified municipal, township, or county building department certified for nonresidential buildings has jurisdiction, submission is made to the superintendent of industrial compliance.
- If no certified municipal, township, or county building department certified for residential buildings has jurisdiction, the owner is not required to make the submission described in division (A)(1).
“No owner shall proceed with the construction, erection, alteration, or equipment of any building until the plans or drawings, specifications, and data have been approved as this section requires, or the industrialized unit inspected at the point of origin.”
Section 3791.04 | Submission of plan - approvals - prohibition - fine ↗Re-checked Sep 12, 2026
Building code adoptedAdopted (with conditions)
Buildings and classes of buildings regulated under Ohio Revised Code Chapter 3781, including residential and nonresidential buildings and industrialized units.
- The Ohio Board of Building Standards formulates and adopts separate residential and nonresidential building codes.
- Residential-code requirements are uniform in areas with a building department certified to enforce the state residential building code.
- A local code or regulation may differ from the state residential building code only when it addresses subject matter not addressed by the state residential building code or is adopted pursuant to Ohio Revised Code section 3781.01.
- Enforcement authority is exercised by certified municipal, township, and county building departments or other certified personnel as provided by law.
“The board of building standards shall formulate and adopt rules governing the erection, construction, repair, alteration, and maintenance of all buildings or classes of buildings specified in section 3781.06 of the Revised Code, including land area incidental to those buildings, the construction of industrialized units, the installation of equipment, and the standards or requirements for materials used in connection with those buildings. The board shall incorporate those rules into separate residential and nonresidential building codes.”
Section 3781.10 | Board of building standards - powers and duties ↗Re-checked Sep 12, 2026
InspectionsRequired
Building work subject to Ohio building-code enforcement after certificate of plan approval, and inspections initiated after complaints, accidents, or natural disasters.
- Inspections are directed after a certificate of plan approval has been issued, or after a complaint, accident, or natural disaster.
- The building official identifies special conditions affecting inspection timing and schedules inspection times mutually agreed upon by the building official and owner.
- Special inspections required under section 1704 of rule 4101:1-1-01 are excepted from the stated scheduling rule.
- Certified inspectors inspect work within the limits of their certification and the approved construction documents.
“Once a certificate of plan approval has been issued in accordance with rule 4101:1-1-01 or 4101:8-1-01 of the Administrative Code, or upon receipt of a complaint or occurrence of an accident or natural disaster, the building official directs necessary inspections and investigations to determine whether the work which has been performed and the installations which have been made are in conformity with the approved construction documents.”
Rule 4101:7-3-02 | Building department personnel duties and responsibilities ↗Re-checked Sep 12, 2026
Manufactured homesLimited
Occupancy of manufactured homes installed in Ohio and regulated under Chapter 4781 of the Revised Code and implementing rules.
- A manufactured home generally may not be occupied until the inspector issues the inspection seal.
- The inspection seal must be paid for when the permit is issued.
- A temporary occupancy permit may provide the applicable exception under Rule 4781-7-01(C).
- The home must meet Ohio manufactured-home installation standards; local ordinances and other regulations may also apply to site placement.
“Except as provided in paragraph (C) of this rule, no manufactured home shall be occupied until the inspector has issued the inspection seal.”
Chapter 4781-7 | Manufactured home inspections ↗Re-checked Sep 12, 2026
Mandatory utility hookupSewer (with conditions)
Disposal of sewage where an existing publicly owned or regional sanitary sewer is accessible and available.
- The sewer connection may not conflict with an areawide waste-treatment plan, approved regional sewage-service and treatment plan, or connection ban.
- The receiving disposal system must have or be expected to have capacity to collect and treat the sewage.
