Geauga County

ADU Pass helps homeowners in Geauga County, Ohio navigate the permit paperwork for building an accessory dwelling unit. We cover 12 cities and 14 ZIP codes in this county.

14 ZIP codes
12 Cities

County ADU details

County ADU ordinance

Geauga County has NOT adopted a countywide zoning resolution under O.R.C. Chapter 303. The Geauga County Planning Commission (established January 1, 1957 by the Board of County Commissioners) does not exercise zoning authority over the unincorporated portions of the county; its statutory roles are (a) enforcement of the Geauga County Subdivision Regulations, (b) advisory review of township zoning text and map amendments before they go to township trustees for adoption, (c) preparation of the county land-use plan, and (d) census-data analysis. Land-use authority over ADUs rests at the township level (O.R.C. Chapter 519) for the 16 civil townships, and at the municipal level for the city of Chardon and the villages of Aquilla, Burton, Chagrin Falls (the portion in Geauga), Hunting Valley, Middlefield, and South Russell. To assist the townships, the Planning Commission maintains a Model Township Zoning Resolution (most recent revision 2022-12-20, v2) that townships may adopt or adapt; uptake is voluntary and the operative ADU rule in any given township is the township's own adopted resolution, not the model. The Model resolution defines 'dwelling unit' but does not establish an ADU-by-right category, so accessory-dwelling permissibility under township-adopted derivatives of the model typically requires conditional-use review or a variance from the township Board of Zoning Appeals. There is no county-side ADU ordinance to cite; the operative ADU rule for any given parcel is decided at the township-trustee or village/city-council level.

Code citations:

State-floor overlay: Ohio has no statewide ADU preemption (see state-level research). Construction is governed by the Residential Code of Ohio (RCO) for one- and two-family dwellings under O.R.C. § 3781.10 and OAC 4101:8, enforced through the Geauga County Building Department. The Ohio Department of Health regulates Home Sewage Treatment Systems under OAC Chapter 3701-29, with local enforcement at the Geauga Public Health (formerly Geauga County General Health District) Operation & Maintenance Program. There is no state-imposed floor on ADU permissibility, parking, owner-occupancy, or size; those decisions are made at the township or municipal level.

Adopting body: Geauga County Board of County Commissioners (has not adopted countywide zoning under O.R.C. Chapter 303). Township trustees and municipal councils are the adopting bodies for the operative ADU rules.

County permitting (unincorporated parcels)

The Geauga County Building Department (Bureau of Inspections and Licensing), at 12611 Ravenwood Dr., Suite #360, Chardon, OH 44024 (phone 440-279-1780, fax 440-286-9177, email building@geauga.oh.gov), is the certified building department enforcing the Residential Code of Ohio (OAC 4101:8) and the Ohio Building Code countywide. Daniel Spada is the Chief Building Official; Michael Davet is the Assistant Building Official. Permit search, status, and inspection scheduling run through the Tyler eSuite portal (geaugacountyoh.nwerp.tylerapp.com/nwprod/eSuite.Permits/WelcomePage.aspx). Geauga is unusual relative to most Ohio counties in that a residential building permit application requires SEVEN concurrent or sequential sub-approvals — driveway permit, zoning permit (township/village/city), septic permit (Geauga Public Health), sewer permit (where applicable), flood determination permit, plumbing permit (Geauga Public Health, 440-279-1900), AND a soil and water permit (Geauga Soil and Water Conservation District). The soil-and-water permit is itself non-trivial: the Geauga SWCD (12611 Ravenwood Dr., Suite #240, Chardon, OH 44024; 440-834-1122; geaugaswcd@geauga.oh.gov) requires a Water Management and Sediment Control (WMSC) plan for any construction (including septic) on a sublot within a subdivision, any disturbance over one acre, OR any project over 300 square feet specifically in Auburn, Bainbridge, Claridon, Hambden, Munson, Newbury, Russell, Thompson, and Troy Townships. For an ADU built in any of those nine townships, the WMSC plan is effectively always required because a typical ADU footprint exceeds 300 sq ft.

DepartmentGeauga County Building Department (Bureau of Inspections and Licensing)
Address12611 Ravenwood Dr., Suite #360, Chardon, OH 44024

