Bolthole Index

Hamilton County, Ohio

Zoning, building permits and septic rules in Harrison, Ohio

Harrison is a city in Hamilton County, Ohio. Harrison adopts its own zoning, so inside its limits Harrison’s rules apply, not the county’s. 5 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the Hamilton County page.

Answers from the rulebook for Harrison

Harrison’s own rules

  • Building permitRequired

    Erecting, moving, altering or changing use of any building or structure inside Harrison city (city zoning certificate)

    • This is the city zoning certificate; building-code permits through the Hamilton County Building Department were not verified
    • Zoning certificates expire if work has not begun within six months
    • Development permit required first in FEMA flood hazard areas
    “no building or other structure (including accessory structure) shall be erected, moved, added to, structurally altered, nor shall any building, structure, or land be established or changed in use without a permit issued by the director of zoning or his/her authorized representative.”
  • Certificate of occupancyRequired

    Use or occupancy of any new, converted or altered building or premises inside Harrison city

    • Issued by the director of building and/or zoning
    • Must state the use conforms to the zoning ordinance
    • Temporary certificates are addressed in Sec. 1175.07 (not read)
    “it shall be unlawful to use or occupy, or permit the use or occupancy of any building or premises or both or part thereof, after it has been created, erected, converted, or wholly or partly altered or enlarged in its use or structure, until a certificate of occupancy has been issued by the director of building and/or zoning or his/her authorized representative.”
  • Local zoningPresent

    Land inside Harrison city limits (Hamilton County)

    • Amendments to Ordinance 46-01 are shown in legislative histories at the end of affected sections
    • Code site disclaimer: may not reflect the most current legislation
    “the city of harrison zoning ordinance codified as titles three to seven of this part eleven - planning and zoning code was adopted by ordinance 46-01, passed november 6, 2001.”
  • Building in a floodplainRequired

    Proposed uses in FEMA-identified flood hazard areas inside Harrison city

    • Governed by Chapter 1329 (flood plain management) and the zoning ordinance
    • Development permit precedes the zoning certificate application
    “a development permit shall be required for any proposed use in flood hazard areas as identified by the federal emergency management agency (fema).”
  • Permit processPublished

    Zoning certificate application process inside Harrison city

    • Application must include plans in triplicate and listed information
    • Certificate expires if work not begun within six months
    “each application shall clearly state that the permit shall expire and may be revoked if work has not begun within six (6) months of issuance.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Harrison or Hamilton County directly.

  • Owner-builder exemption — Owner-builder exemption inside Harrison city
  • Building code adopted — Building code inside Harrison city
  • Inspections — Building inspection inside Harrison city
  • Zoning districts — Zoning districts inside Harrison city
  • Minimum dwelling size — Minimum dwelling size in Harrison city districts
20 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Short-term rentals
  • Permit fees

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.

Unanswered questions are usually a sign that Harrison publishes no rule on the point, not that none exists. Hamilton County’s page lists the county offices to call.

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