- For an existing structure, any part of the structure generating waste must be within 300 feet of the nearest sanitary-sewer right-of-way boundary.
- For a proposed structure outside a larger common plan, any lot property line must be within 300 feet.
- For two or more proposed structures, the threshold is 200 feet multiplied by the number of proposed structures, up to 5,000 feet.
- The director may grant an exemption when technical, financial, environmental, legal, or physical barriers prevent connection and the alternative will not adversely affect human health or the environment.
- When a sewer later becomes accessible and available, a non-public or non-regional disposal system must generally be abandoned and connection made within three years unless the director authorizes another timeframe.
existing structure sewer-distance threshold: <= 300 feet (Measured to the nearest boundary of the sanitary-sewer right-of-way.) · proposed structure sewer-distance threshold: <= 300 feet (Measured from any property line of the lot.) · multiple proposed structures threshold: 200 feet multiplied by the number of proposed structures (Maximum distance is 5,000 feet.) · connection deadline after accessibility becomes available: 3 years (Unless an alternative timeframe is authorized by the director.)
“Connection into existing publicly owned or regional sanitary sewers is required for the disposal of sewage when said sewers are accessible and available.”
Rule 3745-42-07 | Best available technology for connection into sanitary sewers and centralized collection and treatment ↗Re-checked Sep 12, 2026
Agricultural exemptionAvailable (with conditions)
County zoning authority under Ohio Revised Code Chapter 303, including county rural zoning commissions, county boards of commissioners, and county boards of zoning appeals.
- The rule limits county zoning powers; it does not establish an unrestricted exemption from township zoning.
- Division (B) permits limited regulation in specified platted subdivisions or areas of fifteen or more contiguous lots: agriculture on lots of one acre or less; agricultural buildings or structures on lots greater than one acre but not greater than five acres by setback, height, and size; and dairying or animal and poultry husbandry on lots greater than one acre but not greater than five acres when at least 35 percent of subdivision lots meet the stated development condition.
- Division (B) confers no county power to regulate agriculture, agricultural buildings or structures, and dairying or animal and poultry husbandry on lots greater than five acres.
- Division (C) separately limits county power to prohibit qualifying farm markets, certain agricultural energy facilities, biologically derived methane gas production within the stated output limits, and agritourism, while allowing specified health-and-safety regulations.
agricultural buildings or structures county-zoning exemption: > 5 acres (Division (B) states that county zoning has no power to regulate agriculture, buildings or structures, and dairying and animal and poultry husbandry on lots greater than five acres) · subdivision development threshold for specified husbandry regulation: >= 35 percent of lots (lots must be developed with at least one building, structure, or improvement subject to real-property taxation or the manufactured/mobile-home tax) · biologically derived methane gas output limit: <= 17060710 British thermal units (or five megawatts, or both)
“Division (B) of this section confers no power on any county rural zoning commission, board of county commissioners, or board of zoning appeals to regulate agriculture, buildings or structures, and dairying and animal and poultry husbandry on lots greater than five acres.”
Section 303.21 | Limitations on powers - agricultural purposes ↗Re-checked Sep 29, 2026
2 more reviewed findings on this topic
- Available (with conditions) — Agricultural buildings or structures in Ohio, including those in Hardin County, when the statutory conditions are met.
  “Whenever a county zoning inspector under section 303.16 of the Revised Code, or a township zoning inspector under section 519.16 of the Revised Code, issues a zoning certificate that declares a specific building or structure is to be used in agriculture, such building is not subject to sections 3781.06 to 3781.20 , 3781.40 , or 3791.04 of the Revised Code.”
  Section 3781.061 | Exemption for building or structure used in agriculture ↗Re-checked Sep 29, 2026
- Conditional — Buildings or structures incident to agricultural use of the land, and a specific building or structure declared by a county or township zoning inspector to be used in agriculture.
