Bolthole Index

Fairfield County, Ohio

Zoning, building permits and septic rules in Walnut Township, Ohio

Walnut Township is a township in Fairfield County, Ohio. Walnut Township adopts its own zoning, so inside its limits Walnut Township’s rules apply, not the county’s. Septic permits inside Walnut Township come from Fairfield County (Fairfield County Health Department - Environmental Division · 740-652-2800). 3 rules below are quoted from official sources and independently re-checked, most recently on November 7, 2026. Rules for unincorporated land are on the Fairfield County page.

Answers from the rulebook for Walnut Township

Walnut Township’s own rules

  • Building permitLimited

    Commercial construction in the unincorporated portions of Walnut Township, Fairfield County, Ohio.

    • Fairfield County Building Department reviews plans and issues permits required by applicable current codes for commercial construction, renovation, improvement, demolition, and repair in unincorporated Fairfield County.
    • The County Building Department excludes one-, two-, and three-family residential structures.
    • The county page excepts Violet Township; Walnut Township is not identified as an exception.
    • Other authorities may have jurisdiction, including township zoning and land use, Fairfield Department of Health for plumbing/private water/sewage, local water and sewer districts, County Engineer, and Regional Planning.
    “The Fairfield County Building Department reviews and approves all plans and issues all permits required by the applicable, current codes for the construction, renovation, improvement, demolition, and repair of commercial buildings within the unincorporated areas of Fairfield County, with the exception of Violet Township.”
  • Local zoningPresent (with conditions)

    Land in the unincorporated territory of Walnut Township, Fairfield County, Ohio.

    • The resolution states that township regulation is for the unincorporated territory of the township.
    • The resolution is subject to the exceptions otherwise provided in ORC Sections 519.01 through 519.99.
    “Except as otherwise provided in ORC Section 519.01 – 519.99, [...] the Board of Township Trustees may in accordance with a comprehensive plan regulate by resolution [...] the uses of land for trade, industry, residence, recreation, or other purposes in the unincorporated territory of the township”

Rules another office applies inside Walnut Township

Walnut Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Who permits septicCounty (with conditions)

    Household sewage treatment systems, small-flow onsite sewage treatment systems, and gray-water recycling systems inside Walnut Township, Fairfield County, Ohio.

    • The Fairfield County Health Department program issues permits for new installations, replacements, and alterations; any installation or alteration work requires a permit.
    • HSTS means septic systems for one-, two-, or three-family dwellings.
    • SFOSTS are systems treating no more than 1,000 gallons of sewage per day.
    • Ohio's comprehensive sewage regulations cited by the department have been in effect since January 1, 2015.

    SFOSTS treatment capacity: <= 1000 gallons of sewage per day (Example given: a church or small business without access to municipal sewer.)

    “Who do I call for a well and septic permit? Fairfield County Health Dept 1587 Granville Pike, Lancaster, Ohio 43130 740- 652-2815”

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.

← All of Fairfield County: county rules, score and offices