Process overview: For an ADU on a Geauga County parcel: (1) Confirm the parcel's township or municipality and contact that jurisdiction's zoning office (the Planning Commission can route the inquiry at 440-279-1740). The township determines whether the parcel's zoning district allows an ADU as a permitted accessory use, requires a conditional-use hearing before the township Board of Zoning Appeals, or prohibits the use. (2) Obtain a Driveway Permit from the Geauga County Engineer (county roads) or the township road department (township roads), as applicable to the parcel's frontage. (3) Obtain a Septic Permit from Geauga Public Health (Household Sewage Treatment Systems program) for any project adding a new dwelling unit or living area; most Geauga County rural parcels are on private well and septic — the county has approximately 30,000 HSTSs and is subject to the mandatory Operation & Maintenance Program under OAC Chapter 3701-29 (effective 2015), requiring an active O&M permit on every HSTS. (4) Obtain a Plumbing Permit from Geauga Public Health (440-279-1900). (5) Obtain a Flood Determination Permit from the Building Department (under the Geauga County Special Purpose Flood Damage Reduction Resolution, which implements the FEMA NFIP for unincorporated parcels). (6) Obtain a Soil and Water Permit (WMSC plan) from the Geauga SWCD if the parcel is in Auburn, Bainbridge, Claridon, Hambden, Munson, Newbury, Russell, Thompson, or Troy Township OR the project is in a subdivision OR disturbance exceeds one acre. (7) Assemble the Residential Building Permit Application with the Application for Residential Building Permit form, complete construction drawings meeting the RCO Construction Document Requirements, contractor information, and proof of each prerequisite approval. (8) Submit through the Building Department; plan review typically 2-4 weeks for a straightforward residential project. (9) On approval and fee payment, the permit issues. (10) Inspections (footing, framing, rough trades, insulation, final) scheduled through the Tyler eSuite portal. (11) Certificate of Occupancy after passing final inspection.

Impact fees: Geauga County does not levy a county-side residential impact fee on ADUs. Building permit fees are cost-recovery charges set by the Building Department's residential fee schedule. Geauga Public Health charges separate per-permit fees for septic and plumbing under the state-published fee schedule. Geauga SWCD charges a separate WMSC review fee. Township and village zoning offices set their own zoning-permit fees. Cumulatively, the seven-permit stack on a Geauga ADU can run materially higher in soft costs than the typical Ohio county where building, zoning, and septic are the only three permits.

County assessor

The Geauga County Auditor (Charles E. Walder, elected) is the statutory assessor for real property in the county under O.R.C. Title 57 (Taxation). The auditor's office is at 231 Main Street, Suite 1-A, Chardon, OH 44024 (phone 440-279-1600). Ohio assessors operate on the statutorily-mandated sexennial reappraisal cycle with a triennial update at the midpoint under O.R.C. §§ 5715.33 and 5715.34. Real property is assessed at 35% of true value (O.R.C. § 5715.01). When an ADU is permitted and constructed in Geauga County, the Building Department's permit feed flows directly to the Auditor's appraisal staff, who field-visit permitted parcels during the calendar year of the permit (the auditor's office publishes a notice that field appraisers will visit all parcels with building or zoning permits issued during the year, between 8:00 AM and 5:00 PM). The improvement value is added to the parcel record and billed beginning the tax year after the certificate of occupancy. The Auditor also administers the Homestead Exemption (O.R.C. § 323.152; $25,000-of-true-value reduction for qualifying senior, disabled, and surviving-spouse owner-occupants meeting the OAGI threshold), the Owner Occupancy Credit (2.5% reduction on owner-occupied residential property tax), and the Current Agricultural Use Value (CAUV) program (O.R.C. § 5713.30) for qualifying agricultural land. Conversion of CAUV-enrolled acreage to non-agricultural use to host an ADU triggers the three-year recoupment of tax savings under O.R.C. § 5713.34.

NameGeauga County Auditor (Charles E. Walder)
Address231 Main Street, Suite 1-A, Chardon, OH 44024

Assessment policy: Geauga County reappraises real estate on Ohio's statutory sexennial cycle (O.R.C. § 5715.33) with a triennial update at the midpoint (O.R.C. § 5715.34). Assessed value is set at 35% of true value (O.R.C. § 5715.01). New construction including an ADU on a host parcel is picked up via the Building Department's permit-to-auditor data feed and additionally via field-appraiser visits during the calendar year of the permit; the improvement value is added as supplemental valuation and billed starting the tax year after certificate of occupancy. The Homestead Exemption (O.R.C. § 323.152) provides a $25,000-of-true-value reduction on the dwelling and one acre for qualifying senior (age 65+) or permanently and totally disabled owner-occupants whose Ohio Adjusted Gross Income falls under the statutory threshold (adjusted annually). The Owner Occupancy Credit reduces tax on owner-occupied residential and agricultural parcels by 2.5%. Both apply only to the principal dwelling on the parcel; an ADU on the same parcel is captured in the parcel-level assessment but does not by itself create a separate homestead.

County overlays (5)