  “issues a zoning certificate that declares a specific building or structure is to be used in agriculture, such building is not subject to sections”
  Section 3781.06 | Public buildings to be safe and sanitary - definitions ↗Re-checked Sep 12, 2026
Permit feesPublished (with conditions)
Construction documents and inspections required to be submitted to the Ohio Division of Industrial Compliance.
- The certificate of occupancy or certificate of completion will not be issued until applicable fees are paid.
- The schedule includes a $275 processing fee for structural, mechanical, electrical, fire alarm, and sprinkler scopes; plan-examination fees vary by scope and area or device count.
- One initial plan review and up to two resubmission plan reviews are included; additional resubmissions cost $100 each.
- Additional inspections cost $150 per inspection; reinspections cost $150.
- Certificates of occupancy or completion cost $65, except existing-building certificates issued under rule 111.4 have no fee.
- The rule was effective January 1, 2019 and was last updated July 14, 2026.
structural processing fee: 275 USD · certificate of occupancy or completion fee: 65 USD (No fee for existing-building certificates issued under rule 111.4)
“The fees for examination and processing of construction documents when required to be submitted to the division of industrial compliance, except medical gas piping systems and temporary structures, shall be in accordance with Table B1.”
Chapter 4101:7-7 | Fees ↗Re-checked Sep 12, 2026
One more reviewed finding on this topic
- Variable (with conditions) — Construction-document submissions and inspections handled by certified municipal, township, or county building departments in Ohio.
  “Fees for construction documents submitted to and inspections made by certified building departments shall be in accordance with the locally adopted fee schedule.”
  Chapter 4101:7-7 | Fees ↗Re-checked Sep 12, 2026
Permit processPublished (with conditions)
Construction, erection, alteration, or equipment of buildings subject to Ohio Revised Code section 3781.06.
- Before beginning construction, the owner must submit plans, drawings, specifications, and data to the municipal, township, or county building department having jurisdiction, subject to the statutory exceptions where no certified department has jurisdiction.
- No owner may proceed until the plans and specifications are approved or the industrialized unit is inspected at the point of origin.
- Plans must comply with Chapters 3781 and 3791 and applicable rules.
- Approval becomes invalid if work has not commenced within twelve months; one additional twelve-month extension may be granted if requested at least ten days before expiration and accompanied by a fee not exceeding $100.
- If work is delayed or suspended for more than six months, approval becomes invalid; two six-month extensions may be granted, each with a fee not exceeding $100.
- A certified building department or the superintendent must review submitted plans.
- Conditional approval may allow construction only up to the point of an unresolved objection.
initial approval deadline: <= 30 days (Failure to approve or disapprove within thirty days is treated as an adjudication order denying issuance of a license.) · commencement period after approval: 12 months (One extension of twelve months is available under the stated conditions.)
“No owner shall proceed with the construction, erection, alteration, or equipment of any building until the plans or drawings, specifications, and data have been approved as this section requires, or the industrialized unit inspected at the point of origin.”
Section 3791.04 | Submission of plan - approvals - prohibition - fine ↗Re-checked Sep 12, 2026
Campground & park staysLimited
Occupancy and placement of recreational vehicles in Ohio-licensed campgrounds and temporary campgrounds.
- Recreational vehicles may be parked only on sites verified as complying with plans approved by the director, or, for a temporary campground, by the licensor.
- A campground site may contain no more than one recreational vehicle and two portable camping units, or three portable camping units.
- Sites generally must be at least 1,000 square feet, subject to the temporary-campground density exception determined by the licensor where open fires are prohibited.
- Separation, sanitation, sewage, gray-water, and licensed-capacity requirements also apply.
minimum campground site area: >= 1000 square feet (Except as provided in paragraph (I)(11) for temporary campgrounds.) · recreational vehicles per site: 1 vehicle (A site may also contain two portable camping units; alternatively, a site may contain three portable camping units.)
