A building permit submittal package on a desk with rolled construction drawings, forms on a clipboard, and a hard hat.

Permitting & Approvals in Ohio

Are barndominiums allowed in Ohio? Yes. A barndominium you live in is a house under the Residential Code of Ohio, and the real question is what your particular parcel requires. That answer comes from up to four different offices: the township, county or city that zones the land, the building department certified for residential work if one covers it, the local health district that permits your septic system and well, and whoever maintains the road your driveway meets. We work out which of them has a say over your land, prepare the plans and applications each one needs, and carry the approvals through so construction can start on schedule. Because it is the same team that designs and builds the home, the answers go straight into the drawings instead of arriving as surprises halfway through the job.

Permit-ready stamped drawings
Built to the Residential Code of Ohio
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Permitting & Approvals: how the work runs

Four stages, in this order. The sequence matters more than it looks: getting engineering and permitting settled before anything is fabricated is what keeps a build from stalling.

1

Find out who has jurisdiction

We start with your parcel address. Is it inside a city or village, or in the unincorporated part of a township? Has the township or county adopted a zoning resolution? Does a building department certified by the Ohio Board of Building Standards for residential work cover it? We check the Board's building department look-up and confirm with the listed office, then identify the health district and the road authority. You get a one-page map of who approves what before any drawing is paid for.

2

Zoning clearance: is a barndominium allowed here?

Township trustees zone unincorporated township land under ORC Chapter 519, county commissioners zone unincorporated county land under ORC Chapter 303, and cities and villages run their own zoning. Both township and county zoning are optional, so some rural land has no zoning resolution at all. Where there is one, we read the district rules for use, setbacks, height and building size, and apply for the zoning certificate for the house. Where the plan also includes a separate barn, we look at whether the agricultural rules apply to that building.

3

Plans and the building department

Where a certified residential building department has jurisdiction, we prepare and submit the plan set, answer plan-review comments and schedule every inspection through to the certificate of occupancy. Frost depth and ground snow load are set by that local department, not by the state, so we design the foundation and roof to its published figures. Where no certified department has jurisdiction, the owner is not required to submit plans for approval, and we still build to the Residential Code of Ohio.

4

Septic, well and driveway permits

The local health district issues the septic permit, and it applies whether or not a building department covers your land. Before it accepts the application it requires a site review with a soil evaluation by a certified soil scientist, and the system is sized by bedroom count. A new private well needs its own health-district permit before drilling starts. A new driveway onto a public road usually needs a permit from whoever maintains that road, so we find that office and apply alongside everything else.

Overhead view of architectural floor plan and structural elevation drawings spread on a workbench with a scale ruler and pencil.
One code, local enforcement

Ohio has a statewide residential code. Whether anyone inspects your build depends on where your land is.

Ohio has one statewide residential code, the Residential Code of Ohio, adopted by the Board of Building Standards and based on the 2018 International Residential Code, as amended. Local governments cannot write their own version of it. What varies from place to place is enforcement. Whether your build is plan-reviewed and inspected depends on whether a building department certified by the Board of Building Standards for residential work covers your land. Many cities, villages and counties have one, and a few townships do. Under ORC 3791.04 and section 101.5 of the Residential Code of Ohio, where no certified residential building department has jurisdiction, the owner is not required to submit plans for approval, request inspections or obtain a certificate of occupancy. That does not make the code optional as a standard, and it does not touch zoning or the health district, whose septic and well permits apply either way. For a barndominium buyer, the practical result is that two neighbouring parcels can have very different approval paths, and the first job is finding out which one yours is on.

Where we deliver permitting & approvals

In Ohio the code is the same everywhere, but who enforces it is not. A city, a village, a township or the county may run the certified building department that reviews your drawings, and in some unincorporated areas none does. Township and county zoning, the health district that permits your septic system and well, and the frost depth and snow load your department publishes all change from one parcel to the next. We work out which of them apply to your land before anything is priced.

Serving clients across the entire region.

Every locality we build in has its own reviewer, its own fee schedule and its own filled-in design criteria. The service area pages set out what each one publishes.

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Before you commit

What actually decides the price

Square footage is the number everyone leads with, and it is rarely the one that moves a barndominium budget. These four do.

  • Whether a certified building department covers the parcel

    A parcel under a certified residential department means a full plan set, plan-review time, inspections at each stage and a certificate of occupancy, all of which add fees and schedule. A parcel without one skips those submissions, but the house is still built to the same Residential Code of Ohio, so the drawings do not get cheaper. We tell you which case you are in at the first meeting.

  • Zoning district and lot conditions

    Where a township, county or city zones the land, setbacks, height limits and minimum floor area can shape the building, and a district that does not allow the use you want means a longer approval path or a different lot. Land with no zoning resolution skips that step entirely. We read the district text before you buy if we can.

