Bolthole Index

Warren County, Ohio

Building permits, zoning and land rules in Salem Township, Ohio

Salem Township, in Warren County, administers zoning in the township's unincorporated area, while the Village of Morrow is outside that zoning jurisdiction.1 Residential construction is governed by Ohio's residential code, but confirm the current building-permit issuer with the Warren County Building & Zoning Department before submitting plans.23 The Warren County Health District issues onsite-sewage and private-water permits.45

At a glance

Building permit
Required for covered residential work; confirm the current issuing department63
Zoning
Administered by Salem Township in its unincorporated area1
Septic
Installation and operating permits required through Warren County Health District7
Private well
Health-district permit required before installation or alteration5
RV or tiny home
Occupancy rules were not confirmed; ask Salem Township Zoning8
Owner-builder
No local exemption from permits or inspections was confirmed9
Lot size and setbacks
Depend on the Salem Township district; request a parcel-specific determination18

Who to call

Zoning

Salem Township Zoning Department

Zoning questions, zoning appointments, the township zoning code and zoning map

513-678-3633

Building permits

Warren County Building & Zoning Department

Residential plan submittals, building-permit questions and inspections

513-695-1290

406 Justice Drive Lebanon, OH 45036

Online permits →

Septic permits

Warren County Health District - Environmental Health

Onsite sewage-treatment and private-water-system permits and inspections

513-695-1220

416 S. East St. Lebanon, OH 45036

Online permits →

Contact details are copied from each office’s official page and were checked against it on October 9, 2026.

Off-grid gear

Going off-grid in Salem Township means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Salem Township, Ohio?

Covered residential work in Salem Township requires building approval where a certified residential building department has jurisdiction, and the local record identifies the Warren County Building & Zoning Department as requiring permits for new homes, additions, remodels and detached structures.26 Because the reviewed rules do not conclusively identify the department currently exercising residential jurisdiction for Salem Township, call the county building office before submitting plans or paying fees.3

Ohio requires approved construction documents before covered work proceeds, and final tests and inspections must be complete before the residential building official issues a certificate of occupancy.1011 A new residential building may not be occupied before that certificate is issued.12 The county's submittal sheet directs applicants to upload plan files through its citizen portal and keep approved plans on site for inspections.3

Who handles building and zoning approvals in Salem Township?

Start local land-use review with the Salem Township Zoning Department. Township zoning covers unincorporated Salem Township, not the incorporated Village of Morrow, and the township office publishes the current zoning code and map.18 Call the zoning line before settling a house location, changing a use or assuming a parcel can support an RV, tiny home or accessory dwelling.8

Treat building approval as a separate track. The Warren County Building & Zoning Department publishes residential plan-submittal instructions, an online citizen portal and inspection directions.3 We could not confirm the current certified-department arrangement inside Salem Township, so ask that office to confirm jurisdiction and the exact building-permit, electrical, plumbing and inspection applications for the address. The Warren County Health District remains the contact for onsite sewage and private water rather than the township zoning office.45

Does Salem Township have zoning?

Yes. Salem Township zoning applies to the township's unincorporated area, and Salem is not within the Warren County Rural Zoning Office's separate jurisdiction.113 That distinction prevents county zoning standards for other Warren County townships from being mistakenly applied to a Salem parcel.

The reviewed Salem Township code also assigns the township zoning inspector a role in reviewing proposed subdivision plats and parcel splits for compliance with the township zoning code.14 Exact district standards for minimum lot size, dwelling size, setbacks, height and lot coverage were not confirmed, so obtain the parcel's zoning district and written dimensional requirements from Salem Township Zoning before purchase or design.8 For a lot containing a stream, the township code includes voluntary stream-side setback guidance; mapped floodway or floodplain rules may still apply even though those township stream guidelines themselves are voluntary.15

How do septic and well permits work in Salem Township?