“Recreational vehicles or portable camping units shall be parked only on sites that have been verified as complying with plans approved by the director, or in the case of a temporary campground, by the licensor;”
Rule 3701-26-04 | Campground requirements ↗Re-checked Sep 12, 2026
2 more reviewed findings on this topic
- Prohibited — Camping in Ohio state forests outside areas, sites, or campgrounds designated by the chief of the division of forestry or an authorized agent.
  “No person shall camp in a state forest except in areas, sites or campgrounds designated by the chief of the division of forestry or authorized agent.”
  Rule 1501:3-3-01 | Camping permitted in designated areas ↗Re-checked Sep 12, 2026
- Limited — Roadside camping at designated Ohio state forests along public roads maintained by the division of forestry.
  “Roadside camping is permitted at designated state forests, along public roads maintained by the division of forestry, during certain legally established hunting seasons as authorized by the chief of the division of forestry.”
  Rule 1501:3-3-06 | Camp occupancy ↗Re-checked Sep 12, 2026
county zoning authorityGeneral
County commissioners may adopt zoning resolutions regulating building, structures, land uses, and districts or zones in unincorporated territory statewide.
- The authority is exercised by resolution and must be in accordance with a comprehensive plan.
- The authority applies to unincorporated territory of the county.
- The statute begins with the exception phrase “Except as otherwise provided in this section,” so the limitations in ORC Chapter 303 apply.
- For nonresidential property only, the county may regulate height, bulk, number of stories, size, lot coverage, yards, courts, open spaces, and population density.
- Agricultural uses and agricultural buildings are subject to the limitations in ORC 303.21; the statute also contains limitations for public utilities, railroads, telecommunications towers, alcoholic-beverage sales, oil and gas drilling, and permanently sited manufactured homes.
- Activities regulated under ORC Chapters 1513 and 1514 may be regulated only in the interest of public health or safety, and Chapter 1514 activities must be provided for as permitted or conditional uses as specified by ORC 303.02.
“the board of county commissioners may regulate by resolution, in accordance with a comprehensive plan”
Section 303.02 | County commissioners may regulate building and land use in unincorporated territory ↗Re-checked Sep 21, 2026
county building authorityGeneral
County commissioners may adopt and enforce local residential building regulations in unincorporated areas and may operate certified county building departments that enforce state residential and nonresidential building codes, accept and approve plans, and conduct inspections.
- Local residential building regulations may be enforced within the unincorporated area or within districts established in the unincorporated area.
- A local residential building regulation may not differ from the state residential building code unless it addresses subject matter not addressed by that code or is adopted under ORC 3781.01.
- An existing structures code must concern subject matter not addressed by, and may not conflict with, the state residential building code.
- County building departments may enforce state codes only for the types of buildings and subject matters for which they are certified.
- Certification permits enforcement authority, plan approval, and inspections; the certification application identifies whether it covers residential or nonresidential buildings and whether residential certification covers new construction only or also repair and alteration.
- The board may adopt flood-hazard, Lake Erie coastal-erosion, and drainage regulations, subject to the statutory limits and exceptions in ORC 307.37.
- Local regulations, codes, or amendments require public hearings at not fewer than two regular or special board sessions; they take effect on the thirty-first day after adoption.
- Regulations adopted under ORC 307.37 generally do not affect buildings or structures existing, or under construction, before adoption, except as provided for an existing structures code.
- The state residential building code is effective as a uniform requirement in areas with a building department certified to enforce it.
“The board of county commissioners may adopt local residential building regulations governing residential buildings as defined in section 3781.06 of the Revised Code”
Section 307.37 | Adoption of county building code ↗Re-checked Sep 21, 2026

