Building permits, zoning and septic rules in Guernsey County, Ohio

At a glance

Residential building permit

Mid-East does not cover one-, two-, or three-family homes; ask whether a certified township or municipal residential department has jurisdiction⁶³

Commercial building permit

Mid-East Ohio issues plan approvals and performs inspections for commercial work within its Ohio Building Code authority¹²

Zoning

No countywide zoning; township and municipal rules remain parcel-specific⁴⁷

Septic permits

Cambridge-Guernsey County Health Department⁵⁸

Wells

A valid private-water-system permit is required⁹

Driveway access

County Engineer permit required for a new or widened county-road connection¹⁰

Owner-builder

Residential-code relief is conditional on no certified residential building department having jurisdiction; manufactured-home self-installation has separate conditions¹¹¹²

Septic soils

Only 1.5% of soils lack severe limits for a conventional drain field¹³

Who to call

Contact details are copied from each office’s official page and were checked against it on October 7, 2026.

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

The Mid-East Ohio Building Department is Guernsey County's state-certified commercial building department: it issues plan approvals and inspects work regulated by the Ohio Building Code, but it has no authority over one-, two-, or three-family homes⁶. We could not confirm whether a certified residential department serves every township or municipality. Where one has jurisdiction, the owner must submit residential plans before construction, obtain approval, request inspections and receive an occupancy or completion certificate before occupancy³¹⁴¹⁵. Where no certified residential department has jurisdiction, Ohio's residential-code owner-builder relief removes those code submissions, inspections and certificates, but not zoning, septic, floodplain or other approvals¹¹. Mid-East commercial projects require final inspections and paid fees before an occupancy certificate is issued¹⁶. Septic, well, driveway and subdivision approvals remain separate^1791018.

Who issues Guernsey County building permits, and how do you reach them?

The Mid-East Ohio Building Department handles commercial plan approvals and inspections for Guernsey County at 22 North 5th Street, Zanesville, Ohio, phone (740) 455-7905¹⁹. Mid-East Ohio does not handle one-, two-, or three-family dwellings¹⁹. A home builder should identify the parcel's township or municipality and ask whether a certified residential department has jurisdiction because Ohio departments may enforce only the building-code type for which they are certified²⁰. The Cambridge-Guernsey County Health Department handles household sewage treatment review at 326 Highland Ave. Cambridge, OH 43725, phone 740-439-3577²¹. The Guernsey County Engineer is at 62782 Bennett Ave, Cambridge, Ohio 43725, phone 740-432-2234²². The Engineer requires a permit for a new or widened connection to a county public road¹⁰. The Planning Commission reviews land divisions in unincorporated Guernsey County²³.

Does Guernsey County have zoning?

Guernsey County has no countywide zoning; local township or municipal rules can govern a parcel⁴. The county's land-split application requires compliance with local road-frontage or lot-width and minimum-lot-size rules and directs applicants to the Planning Commission or village zoning inspector⁷. Cambridge maintains municipal zoning, and its manufactured-home transfer form asks for at least 1,600 square feet of living area in SF-1 or 1,000 square feet in SF-2; the source does not establish that those older form standards are current, so confirm them with the City Engineer²⁴²⁵. Unincorporated subdivision plats must show setback lines and conform to any existing zoning resolution, with no uniform county distance stated²⁶. County zoning generally cannot prohibit agricultural land uses or buildings, but specified small-lot subdivision exceptions exist²⁷. A separate building-code exemption requires a county or township zoning certificate declaring the structure agricultural²⁸.

How do septic permits work in Guernsey County?

A new, replacement or altered household sewage treatment system requires a permit from the Cambridge-Guernsey County Health Department²⁹⁸. The department requires an approved site inspection, soil evaluation and layout or design before issuing the installation permit¹⁷. The published schedule lists a $100 site-review application fee and itemizes a $500 local installation-permit fee plus a $74 state remittance for a new or replacement household system³⁰. Only 1.5% of county soils lack severe limitations for a conventional drain field¹³. Sewage must go to an approved treatment system or sanitary sewer, and a new septic system cannot be sited where sanitary sewer is accessible³¹³². Before burial, installation needs final inspection; the local application calls for notice 24 hours before covering³³. A private well follows a separate permit track⁹.

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

We could not confirm a countywide rule allowing or prohibiting full-time RV or tiny-home occupancy on private land in Guernsey County. Ask the applicable township or municipality about use, placement and dwelling classification because the county land-split application requires compliance with local zoning⁷. Within Byesville, occupying a house trailer or mobile home requires a village permit or an approved Council variance; the ordinance does not use the term RV, so ask the village whether a particular vehicle qualifies³⁴. A manufactured home is different from an RV: statewide installation and occupancy standards apply to every new manufactured home placed on private property, while local zoning, septic and floodplain rules can still apply³⁵. A homeowner may self-install manufactured housing on property the homeowner owns and occupies outside a manufactured-home park only under the state's conditions, including required approvals and inspections¹². Sewage must go to an approved treatment system or sanitary sewer³¹.

What are the steps to build a home in Guernsey County?

