Delaware County, OH Building Permits, Zoning & Septic Rules

Unincorporated Delaware County, Ohio requires a building permit for a new home: Delaware County Building Safety, a certified residential building department, issues them for the county's townships¹. Every township is zoned, either by its own township zoning office or, in Marlboro, Radnor and Thompson townships, by the county²³. Septic systems need a Delaware Public Health District permit, and on parcels of an acre or more a Soil and Water drainage review must come before the building permit⁴⁵.

At a glance

Building permit: Required; Delaware County Building Safety issues residential permits in unincorporated areas¹⁶
Zoning: Yes, everywhere: township zoning offices, or county zoning in Marlboro, Radnor and Thompson townships²³
Septic: Delaware Public Health District: soil evaluation, design, site review, then an installation permit⁴⁷
Drainage review: Required before the building permit on parcels of 1 acre or more outside platted subdivisions⁵
RV living: In county-zoned townships, only during home construction, for up to 18 months from the zoning permit⁸
Minimum home size: 950 sq ft finished habitable area in the county's Farm Residence district; townships set their own⁸
Well permit: Required from the health district before drilling⁹¹⁰
Owner-builder exemption: Not confirmed; ask Building Safety before planning to pull your own permits¹¹

Who to call

Building permits

Delaware County Building Safety

Residential and commercial building permits, plan review and inspections for unincorporated Delaware County

(740) 833-2200

[email protected]

1610 State Route 521, PO Box 8006, Delaware, Ohio 43015

Online permits →

Building permits

Delaware County Building Safety: residential permit application checklist

What a one-, two- or three-family residential permit application must include

Building permits

Delaware County Building Safety: work exempt from approval

Which small residential projects need no building approval

Zoning

Delaware County Zoning (Building Safety, Office of Zoning Regulation)

Zoning certificates (permits) under the Delaware County Zoning Resolution for Marlboro, Radnor and Thompson townships

740 833-2225

[email protected]

1610 State Route 521, PO Box 8006, Delaware, Ohio 43015

Zoning

Delaware County Zoning Resolution (Farm Residence district, county-zoned townships)

Lot size, home size, setbacks and RV rules in townships under county zoning

Floodplain permits

Delaware County Building Safety: Zoning & Floodplain

Floodplain development permits, and county zoning forms including the claim of agricultural exemption

(740) 833-2200

[email protected]

1610 State Route 521, PO Box 8006, Delaware, Ohio 43015

Zoning

Township and village zoning contacts (Delaware County Regional Planning Commission list)

Directory of each township's and village's zoning office

Planning & zoning

Delaware County Regional Planning Commission

Lot splits (no-plat), subdivisions, and rezoning recommendations for unincorporated townships

(740) 833-2260

1610 State Route 521, P.O. Box 8006, Delaware, OH 43015

Septic permits

Delaware Public Health District, Environmental Health (Residential Services)

Household sewage treatment system (septic) site reviews, installation and operation permits, lot feasibility, and private water system (well) permits

(740) 368-1700

[email protected]

Septic permits

Delaware Public Health District: procedure for obtaining a sewage permit

Step-by-step septic permit process

(740) 368-1700

470 S Sandusky St, Delaware, Ohio 43015

Septic permits

Delaware Public Health District: 2026 environmental health fee schedule

2026 septic and well permit fees

Also useful

Delaware Soil and Water Conservation District (Drainage Review Permits)

Drainage Review Permits required before a building permit on parcels of 1 acre or more outside platted subdivisions

(740) 368-1921

[email protected]

1610 State Route 521, Delaware, OH

Roads & driveways

Delaware County Engineer (Permits)

Driveway, right-of-way and culvert permits on county roads and, at township request, most township roads; hauling and posted-road permits

(740) 833-2400

[email protected]

1610 State Route 521, P.O. Box 8006

Contact details are copied from each office’s official page and were checked against it on September 24, 2026.

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

Yes. Delaware County Building Safety is a certified residential building department, and it issues building permits for residential construction in the unincorporated townships¹. Under Ohio law, an owner may not start building until the plans have been approved by the building department with jurisdiction¹². Delaware County Building Safety enforces the 2019 Residential Code of Ohio, and its permit application requires a complete set of plans based on that code¹³.