Inside cities and towns in Hardin County

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

Zoning districtsPublished (with conditions)
The entire unincorporated land area of Cessna Township, Hardin County, Ohio.
- The regulations apply to the entire unincorporated land area of Cessna Township.
- Agricultural land and agricultural structures on lots greater than five acres are generally exempt from restrictions, except agricultural buildings or structures must conform to required setback lines.
- The resolution does not specify or regulate the type or location of materials or distributing equipment of a public utility.
- Agricultural uses on lots of one acre or less are subject to the resolution.
- Agricultural buildings and structures on lots greater than one acre but not greater than five acres are subject to provisions including setback lines, building height, and building size.
- Conditionally permitted uses require a Conditional Use Permit by the Zoning Enforcement Officer as approved by the Board of Zoning Appeals.
- The districts are shown on the original Zoning District Map, which accompanies and is an internal part of the resolution.
- The document states that amendments were adopted September 24, 2025 and enacted October 24, 2025.
district A-1 minimum size for new district: No Minimum · district R-1 minimum size for new district: 30 acres · district R-2 minimum size for new district: 20 acres · district R-MPH minimum size for new district: 10 acres · district C-1 minimum size for new district: 22500 square feet · district I-1 minimum size for new district: 5 acres · district FP minimum size for new district: No Minimum · district ME minimum size for new district: 15 acres
“The provisions of this Resolution shall apply to the entire unincorporated land area of Cessna Township, Hardin County, Ohio [...] That, for the purpose as stated in Section A, title and Preamble provision is hereby made for the establishment of eight Zoning Districts within Cessna Township, Hardin County, Ohio. A-1 Agricultural District R-1 Low Density Residential District R-2 Medium Density Residential District R-MPH Mobile Home Park District C-1 General Commercial District I-1 General Industrial District FP Flood Plain District ME Resources and Mineral Extraction District”
Amendments to Cessna Township Zoning Regulations, Hardin County, Ohio ↗Re-checked Sep 29, 2026
9 more reviewed findings on this topic
- Published — Hale Township unincorporated territory.
  “Hale Township, Hardin County, Ohio is hereby divided into eight zoning districts -- A-1 Agricultural District; R-1 Low Density Residential District; R-2 Medium Density Residential District; R-MHP Mobile Home Park District; C-1 General Commercial District; I-1 General Industrial District; FP Flood Plain District; and ME Resource and Mineral Extraction District”
  Hale Township Zoning Regulations ↗Re-checked Sep 26, 2026
- Published (with conditions) — The entire unincorporated land area of Dudley Township, Hardin County, Ohio.
  “The provisions of this Resolution shall apply to the entire unincorporated land area of Dudley Township, Hardin County, Ohio. [...] That, for the purposes as stated in Section A, Title and Preamble, Dudley Township, Hardin County, Ohio is hereby divided into eight zoning districts -- A-1 Agricultural District; R-1 Low Density Residential District; R-2 Medium Density Residential District; R-MHP Mobile Home Park District; C-1 General Commercial District; I-1 General Industrial District; FP Flood Plain District; and ME Resource and Mineral Extraction District -- all as shown on the Official Zoning District Map which accompanies and is an internal part of this Resolution.”
  Dudley Township Zoning Regulations, Hardin County, Ohio ↗Re-checked Sep 29, 2026
- Published (with conditions) — The entire unincorporated land area of Blanchard Township, Hardin County, Ohio.
  “Blanchard Township, HardinCounty, Ohio is hereby divided into eight zoning districts—A-l Agricultural District; R-1 Low Density Residential District;”
  Blanchard Township Zoning Regulations ↗Re-checked Sep 29, 2026
- Published (with conditions) — Buck Township zoning under its township zoning resolution.
  “Buck Township, Hardin County, Ohio is hereby divided into eight zoning districts -- A-1 Agricultural District; R-1 Low Density Residential District;”
  Buck Township Zoning Regulations ↗Re-checked Sep 29, 2026
- Published (with conditions) — Dudley Township zoning under its township zoning resolution.
  “Dudley Township, Hardin County, Ohio is hereby divided into eight zoning districts -- A-1 Agricultural District; R-1 Low Density Residential District;”
  Dudley Township Zoning Regulations ↗Re-checked Sep 29, 2026
- Published (with conditions) — Goshen Township zoning under its township zoning resolution.
  “Goshen Township, Hardin County, Ohio is hereby divided into eight zoning districts -- A-1 Agricultural District; R-1 Low Density Residential District;”
  Goshen Township Zoning Regulations ↗Re-checked Sep 29, 2026
- Published (with conditions) — Hale Township zoning under its township zoning resolution.