1. Identify the township or municipality and ask which zoning authority applies; Guernsey County has no countywide zoning⁴.

1. Ask whether a certified residential building department has jurisdiction; Mid-East Ohio excludes one-, two-, and three-family homes, while residential plan approval, inspections and occupancy certification depend on certified local jurisdiction³⁶³¹⁵.

1. Arrange the site inspection, soil evaluation and system design before applying for the septic permit¹⁷.

1. Apply separately before constructing, altering or sealing a private water system⁹.

1. Obtain the Engineer's permit before connecting or widening a driveway to a county public road¹⁰.

1. For a land split, submit the required survey and legal-description copies with payment, then take approved documents to the Auditor and Recorder²³. Published subdivision-review fees include $100 for a minor lot split, and payment must be by personal check or money order³⁷.

1. For commercial construction, submit plans to Mid-East Ohio and complete its inspections and occupancy-certificate process¹¹⁶.

What should you check before buying land in Guernsey County?

Start with wastewater feasibility: only 1.5% of county soils lack severe limits for a conventional drain field, so make an acceptable site review a purchase contingency¹³. Check terrain and clearing needs because 42.1% of county land is at a slope of 15% or less and 62.5% is wooded³⁸³⁹. Confirm the township or municipal zoning authority and obtain written answers about the intended home, setbacks, RV use and accessory structures⁴. For a platted subdivision lot, review the plat's building setback lines and any more restrictive zoning resolution²⁶. Verify that any recent land split completed Planning Commission, Auditor and Recorder steps²³. Check flood maps and ask which local floodplain rules apply; state-authorized development in a one-hundred-year floodplain must meet state and applicable local requirements⁴⁰. Confirm legal road access and the need for a county-road driveway permit¹⁰.

Watch-outs

• Mid-East Ohio handles commercial work but lacks authority over one-, two-, or three-family homes; ask whether a certified township or municipal residential department has jurisdiction⁶³.
• Guernsey County has no countywide zoning, but township and municipal rules can control parcel use and setbacks⁴.
• Only 1.5% of county soils lack severe limits for a conventional drain field, making early site and soil review essential¹³.

Sources

1. Mid-East Ohio Building Department, quoted and re-checked
2. Mid-East Ohio Building Department, quoted and re-checked
3. Section 3791.04 | Submission of plan - approvals - prohibition - fine, quoted and re-checked
4. Guernsey County Map Department / Planning Commission (2026 county census)
5. Cambridge-Guernsey County Health Department STS Guidance (2026 county census)
6. Mid-East Ohio Building Department, quoted and re-checked
7. Split Application Form, quoted and re-checked
8. Application for Site Review, quoted and re-checked
9. Rule 3701-28-03 | Permits, system approval and sampling requirements, quoted and re-checked
10. FAQ – Guernsey County Engineer, quoted and re-checked
11. Ohio Residential Code, Rule 4101:8-1-01, quoted and re-checked
12. Section 4781.11 | License required for installation, quoted and re-checked
13. Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
14. Section 3781.10 | Board of building standards - powers and duties, quoted and re-checked
15. codes.ohio.gov, quoted and re-checked
16. Mid-East Ohio Building Department General Plan Approval Conditions, quoted and re-checked
17. Guidance on obtaining a Household Sewage Treatment System Permit, quoted and re-checked
18. Subdivision Standards and Regulations for Guernsey County, Ohio, quoted and re-checked
19. Mid-East Ohio Building Department (muskingumcountyoh.gov)
20. Section 3781.10 | Board of building standards - powers and duties, quoted and re-checked
21. Cambridge-Guernsey County Health Department (guernseycountyhealthdepartment.org)
22. Guernsey County Engineer (guernseycountyengineer.com)
23. Instructions for Planning Commission Review, quoted and re-checked
24. Engineer – City of Cambridge, OH, quoted and re-checked
25. Manufactured Home Transfer Inspection - City of Cambridge, quoted and re-checked
26. Subdivision Regulations for Guernsey County, Ohio, quoted and re-checked
27. Section 303.21 | Limitations on powers - agricultural purposes, quoted and re-checked
28. Section 3781.061 | Exemption for building or structure used in agriculture, quoted and re-checked
29. Section 3718.023 | Approval of installation, operation or alteration of sewage treatment systems, quoted and re-checked
30. Cambridge-Guernsey County Health Department Environmental Health Fees — January 2025, quoted and re-checked
31. Rule 3701-29-06 General provisions and prohibitions, quoted and re-checked
32. Rule 3701-29-06 General provisions and prohibitions, quoted and re-checked
33. guernseycountyhealthdepartment.org, quoted and re-checked
34. Planning and Zoning – the Village of Byesville, quoted and re-checked
35. Rule 4781-6-01 | Installation of new manufactured homes, quoted and re-checked
36. Mid-East Ohio Building Department, quoted and re-checked
37. Instructions for Planning Commission Review — Fees, quoted and re-checked
38. Share of land at 15% slope or less: Bolthole Index county data
39. Wooded share of land: Bolthole Index county data
40. Section 1521.13 — Floodplain management activities, quoted and re-checked

Written October 7, 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.