The Warren County Health District administers onsite sewage treatment systems inside Salem Township.4 Before installing a new or altered system, the applicant needs a soil evaluation, system design, site review, sewage-system installation permit and operating permit.7 The registered installer must schedule inspection before backfilling, and the health district continues inspections after final approval.16

Resolve sewage feasibility early: only 0.7% of Warren County soils are mapped without severe limitations for a conventional septic drain field.17 That county-level measure does not decide an individual lot, but it makes the required soil evaluation central to the site plan. A new or altered private water system, including a well, also requires a Warren County Health District permit before work, followed by inspection and a water sample for a new system.5 Contact Environmental Health for both tracks.18

Can you live in an RV or tiny home in Salem Township?

We could not confirm a Salem Township rule that allows or prohibits full-time RV living or temporary camping on a private parcel. Ask Salem Township Zoning about the exact address, duration, utility plan and whether the proposed occupancy is allowed before buying land or placing an RV.8 Ohio's campground standards regulate RV placement in licensed campgrounds, but those rules do not answer residential occupancy on private Salem Township land.19

We also could not confirm a Salem Township definition or special occupancy rule for tiny homes. A tiny home used as a residence still must fit the parcel's township zoning and any applicable Ohio residential-code approval.120 A manufactured home generally cannot be occupied until the inspector issues the required inspection seal, subject to the temporary-occupancy provision.21 Do not assume an owner-builder status waives plan approval, inspections or occupancy requirements.9

Building a home in Salem Township: what are the steps?

  1. Ask Salem Township Zoning to confirm that the parcel is in the unincorporated township, identify its zoning district and provide the applicable use, lot and setback rules.18
  1. If the land will be divided, take the proposed plat or parcel split through township zoning review and the applicable Warren County Regional Planning Commission process.14
  1. For onsite sewage, complete the soil evaluation and system design, then obtain site review plus installation and operating permits from the health district.7 Obtain the health-district permit before installing or altering a private water system.5
  1. Confirm building jurisdiction with the Warren County Building & Zoning Department, then submit the required application and plan files through the published portal.3
  1. Keep approved plans on site, arrange building inspections, and schedule the sewage inspection before backfilling.316
  1. Obtain the required residential certificate before occupying the new home.12

What should you check before buying land in Salem Township?

Confirm jurisdiction first: township zoning applies only in unincorporated Salem Township, while incorporated Morrow is outside that scope.1 Obtain the parcel's current district, allowed use and dimensional standards directly from Salem Township Zoning because RV use, tiny homes, minimum dwelling size, lot size and setbacks were not confirmed.8

Make the purchase contingent on sewage feasibility when public sewer is unavailable. Warren County's soil data show that only 0.7% of mapped soils avoid severe limitations for a conventional drain field, and the health district requires a soil evaluation and system design before site review.177 Also confirm private-water approval, legal driveway access, floodplain status and whether public water or sewer connection is required; driveway and utility-connection rules were not confirmed for Salem Township. The township's voluntary stream guidance does not replace applicable EPA or FEMA requirements in a floodway or floodplain.15

Watch-outs

  • Salem Township zoning applies only in the unincorporated township; do not use it for property inside the Village of Morrow.1
  • The current residential building-permit issuer for Salem Township was not conclusively established; confirm jurisdiction with the Warren County Building & Zoning Department before submitting plans.3
  • Do not backfill a new or altered septic system before the registered installer schedules the health-district inspection.16
  • RV living, temporary camping, tiny-home occupancy and local dimensional rules were not confirmed; request a parcel-specific answer from Salem Township Zoning.8