  “Hale Township, Hardin County, Ohio is hereby divided into eight zoning districts -- A-1 Agricultural District; R-1 Low Density Residential District;”
  Hale Township Zoning Regulations ↗Re-checked Sep 29, 2026
- Published (with conditions) — Pleasant Township zoning regulations published by the county prosecutor's official township-law page.
  “Amended Pleasant Township Zoning Resolution Adopted 1.26.26”
  Prosecutor – Township Law – Hardin County Ohio ↗Re-checked Sep 29, 2026
- Published (with conditions) — Taylor Creek Township zoning under its township zoning resolution.
  “Taylor Creek Township, Hardin County, Ohio is hereby divided into eight zoning districts -- A-1 Agricultural District; R-1 Low Density Residential District;”
  Taylor Creek Township Zoning Regulations ↗Re-checked Sep 29, 2026
Minimum dwelling sizeSpecified
Dwelling units in Hale Township A-1 and R districts.
- The cited schedule continues beyond the excerpt and other zoning districts may have separate requirements.
A-1 single-family minimum floor area: 800 sq ft · A-1 mobile-home minimum floor area: 600 sq ft
“No dwelling unit in an "A" or "R" District shall have a floor area less than the following: Minimum Floor Area Per Dwelling Unit Zoning District (Sq. Ft.) A-1 800 - Single-family dwellings 600 - Mobile home dwellings”
Hale Township Zoning Regulations ↗Re-checked Sep 26, 2026
SetbacksDistrict specific (with conditions)
Minimum yard or setback requirements in the unincorporated area of Cessna Township, Hardin County, under the A-1, R-1, R-2, and R-MHP zoning districts.
- A-1 requires front 80 feet from the road right-of-way, side 80 feet from the property line, and rear 40 feet from the property line.
- R-1 requires front 80 feet from the road right-of-way, side 25 feet from the property line, and rear 40 feet from the property line.
- R-2 has sewer-dependent setbacks: with central or group sewers, front 25 feet, side 10 feet, and rear 25 feet; without central or group sewers, front 80 feet, side 25 feet, and rear 40 feet.
- R-MHP requires front 15 feet from the road right-of-way, side 15 feet from the property line, and rear 20 feet from the property line.
R-1 front setback: 80 feet (from the road right-of-way) · R-1 side setback: 25 feet (from the property line) · R-1 rear setback: 40 feet (from the property line) · R-2 front setback with central or group sewers: 25 feet (with central or group sewers) · R-2 side setback with central or group sewers: 10 feet (with central or group sewers) · R-2 rear setback with central or group sewers: 25 feet (with central or group sewers) · R-2 front setback without central or group sewers: 80 feet (without central or group sewers; measured from the road right-of-way) · R-2 side setback without central or group sewers: 25 feet (without central or group sewers; measured from the property line) · R-2 rear setback without central or group sewers: 40 feet (without central or group sewers; measured from the property line) · R-MHP front setback: 15 feet (from the road right-of-way) · R-MHP side setback: 15 feet (from the property line) · R-MHP rear setback: 20 feet (from the property line)
“Front: twenty-five (25) ft. where central or group sewers are provided, or eighty (80) ft. where central or group sewers are not provided, measured from the road right-of-way. Side: ten (10) ft. where central or group sewers are provided, or twenty-five (25) ft. where central or group sewers are not provided, measured from the property line. Rear: twenty-five (25) ft. where central or group sewers are provided, or forty (40) ft. where central or group sewers are not provided, measured from the property line.”
Cessna Township Zoning Regulations—Updated 2025 ↗Re-checked Sep 29, 2026
One more reviewed finding on this topic
- Specified — Buildings and mobile homes in Buck Township zoning districts.
  “100 ft. from the centerline of road. 40 ft. for non-farm homes & mobile homes on individual lots. 40 ft. for non-farm homes & mobile homes on individual lots.”
  Buck Township Zoning Regulations, District Regulations ↗Re-checked Sep 29, 2026
Lot coverageSpecified
Mobile-home park lots in Hale Township.
- The standard applies to each mobile-home park lot.
maximum lot coverage: <= 50 percent (including accessory buildings, garages and porches)
“Each mobile home dwelling, including accessory buildings, garages and porches, shall not cover more than fifty (50) percent of each mobile home park lot.”
Hale Township Zoning Regulations ↗Re-checked Sep 26, 2026
Building heightDistrict specific (with conditions)
Maximum building heights in the unincorporated area of Cessna Township, Hardin County, under the A-1, R-1, R-2, and R-MHP zoning districts.
- A-1, R-1, and R-2 each limit height to two and one-half stories or 35 feet.
- R-MHP limits height to 15 feet.
- The 35-foot standard therefore does not apply to every residential zoning district.
A-1 maximum height: 35 feet (two and one-half stories maximum) · R-1 maximum height: 35 feet (two and one-half stories maximum) · R-2 maximum height: 35 feet (two and one-half stories maximum) · R-MHP maximum height: 15 feet