Small projects are exempt: a one-story detached shed or playhouse of no more than 200 square feet needs no building approval, and neither does a fence up to 7 feet high in Delaware County¹⁴. Replacing a furnace or water heater does need approval¹⁴. A barn or other building used for agriculture can be exempt from the Ohio building code once a county or township zoning inspector issues a zoning certificate declaring it agricultural, and Building Safety posts a Claim of Agricultural Exemption form for the county-zoned townships¹⁵¹⁶. A pole building that exceeds the code's prescriptive limits needs a sealed engineered plan¹³.

Who issues building permits in Delaware County, and how do you apply?

Delaware County Building Safety, at 1610 State Route 521 north of the city of Delaware, is the permit office; call (740) 833-2200 or email [email protected]⁶. Applications are emailed, not mailed: residential submittals go to [email protected], and every document must be a PDF⁶. You can check your permit's status on the county's public portal 72 hours after you submit everything⁶.

For a new house, the application must come with a certified house number, a zoning permit, a drainage permit if the lot is 1 acre or more, and a septic permit if you are not on public sewer¹³. Building Safety does not accept packets that are missing required documents, so collect the approvals below first¹³. Several other Delaware County offices share the same 1610 State Route 521 building: the County Engineer, the Regional Planning Commission and the Soil and Water Conservation District¹⁷¹⁸⁵. Search results often mix this county up with Delaware County, Pennsylvania; check for the 740 area code and a Delaware, Ohio address⁶.

Does Delaware County, Ohio have zoning?

Yes. All of unincorporated Delaware County is zoned, and a zoning certificate is required before you build². Most townships run their own zoning office; the Regional Planning Commission keeps a list of every township and village zoning contact¹⁹. Marlboro, Radnor and Thompson townships are zoned by the county instead, through the Delaware County Zoning Resolution, and their zoning permits come from Building Safety at 740 833-2225³.

In those three county-zoned townships, land not otherwise zoned falls in the Farm Residence district⁸. A home lot there must have at least 85,000 square feet (1.951 acres), one single-family dwelling is allowed per parcel, and permanently sited manufactured homes count as single-family dwellings⁸. Each new home needs at least 950 square feet of finished habitable area, and the house must sit at least 80 feet from the rear lot line⁸. You may build a barn or garage before the house⁸. When you apply, the building site must be staked, and a new lot needs its certified address certificate³. A county zoning permit lasts up to 18 months³. In the other townships, ask that township's zoning office for its lot-size, setback and minimum-home-size rules.

How do septic permits work in Delaware County?

The Delaware Public Health District permits household sewage treatment systems for 1-, 2- and 3-family homes where sewer connection is not feasible⁴¹⁰. The process starts before the health district gets involved: a soil evaluation is required for every lot, plus a to-scale system design and a house floor plan⁷. Any room with an egress window, a closet and at least 70 square feet counts as a bedroom for sizing⁷. The system area must be fenced off (usually with silt fence) before the site review, and design review takes about 7-10 days⁷. The 2026 fees are $750 plus a $74 state fee for a new system permit, plus $250 each for site review and design review²⁰.

Plan for a mound or other engineered system. The NRCS rates 0% of Delaware County's soils free of severe limits for a conventional drain field²¹. Ohio caps an installation permit at one year and requires an operation permit for the system's life²². In Delaware County, operation permits run 1 or 5 years depending on the system type⁷. The health district's septic approval is what clears your building permit, and a homeowner can install their own system after meeting registration requirements⁷.

Can you live in an RV or tiny home on your land in Delaware County?

In Marlboro, Radnor and Thompson townships, the county-zoned areas, you can live in an RV or mobile home only while your house is being built, for up to 18 months from the date of the zoning permit⁸. The RV has to go within 30 days after that period ends or within 30 days of your occupancy permit, whichever comes first⁸. Guests may stay in a camper or motor home for no more than 30 days a year⁸.