Sources

  1. Salem Township Departments (Salem Township), quoted and re-checked
  2. Ohio Revised Code Chapter 3781 (Salem Township), quoted and re-checked
  3. Warren County Building & Zoning Department (warrencountyohio.gov)
  4. Sewage Treatment Systems – Warren County Health District (Salem Township), quoted and re-checked
  5. Private Water Systems – Warren County Health District (Salem Township), quoted and re-checked
  6. Warren County Building & Zoning Department (2026 county census)
  7. Sewage Treatment Systems – Warren County Health District (Salem Township), quoted and re-checked
  8. Salem Township Zoning Department (salemtownship-warrencounty.com)
  9. Section 3791.04 | Submission of plan - approvals - prohibition - fine (Ohio statewide rule), quoted and re-checked
  10. Section 3791.04 | Submission of plan - approvals - prohibition - fine (Ohio statewide rule), quoted and re-checked
  11. Residential Code of Ohio (Salem Township), quoted and re-checked
  12. Residential Code of Ohio (Salem Township), quoted and re-checked
  13. ZONING INFORMATION FOR THE TOWNSHIPS, CITIES & VILLAGES (Salem Township), quoted and re-checked
  14. Salem Township Zoning Code (Salem Township), quoted and re-checked
  15. Salem Township Zoning Code (Salem Township), quoted and re-checked
  16. Sewage Treatment Systems – Warren County Health District (Salem Township), quoted and re-checked
  17. 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
  18. Warren County Health District - Environmental Health (warrencohealthoh.gov)
  19. Rule 3701-26-04 | Campground requirements (Ohio statewide rule), quoted and re-checked
  20. Residential Code of Ohio for One-, Two-, and Three-family Dwellings (Salem Township), quoted and re-checked
  21. Chapter 4781-7 | Manufactured home inspections (Ohio statewide rule), quoted and re-checked

Written October 9, 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.

Answers from the rulebook for Salem Township

Salem Township’s own rules

  • Local zoningPresent

    Zoning regulation inside the unincorporated areas of Salem Township.

    • The incorporated Village of Morrow is outside this township zoning scope.
    “Salem Township Zoning regulations cover the unincorporated areas of Salem Township.”
    2 more reviewed findings on this topic
    • Present — Zoning inside Salem Township; the county identifies a Salem Township zoning contact and states that Salem is not under Warren County Zoning Office jurisdiction.
      “The following townships are not under the Warren County jurisdiction are as follows: [...] Salem: Mike Yetter [...] [email protected]”
    • Present — Zoning inside Salem Township; the official Warren County zoning-contact document places Salem Township outside Warren County zoning jurisdiction and identifies a Salem Township zoning contact.
      “Salem Township Zoning regulations cover the unincorporated areas of Salem Township.”
  • Subdividing landRegulated (with conditions)

    Proposed subdivision plats and parcel splits in the unincorporated areas of Salem Township, Warren County, Ohio.

    • The Salem Township Zoning Inspector reviews proposed subdivision plats and parcel splits for compliance with the Salem Township Zoning Code.
    • Plats submitted for approval to the Warren County Regional Planning Commission remain subject to the applicable Warren County Regional Planning Commission process.
    • Conservation Design Option developments in the R-1 district and zoning districts outside the urban service area must undergo the Major or Alternative Subdivision process.
    • The zoning code applies only within the unincorporated areas of Salem Township; incorporated areas are outside this claim.
    “Review proposed subdivision plats and parcel splits [...] to determine compliance with the requirements of this Code.”
  • Building in a floodplainLimited

    Development on lots containing a mapped stream or within floodway/floodplain-related stream setback areas in the unincorporated areas of Salem Township, Warren County, Ohio.

    • The stream-side setback guidelines are voluntary and are not required; EPA or FEMA regulations may still apply in areas also within the floodway or floodplain.
    • If the guidelines are followed, they apply to specified subdivisions, building or zoning permit approvals, and non-agricultural buildings, structures, uses, and related soil-disturbing activities on a lot containing a stream, subject to stated exemptions or inapplicability determinations.
    • No building or other structure should be permitted within the stream setback area on a lot created on or after the effective date, except accessory decks and stairs meeting the stated vegetation and floodway conditions, or a use found acceptable by the Warren County SWCD on a lot that is not floodway.
    • Where the 100-year floodway is wider than the minimum stream setback, the setback should extend to the outer edge of the floodway.
    • A building in the non-floodway portion of the 100-year floodplain beyond the stream setback should be constructed so there is no net loss of floodplain storage.
    • Setbacks are measured from the high-water mark: Small Riverine 50 feet; Large Riverine 75 feet; Todd's Fork 100 feet; Little Miami River 300 feet.
    • Wetlands partly within the stream setback require extension to the full wetland extent plus 0, 30, or 50 feet depending on wetland category.