  • Soil, septic design and the well

    Ohio sizes household septic systems at 120 gallons per day per bedroom, with a 240-gallon minimum, and the health district can require more. The soil evaluation decides what kind of system your lot can take and where, and the site also has to hold a replacement area. A well adds its own permit and its own placement limits.

  • Road access and utilities

    A long driveway, a culvert under a ditch or an entrance onto a busy road can each add a permit and a cost. So can the distance to the nearest power line. These are easy to overlook when buying land, which is why we look at them before you close if we can.

A building permit submittal package on a desk with rolled construction drawings, forms on a clipboard, and a hard hat.

Permitting & Approvals in Ohio: common questions

8 questions we get asked most often about building in Ohio. If yours is not on the list, ask it directly.

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Are barndominiums allowed in Ohio?
Yes. Nothing in Ohio law singles out barndominiums. A barndominium people live in is a one-family dwelling under the Residential Code of Ohio, built to the same standard as any other house. Whether you can build one on a particular lot is a zoning question, and zoning in Ohio belongs to the city or village, the township, or the county, depending on where the land is. Where zoning applies it can regulate the use, setbacks, height and size of the building, and some rural land has no zoning resolution at all. We check your parcel's zoning before you commit to drawings.
Does Ohio have a building code for barndominiums?
Yes. Ohio has one statewide residential code, the Residential Code of Ohio, based on the 2018 International Residential Code, as amended, and it covers every one-, two- or three-family dwelling, including a barndominium. The code sets some design values statewide, such as a 115 mph design wind speed and ice-barrier underlayment on roofs. Others are left to the local jurisdiction. Frost depth and ground snow load are set by your local building department, not by the state. What is not statewide is enforcement, which depends on whether a certified residential building department covers your land.
Do I need a building permit to build a barndominium in Ohio?
It depends on where the land is. Whether your build is plan-reviewed and inspected depends on whether a building department certified by the Board of Building Standards for residential work covers your parcel. Under ORC 3791.04, where no certified residential building department has jurisdiction, the owner is not required to submit plans for approval, and section 101.5 of the Residential Code of Ohio adds that inspections and a certificate of occupancy are not required either. Even then, the health district's septic and well permits still apply, zoning may still require a certificate, and the house is still built to the Residential Code of Ohio.
My land is zoned agricultural. Is my barndominium exempt?
Not the part you live in. Ohio's agricultural exemption covers farm buildings, not homes. The building code exemption in ORC 3781.06 and the zoning exemption in ORC 519.21 and 303.21 all turn on a building being incident to the agricultural use of the land, and in our reading a barndominium someone lives in is a dwelling, whatever the land is zoned. A separate barn used for farming is a different case and may qualify. A shop attached to the living space raises its own questions, so we ask the certified department for its view before we design around it.
What is the difference between township and county zoning in Ohio?
Both apply only to unincorporated land. Township trustees may adopt zoning for the unincorporated part of their township under ORC Chapter 519, and county commissioners may adopt zoning for unincorporated county land under ORC Chapter 303. Inside a city or village, the municipality's own zoning applies instead. Both township and county zoning are optional, so you will find townships with a detailed zoning resolution next to rural areas with none at all. Where zoning does apply, it governs what you can build and where on the lot: use, setbacks, height and building size.
How is a septic system permitted for a barndominium in Ohio?
Through your local health district. Before it accepts a permit application for a new system, the board of health requires a site review, which includes a soil evaluation by a certified soil scientist or classifier. The system is sized by bedroom count: the state rule is 120 gallons per day per bedroom, with a minimum of 240, and the board can require a higher flow. The lot also needs room for a replacement area. This permit applies whether or not a building department covers your land, so it is often the first approval we start on.
Do I need a permit to drill a well?
Yes. Under Ohio's private water system rules, no one may construct a private water system or well without a valid permit from the board of health, and work cannot begin until the permit is issued. We coordinate the well permit with the septic design, because both compete for space on the same lot and have to be placed with each other in mind.
Do my barndominium plans need an architect's or engineer's stamp in Ohio?
Not for the house itself. Ohio law does not require an architect's or engineer's seal on plans for a one-, two- or three-family dwelling, and it allows plans for those buildings to be prepared by people who are not architects or engineers. Where a certified building department reviews the plans, it can still ask questions about any part of the design. We prepare the plan set, and where a detail calls for a stamped design, a licensed Ohio professional engineer seals that part.

Keep reading

The pages that answer the next question this one raises.

Is It Legal in Ohio?

Who enforces the Residential Code of Ohio where you build, and where the agricultural exemption stops.

Read it

How Long Does It Take?

The 30-business-day statutory review clock, and how the private-provider route shortens it.

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Where We Build

Which authority actually reviews your parcel, city by city.

Read it

Ready to put permitting & approvals against a real plan? Start there and the rest follows.

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Tell us about the land

Send the parcel ID or an address and we will come back with what can be built on it, the wind load it has to meet, and a realistic budget range. That conversation costs nothing.

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