A tiny house under 950 square feet cannot be the home on a Farm Residence lot, because each new house needs at least that much finished living area⁸. In the other townships, the township's own zoning resolution decides RV and tiny-home questions; call its zoning office before you buy¹⁹. Ohio's campground rules cover licensed campgrounds only, not your own parcel²³. A manufactured home cannot be occupied until the state inspector issues its inspection seal²⁴.

What are the steps to build a home in Delaware County, Ohio?

Check the zoning. Find your township's zoning office on the Regional Planning Commission list; in Marlboro, Radnor or Thompson, call County Zoning at 740 833-2225¹⁹³.
Hire a soil scientist for the soil evaluation and have the septic system designed; the health district requires both before its site review⁷.
Get the septic installation permit from the Delaware Public Health District at (740) 368-1700, and a well permit too if you need a well¹⁰⁹.
On a parcel of 1 acre or more outside a platted subdivision, apply for a Drainage Review Permit from Soil and Water; allow about one week⁵.
Get a driveway permit from the County Engineer, or from the township in Berlin, Genoa, Harlem, Kingston, Porter, Scioto or Trenton¹⁷.
Stake the site, post the address and get your zoning certificate³.
Email the full building permit package to Building Safety at [email protected]⁶.
Meet the drainage mitigation requirements before Building Safety will schedule your final occupancy inspection⁵.

What should you check before you buy land in Delaware County?

Ask the health district whether a lot can take a septic system before you buy it: the Delaware Public Health District inspects proposed parcels for enough septic area and offers a lot feasibility review¹⁰. The 2026 lot feasibility fee is $200 per lot²⁰. Also find out how close public sewer is: Ohio requires a new home to connect when any lot line is within 300 feet of an available sewer²⁵.

If you plan to split land, a new parcel under 5 acres is a subdivision under Ohio law²⁶. A no-plat lot split in Delaware County goes through the Regional Planning Commission and needs sign-off from zoning, the health department and the County Engineer¹⁸. Check flood maps too: the building application asks whether the property has floodplain, and a floodplain application is required if it does¹³.

Land here is expensive and close to Columbus. Farmland averages about $9,771 an acre, the nearest metro area is 23 miles away, and density is about 523 people per square mile²⁷²⁸²⁹. The median property tax bill is $6,896, at an effective rate of 1.6%³⁰³¹.

Watch-outs

On parcels of 1 acre or more outside a platted subdivision, Delaware County's Drainage Review Permit must be obtained before you apply for the building permit, and a driveway culvert needs a plan or letter from a professional engineer⁵.
Conventional drain fields rate poorly on all of Delaware County's soils (0% free of severe limits), so expect a soil scientist's evaluation and often a mound or other engineered septic system²¹⁷.
From February 1 to June 1 the Delaware County Engineer cuts weight limits on selected roads by 40%, which can hold up concrete and lumber deliveries; check the posted-roads list before scheduling¹⁷.
In the county-zoned townships, living in an RV on your lot is allowed only during construction, for up to 18 months from the zoning permit⁸.
Delaware County has not stated an owner-builder rule for building permits; confirm with Building Safety before planning to do your own permitted work¹¹⁶.

Sources

Written September 24, 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 Delaware County scores

Seclusion10100% ev.

Self-Sufficiency65100% ev.

Admin Boringness4090% ev.

Durability82100% ev.

Property Autonomy35100% ev.

Carry Cost54100% 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 →

$525kTypical home

1.6%Property tax

$9,771Land / acre

40.8"Annual rain

0.6% of yrsSevere drought

3.3 / yr (+3.3)Mid-century 100°F days

11.5 daysMid-century dry spell

1.59" (+8.7%)Mid-century 1-day rain

1.84×Wildfire change factor

100%Forward climate coverage

$1,470Home insurance / yr

0.8% / yrInsurance growth

1.11%Nonrenewal rate

county median (2+ published ZIPs)Insurance basis

977,966People within 30 min

7,752,426People within 2 hr

328,996Radius comparison (15 mi)