“MAXIMUM HEIGHT: Two and one-half stories or 35 ft. in height [...] MAXIMUM HEIGHT: 15 ft.”
Cessna Township Zoning Regulations—Updated 2025 ↗Re-checked Sep 29, 2026
One more reviewed finding on this topic
- Specified — Buildings in Buck Township zoning districts.
  “Two & one-half (2 1/2) stories, or 35 ft. in height.”
  Buck Township Zoning Regulations, District Regulations ↗Re-checked Sep 29, 2026
Mandatory utility hookupConditional
Initial gas, electricity, water, or sewer utility service to a building or mobile home in Buck Township.
- A Buck Township Zoning Certificate must first be presented to the utility company or electrical supplier.
- This is a Buck Township rule, not a countywide utility-connection rule.
“No public utility company or supplier of electrical service shall supply initial utility services (gas, electricity, water, sewer) to any building or mobile home located within the confines of Buck Township until such time as a Zoning Certificate is presented”
Buck Township Zoning Regulations, Utility Services ↗Re-checked Sep 29, 2026
One more reviewed finding on this topic
- Conditional — Initial gas, electricity, water, or sewer service to buildings or mobile homes in Hale Township.
  “No public utility company or supplier of electrical service shall supply initial utility services (gas, electricity, water, sewer) to any building or mobile home located within the confines of Hale Township until such time as a Zoning Certificate is presented to such public utility or electrical service company which indicates that the building to be serviced has been officially approved by the Zoning Enforcement Officer.”
  Hale Township Zoning Regulations ↗Re-checked Sep 26, 2026
Agricultural exemptionAvailable (with conditions)
Agricultural buildings in the unincorporated area of Cessna Township, Hardin County, under the Cessna Township Zoning Regulations.
- A zoning certificate is not required for agricultural buildings such as barns, silos, and outbuildings.
- A permit application must nevertheless be completed to ensure that the buildings comply with setback and size regulations.
- The exemption is limited to agricultural buildings and does not remove other applicable requirements.
“d. Agriculture Buildings- Zoning certificates shall not be required for agricultural buildings, such as barns, silos and outbuildings, however a permit application must be completed to ensure that the buildings comply with setback and size regulations.”
Cessna Township Zoning Regulations—Updated 2025 ↗Re-checked Sep 29, 2026
Building in a floodplainLimited
Development in Hale Township's FP Flood Plain and Drainageway District.
- The district is intended to address storm-water channels, abnormal high-water flows, flood heights, loss of life, and property damage.
- The cited excerpt does not provide the complete Chapter 3 floodplain specifications.
“The FP Flood Plain & Drainageway District is designed to meet the need of storm water channels to carry abnormal flows of water in time of high water & flooding; to prevent encroachments into the districts which will unduly increase flood heights & damage; & to prevent the loss of life & excessive damage to property in the area of greatest flood hazard.”
Hale Township Zoning Regulations ↗Re-checked Sep 26, 2026
Permit feesVariable (with conditions)
Buck Township zoning-certificate, zoning-amendment, conditional-use, and variance applications.
- Filing fees are determined by resolution of the Buck Township Board of Township Trustees; the cited regulation does not state the dollar amounts.
“Each written application for a Zoning Certificate, Zoning Amendment, Administrative Appeal, Conditional Use Permit or Variance shall be accompanied by filing fees which are to be determined by resolution of the Board of Township Trustees.”
Buck Township Zoning Regulations ↗Re-checked Sep 29, 2026
Permit processPartial
Zoning Certificate applications for non-farm buildings and structures in Hale Township.
- Applications must include two copies of a scale drawing, lot location and existing zoning/use, building location/size/height, intended use, and dwelling-unit count if applicable.
- The zoning officer acts within 30 days.
- A certificate becomes void if construction does not begin within six months.
- Agricultural buildings, including barns, silos, and outbuildings, do not require a zoning certificate.
zoning officer action deadline: 30 days · certificate construction-start deadline: 6 months
“Application for a Zoning Certificate shall be made in writing to the Board of Township Trustees, or their authorized agent. Each written application shall include the following:”
Hale Township Zoning Regulations ↗Re-checked Sep 26, 2026
One more reviewed finding on this topic
- Partial — Buck Township zoning-certificate applications for non-farm buildings and structures.
  “Application for a Zoning Certificate shall be made in writing to the Board of Township Trustees, or their authorized agent.”
  Buck Township Zoning Regulations ↗Re-checked Sep 29, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