Geauga County's overlay-style constraints that meaningfully affect ADU siting are: (1) FEMA NFIP Special Flood Hazard Areas in the unincorporated county administered by the Geauga County Building Department under the Special Purpose Flood Damage Reduction Resolution (Geauga's FIRM had an initial effective date of November 4, 1988); principal SFHA reaches are along the upper Cuyahoga River (which has its source within the county, at Headwaters Park / former East Branch Reservoir), the Chagrin River and its East, Aurora, and East-Aurora branches, Big Creek, and the headwaters of the Grand River; (2) Geauga Park District holdings, which cover roughly 13,000+ acres including the 926-acre Headwaters Park (leased from the City of Akron in 1996, holding the upper-Cuyahoga-River reservoir) and the 644-acre Big Creek Park in Chardon — Park-District-owned parcels are not developable and adjacent parcels may face Chagrin River Watershed Partners (CRWP) model-ordinance setbacks; (3) the Chagrin River riparian-setback regime, which most Chagrin-Valley townships and villages have adopted via CRWP model ordinances and which can require 75-300 ft riparian setbacks from the river and tributaries; (4) the Geauga County Operation & Maintenance Program for Household Sewage Treatment Systems (OAC 3701-29, effective 2015) — every one of the county's approximately 30,000 HSTSs requires an active O&M permit and periodic inspection, and an ADU on a private-septic parcel typically triggers a system-capacity review by Geauga Public Health and frequently a drainfield enlargement or advanced-treatment upgrade; (5) the Geauga County Amish settlement (centered on Middlefield, with 88 church districts and approximately 20,980 Amish residents as of 2024 — the second-largest Amish settlement in Ohio and fourth-largest in North America), which has distinct construction-practice patterns (Amish contractors, non-grid-tied utilities, hand-tool construction) that may interact with permit-process expectations but does not create a separate legal overlay; (6) CAUV-enrolled agricultural land, particularly across the central and eastern county, where conversion to non-agricultural use to site an ADU triggers three-year recoupment under O.R.C. § 5713.34.

Known county issues (7)

  • no-county-zoning — Geauga County has NOT adopted countywide zoning under O.R.C. Chapter 303. Land-use authority is entirely at the township and municipal level. An ADU researcher cannot consult a single county zoning code — the operative rule depends on the parcel's specific township (one of 16) or municipality (Chardon, Aquilla, Burton, Chagrin Falls portion, Hunting Valley, Middlefield, South Russell). The Planning Commission's Model Township Zoning Resolution (2022-12-20 v2) is a drafting template, not the operative rule; each township adopts its own variation. Start with the Geauga County Planning Commission (440-279-1740) to identify the correct local zoning office for the parcel.
  • seven-permit-stack — Unlike most Ohio counties where a residential building permit consolidates 2-3 sub-approvals, a Geauga County ADU typically requires SEVEN concurrent or sequential permits: driveway, zoning (township/village/city), septic (Geauga Public Health), plumbing (Geauga Public Health), flood determination (Building Department), soil and water (Geauga SWCD), and the building permit itself. Each carries its own fee, review timeline, and rejection-and-resubmit cycle. ADU project schedules in Geauga should budget 4-8 weeks of pre-build permit time, not the 2-3 weeks typical of simpler Ohio counties.
  • swcd-wmsc-trigger — ADU projects in Auburn, Bainbridge, Claridon, Hambden, Munson, Newbury, Russell, Thompson, or Troy Townships almost always require a Geauga SWCD Water Management and Sediment Control plan because the 300-sq-ft trigger is below typical ADU footprint. The WMSC plan is a separate engineered submittal with its own review and fee, and is enforced concurrently with building-permit issuance. Subdivision-lot ADU projects countywide also trigger WMSC regardless of size.
  • septic-capacity — Most rural Geauga parcels are on private well and septic. The county has approximately 30,000 HSTSs subject to the mandatory Operation & Maintenance Program under OAC 3701-29. Adding an ADU triggers HSTS capacity review by Geauga Public Health and frequently requires drainfield enlargement, an advanced-treatment-unit upgrade, or in some cases a second HSTS. This is often the rate-limiting step on a rural ADU project — engage Public Health (440-279-1900) before committing to ADU design and bedroom count.
  • chagrin-river-setback — Chagrin Valley parcels (Bainbridge, Russell, South Russell, Newbury, Chester, Munson, Auburn townships and the villages of Chagrin Falls, Hunting Valley, South Russell, and Aquilla) are subject to Chagrin River Watershed Partners (CRWP) model riparian-setback ordinances adopted township-by-township. Setbacks of 75-300 ft from the river and its tributaries (scaled by stream order) can effectively foreclose ADU siting on small riparian lots. Screen early in the township's adopted version of the ordinance.
  • cauv-recoupment — Geauga County has substantial CAUV-enrolled agricultural acreage, particularly across the central and eastern county where the Amish farming corridor concentrates. Siting an ADU on previously CAUV-enrolled land that is reclassified to non-agricultural use triggers three-year recoupment of tax savings under O.R.C. § 5713.34 — a material project cost that should be computed with the County Auditor's CAUV staff before committing to placement on CAUV acreage.
  • amish-context — Geauga County hosts the second-largest Amish settlement in Ohio (88 church districts, approximately 20,980 Amish residents as of 2024, centered on Middlefield Township). Amish contractors operate throughout the county and have distinct construction-practice patterns (non-grid-tied utilities, hand-tool construction, gas-lamp interior lighting). These patterns interact with the Residential Code of Ohio in non-obvious ways — for example, an off-grid ADU still must satisfy RCO electrical-code requirements unless granted a specific religious-accommodation interpretation by the Building Official. Non-Amish ADU clients hiring Amish contractors should verify code-compliance scope before contract.
Federal (United States) — ADU-relevant rules and programs

Federal ADU law

The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.

Federal financing programs

Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.

Federal tax credits

There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.

Federal housing programs

HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.