522.7People / sq mi

5.6%Federal land

98.3%Land at 15% slope or less

0%Septic soil without severe limits

23 acWorkable land screen

31.2%Wooded land

61.1 tonsBiomass / forest ac

51.9°FAvg temp

Answers from the rulebook for Delaware County

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

Delaware County rules

County-wide zoningPresent
Zoning applies countywide, administered by townships or the county; a zoning certificate/permit is required before development in unincorporated areas.
Delaware County Code Compliance - Zoning Permit Application ↗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
Who permits septicMixed
Statewide regulation and implementation of sewage treatment systems (STS), including household sewage treatment systems, by the Ohio Department of Health and boards of health in the applicable health districts.
- The Department of Health provides statewide rules, technical guidance, and rule interpretation.
- Boards of health approve, deny, permit, inspect, and enforce STS requirements within the health district in which each board has jurisdiction.
“The department of health and the board of health are responsible for implementation of this chapter.”
Section 3718.023 | Approval of installation, operation or alteration of sewage treatment systems ↗Re-checked Sep 12, 2026
Septic permitRequired
Installation of a new or replacement sewage treatment system or alteration of an existing sewage treatment system in Ohio.
- A board of health must require a site review before accepting the permit application.
- The site review includes the application and fee, a soil evaluation, and an STS design; the soil-evaluation requirement may be waived based on small lot size, an alteration, or an incremental repair plan.
- The permit includes the completed application and fee, an approved site review, and proof of Ohio EPA Class V injection-well registration if applicable.
- An approved installation or alteration permit is valid for one year and may be extended by the board of health for an additional six months.
- A separate approved and valid operation permit is required to operate an STS or a type 2, 3, or 4 gray-water recycling system; its expiration may not exceed ten years.
site review validity: 5 years (Provided there are no changes to site conditions or STS design, including the sewage source.) · installation or alteration permit validity: 1 year (Board of health may extend the permit for an additional six months.) · operation permit maximum validity: <= 10 years (Frequency is determined by the board of health.)
“without an installation or alteration permit issued by the board of health.”
Rule 3701-29-09 | Site review and permits for STS installation and operation ↗Re-checked Sep 12, 2026
Septic inspectionRequired
New, replacement, or altered sewage treatment systems and their post-installation operation in Ohio.
- The board of health must inspect the installation in a timely manner; additional inspections may be required by the permit, product approval, or chapter.
- The board of health must inspect the completed system again no later than twelve months after installation approval and assess whether it is operating properly and not causing a public health nuisance or safety hazard.
- A board of health may conduct additional compliance inspections upon a good-faith complaint, probable cause, missing proof of required maintenance, or probable threat to public health.
- Required operation and maintenance may be demonstrated by a service contract or certified maintenance instead of a board inspection when otherwise allowed.
post-approval inspection deadline: <= 12 months · certification to director after post-approval inspection: <= 60 days
“The board of health shall inspect the completed system again not later than twelve months”
Rule 3701-29-09 | Site review and permits for STS installation and operation ↗Re-checked Sep 12, 2026
Well permitRequired
Construction, alteration, sealing, or decommissioning of private water systems, including private wells and test wells, in Ohio.
- A valid permit must be issued by the board of health before construction, alteration, or sealing, except that a person sealing a well or decommissioning a private water system not being replaced must apply no later than five business days afterward.
- Except where specified exceptions apply, no work may begin until the permit is issued and approved.
- Applications require the applicable permit fee, required information, and a fee for at least one water sample for alteration, conversion, or new construction.
- An application becomes a permit upon validation by the local health district.
- Plans are additionally required for specified systems, including systems serving a building, non-one/two/three-family dwellings, cisterns, springs or ponds, flowing-well areas, drive-point wells, buried pressure tanks, gasoline-powered pumps, continuous disinfection or filtration, and certain point-of-entry treatment systems.
post-sealing/decommissioning application deadline: <= 5 business days (Applies when the well or private water system is not being sealed or decommissioned because it is being replaced.)
“No person shall construct, alter or seal a private water system, test well or part thereof, unless a valid permit for the system has been issued”
Chapter 3701-28 | Private water systems ↗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 exemptionConditional
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.
- The exemption in section 3781.06 applies to buildings or structures incident to agricultural use of the land.
- The buildings or structures must not be used in the business of retail trade.
- A building or structure is not considered used in the business of retail trade if fifty per cent or more of gross income from sales of products in the building or structure comes from products produced or raised in a normal crop year on farms owned or operated by the seller.
- Under section 3781.061, a county zoning inspector under section 303.16 or township zoning inspector under section 519.16 must issue a zoning certificate declaring the specific building or structure is to be used in agriculture for the additional exemption described there.
- The cited section 3781.06 is effective January 1, 2025; section 3781.061 is effective October 17, 2019.
retail-sales agricultural-product threshold: >= 50 percent of gross income (Products must be produced or raised in a normal crop year on farms owned or operated by the seller.)
“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
Subdividing landRegulated (with conditions)
Subdivision and platting of land in Ohio, including divisions of parcels and plats outside municipal corporations.
- A subdivision includes division of a parcel into two or more parcels, sites, or lots when any one is less than five acres for immediate or future transfer of ownership.
- A division or partition into parcels of more than five acres is exempt when it does not involve new streets or easements of access.
- A sale or exchange between adjoining lot owners is exempt when it does not create additional building sites.
- A planning authority may adopt a rule under section 711.133 exempting parcels of four acres or more within the size range delineated in that rule.
- Improvement of land involving division or allocation for opening, widening, or extension of public or private streets, or for common open spaces or utility easements, is also included in the statutory subdivision definition.
- No plat certifying lands outside a municipal corporation may be recorded without approval by the board of county commissioners, except where approval is required from a planning commission under sections 711.09 or 711.10.
- The cited section 711.001 states an effective date of July 1, 2010; the cited section 711.041 states an effective date of October 6, 1955.
subdivision parcel threshold: < 5 acres (The statutory definition applies when any resulting parcel, site, or lot is less than five acres.) · exempt parcel size: > 5 acres (Division or partition into parcels of more than five acres is exempt if no new streets or easements of access are involved.) · possible planning-authority exemption threshold: >= 4 acres (Only if the planning authority adopts a rule under section 711.133 and only within the size range delineated in that rule.)
“No plat certifying lands outside a municipal corporation may be recorded without the approval thereon of the board of county commissioners”
Section 711.001 | Plat 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