Owner-builder exemption — Owner-builder exemptions from construction permitting or inspection in Hardin County.
Certificate of occupancy — Certificates of occupancy for ordinary residential buildings in Hardin County.
Living in an RV — RV occupancy on private land in Hardin County.
Camping on your land — Temporary camping on private land in Hardin County.
Tiny homes — Tiny-home occupancy in Hardin County.

4 more unanswered

Accessory dwellings
Off-grid sanitation
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.

Living off-grid in Hardin County, Ohio

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

Hardin County scores 43/100 on the Bolthole Index, a marginal county profile. Its strengths: a durable current and mid-century hazard profile and manageable long-term carry cost. Watch-outs: about 91,563 people within a 30-minute drive and workable self-sufficiency basics (37.7″/yr rainfall).

Do you need a building permit in Hardin County, Ohio?

Hardin County requires a building permit only in limited cases (such as floodplains or specific zones), and it enforces county zoning. Onsite septic is permitted by Kenton-Hardin Health Department (under Ohio Department of Health). 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 Hardin County, Ohio?

Land in Hardin County runs about $9,197 per acre, based on the latest county data.

What is the water situation in Hardin County?

Hardin County gets about 37.7" of rain a year, with severe drought in roughly 0.3% of years.

How remote is Hardin County?

A representative private-land location has about 91,563 people within a 30-minute drive and 7,073,646 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.

Building permits, zoning and land rules in Hardin County, Ohio

At a glance

Who to call

Do you need a building permit in Hardin County, Ohio?

Who handles Hardin County building permits and zoning?

Does Hardin County have zoning?

How do septic permits work in Hardin County?

Can you live in an RV or tiny home in Hardin County?

Building a home in Hardin County: the steps, in order

What should you check before buying land in Hardin County?

Watch-outs

Sources

Hardin County in Ohio

How Hardin County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Hardin County

Hardin County rules

Ohio rules that apply here

Inside cities and towns in Hardin County

Still unanswered

Living off-grid in Hardin County, Ohio

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

Do you need a building permit in Hardin County, Ohio?

How much does land cost in Hardin County, Ohio?

What is the water situation in Hardin County?

How remote is Hardin County?

How Hardin compares in Ohio