Ashland County

Permit responsibility in unincorporated Ashland County is split three ways and the County Engineer is NOT one of the three. (1) Township zoning permits for residential construction (including ADUs as accessory residential structures, where allowed) are issued by the zoning inspector of the township the parcel sits in - applicants must contact the specific township inspector directly. (2) The Ohio Building Code residential standard is administered for unincorporated areas by the City of Ashland Building and Zoning Department's Engineering Office under a service contract; commercial construction in unincorporated territory also routes to that office. (3) Floodplain development permits in unincorporated areas are administered by the county's designated floodplain administrator under the county's participation in the National Flood Insurance Program. The Ashland County Engineer (1511 Cleveland Ave, Ashland OH 44805, (419) 282-4281) explicitly issues no zoning or building permits; the Engineer's office handles right-of-way permits and special-hauling permits only. An ADU project in unincorporated Ashland County therefore typically requires: a township zoning permit (if the township is zoned), a building permit from the City of Ashland Building and Zoning Department, a floodplain development permit if mapped in an SFHA, on-site sewage approval from Ashland County Health Department where no public sewer is available, and an address assignment.

Process overview: Typical Ashland County unincorporated ADU workflow: (1) Identify the township the parcel sits in and confirm whether that township has adopted zoning (13 of 15 townships have; Hanover and Mohican have not). (2) If zoned, contact the township zoning inspector to confirm the parcel's zoning district, whether ADUs / accessory residential structures are permitted, conditional, or prohibited in that district, and to obtain a zoning permit. (3) Apply for an Ohio Building Code residential permit through the City of Ashland Building and Zoning Department's Engineering Office, which serves as the certified building department for unincorporated Ashland County. (4) Submit a floodplain development permit application to the county's floodplain administrator if the parcel is in a FEMA Special Flood Hazard Area. (5) Apply for on-site sewage / septic approval through Ashland County Health Department if the parcel is not on public sewer. (6) Receive an address from the county addressing authority. (7) Construct with required inspections; receive Certificate of Occupancy from the City of Ashland building official.

Impact fees: Ashland County itself does not levy a county impact fee on residential construction. Fees paid on an unincorporated ADU project are itemized by issuing authority: the township zoning permit fee (set by each township and typically a flat-rate residential fee in the $50-$250 range), the City of Ashland Building and Zoning residential permit fee schedule (Chapter 1315 of the Ashland Codified Ordinances - this is the fee schedule that applies even when the construction is in unincorporated territory because Ashland City is the building department of record), the floodplain development permit fee if applicable, and a county health-department septic fee where applicable. Confirm all current fee schedules with the issuing office at intake.

The Ashland County Auditor is the elected county official responsible for valuing all real property in Ashland County for property-tax purposes, including new ADU improvements that are added to a host parcel. Like every Ohio county, Ashland follows the Ohio Department of Taxation's mandated valuation cycle: a sexennial (six-year) full reappraisal in which every parcel is physically reviewed, and a triennial (three-year) update between reappraisals that adjusts values based on local sale data. Ashland County's most recent county-wide reappraisal raised residential values approximately 36% on average (per Ashland Source coverage of the 2023 reappraisal). New ADU square footage and exterior changes are picked up either through the building-permit feed from the City of Ashland Building and Zoning Department (which provides certificates of occupancy and permit data to the Auditor) or through the Auditor's field-canvass during reappraisals. Ohio's owner-occupancy 2.5% reduction and the Homestead Exemption (for qualifying senior, disabled, or surviving-spouse owner-occupants) apply to the principal residence on the parcel but do not exempt the value added by new ADU improvements. An ADU built and rented (not owner-occupied) does not by itself revoke the principal-residence owner-occupancy reduction on the rest of the parcel, but renting the principal residence itself does.

Assessment policy: Sexennial full reappraisal and triennial update cycle, mandated statewide by the Ohio Department of Taxation. New ADU improvement value is added to the parcel's improvement value on the next valuation cycle following construction, picked up via building-permit data flowing from the City of Ashland Building and Zoning Department and through field canvass. Owner-occupancy 2.5% reduction and Homestead Exemption attach to the principal residence on the parcel and reduce tax owed on that portion but do not exempt the added ADU improvement value. Valuation challenges go to the Ashland County Board of Revision under ORC Chapter 5715.

Ashland County's primary cross-county overlay is FEMA NFIP floodplain regulation, administered by the county's floodplain administrator for unincorporated territory under the county's NFIP participation. There is no countywide coastal overlay (Ashland is inland), no wildland-urban-interface fire overlay analogous to western states, and no countywide historic-preservation overlay - the City of Ashland and a handful of village downtowns maintain their own historic-district designations but those are municipal, not county. The Mohican State Forest and the Mohican-Memorial State Park complex in the southern part of the county (Hanover and Green Townships, near Loudonville) create de facto development constraints because much of that land is publicly owned and not subject to private ADU development, but they are not zoning overlays per se. Stream-corridor and Mohican River floodplain regulation is the most operationally significant overlay an ADU applicant in Ashland County is likely to encounter.

• FEMA NFIP Special Flood Hazard Areas in Ashland County — City of Ashland operates its own FEMA Flood Map portal at https://gis.ashland-ohio.com/portal/home/item.html?id=257eab06a5ec41dbb1c30ba397520a40 for parcels inside the city; unincorporated parcels are administered by the county. Critical facilities must be sited outside the SFHA when feasible.
• Mohican State Forest and Mohican-Memorial State Park — Hanover Township, which contains much of the state-forest land, is itself unzoned at the township level - any ADU built on private inholdings or adjacent private parcels there is constrained primarily by Ohio Building Code, floodplain regulation, and septic/well requirements rather than by township zoning.
• Unzoned townships: Hanover and Mohican — Even in unzoned townships, applicants should expect to obtain an Ohio Building Code permit, a floodplain permit if applicable, and a septic permit. The absence of township zoning does not mean absence of all regulation.