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 building requirements in Delaware County.
Certificate of occupancy — Certificates of occupancy or use for buildings in unincorporated Delaware County.
Zoning districts — Published zoning district maps and district classifications in Delaware County.
Minimum dwelling size — Minimum dwelling-size requirements in Delaware County.
Minimum lot size — Minimum lot-size requirements in Delaware County.

11 more unanswered

Setbacks
Lot coverage
Building height
Living in an RV
Camping on your land
Tiny homes
Accessory dwellings
Off-grid sanitation
Driveway access
Building in a floodplain
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 Delaware County, Ohio

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

Delaware County scores 34/100 on the Bolthole Index, a marginal county profile. Its strengths: a durable current and mid-century hazard profile and workable self-sufficiency basics (40.8″/yr rainfall). Watch-outs: about 977,966 people within a 30-minute drive and a weaker property-autonomy legal backdrop.

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

Delaware County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Delaware Public Health District (general health district under Ohio Dept of Health). Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Delaware County, Ohio?

Land in Delaware County runs about $9,771 per acre, based on the latest county data.

What is the water situation in Delaware County?

Delaware County gets about 40.8" of rain a year, with severe drought in roughly 0.6% of years.

How remote is Delaware County?

A representative private-land location has about 977,966 people within a 30-minute drive and 7,752,426 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 Delaware County, Ohio

At a glance

Who to call

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

Who issues building permits in Delaware County, and how do you apply?

Does Delaware County, Ohio have zoning?

How do septic permits work in Delaware County?

Can you live in an RV or tiny home on your land in Delaware County?

What are the steps to build a home in Delaware County, Ohio?

What should you check before you buy land in Delaware County?

Watch-outs

Sources

Delaware County in Ohio

How Delaware County scores

Find land. Bring the promising ones back.

Parcel due diligence

Answers from the rulebook for Delaware County

Delaware County rules

Ohio rules that apply here

Still unanswered

Living off-grid in Delaware County, Ohio

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

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

How much does land cost in Delaware County, Ohio?

What is the water situation in Delaware County?

How remote is Delaware County?

How Delaware compares in Ohio