    Small Riverine minimum setback: 50 feet · Large Riverine minimum setback: 75 feet · Todd's Fork minimum setback: 100 feet · Little Miami River minimum setback: 300 feet · non-floodway floodplain storage: no net loss (applies to buildings beyond the stream setback)

    “These guidelines are voluntary and are not required”

Rules another office applies inside Salem Township

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

  • Building code adoptedPartial

    Residential buildings inside Salem Township, Ohio, to the extent a building department certified to enforce the Ohio residential building code has jurisdiction.

    • The Ohio Board of Building Standards adopts separate residential and nonresidential building codes.
    • Residential-code requirements are uniform in areas with a building department certified to enforce the state residential building code.
    • The source does not establish which certified department, if any, currently exercises residential-code enforcement jurisdiction inside Salem Township.
    • Local regulations may differ only for subject matter not addressed by the state residential building code or when adopted under Ohio Revised Code section 3781.01.
    “The rules governing residential buildings are uniform requirements in any area with a building department certified to enforce the state residential building code”
    One more reviewed finding on this topic
    • Adopted (with conditions) — State residential building code applicable to one-, two-, and three-family residential buildings inside Salem Township through a certified building department or authorized sub-building department.
      “Chapters 4101:8-1 to 4101:8-25, 4101:8-29, 4101:8-34, and 4101:8-44 of the Administrative Code are designated as the “Residential Code of Ohio for One-, Two-, and Three-Family Dwellings””
  • InspectionsRequired

    Residential buildings inside Salem Township subject to the Ohio Residential Code.

    • Final tests and inspections must be completed before issuance of a certificate of occupancy; inspection authority is the residential building official.
    “When a residential building or structure is entitled thereto (constructed according to the approved construction documents, final tests and inspections are completed, and no orders of the building official are outstanding, or as permitted in this section), the residential building official shall issue a certificate of occupancy in a timely manner.”
  • Certificate of occupancyRequired

    New residential buildings and covered alterations inside Salem Township.

    • New residential buildings may not be occupied until the certificate is issued.
    • Altered residential buildings may not be occupied until a certificate is issued, except that unaffected spaces may continue if the building official determines they can be occupied safely.
    • Partial, time-limited, temporary-structure, existing-building, and certificate-of-completion provisions also apply where their stated conditions are met.
    “A residential building or structure erected shall not be used or occupied, in whole or in part, until the certificate of occupancy has been issued by the residential building official.”
  • Who permits septicCounty

    Onsite sewage treatment systems inside Salem Township, which is within Warren County.

    • The Warren County Health District enforces sewage-treatment-system rules and conducts inspections within Warren County.
    “Our Environmental Health Staff issue installation permits and conduct inspections of all new, replacement, and altered (repaired) sewage treatment systems (STS) within Warren County in order to assure the installation was completed correctly and to code.”
    One more reviewed finding on this topic
    • County — Onsite sewage treatment systems inside Salem Township.
      “Our Environmental Health Staff issue installation permits and conduct inspections of all new, replacement, and altered (repaired) sewage treatment systems (STS) within Warren County”
  • Septic permitRequired

    New or altered onsite sewage treatment systems serving property inside Salem Township.

    • A soil evaluation and system design are required before site review.
    • The permit must be obtained before installation.
    • A registered installer must schedule inspection before backfilling.
    “A Sewage System Permit to Install and operating permit must be obtained from the WCHD prior to installation.”
    One more reviewed finding on this topic
  • Septic inspectionRequired

    New, replacement, altered, and operating onsite sewage treatment systems inside Salem Township.

    • Inspection is required before backfilling.
    • After final approval, WCHD inspections occur within one year and every three years thereafter.
    “The registered sewage system installer must call to schedule an inspection prior to backfilling the system.”
    One more reviewed finding on this topic
    • Required — New, replacement, or altered onsite sewage treatment systems inside Salem Township.
      “The registered sewage system installer must call to schedule an inspection prior to backfilling the system. Following installation and final approval of the sewage treatment system, the system is placed in the Operation/Maintenance Program whereby the sewage system is inspected by the WCHD staff within one year of installation and every three years thereafter.”
  • Off-grid sanitationAllowed (with conditions)

    Onsite sewage treatment systems serving property inside Salem Township where public sanitary sewer is not accessible.

    • A soil evaluation, system design, site review, installation permit, operating permit, inspection, and operation/maintenance compliance are required.
    “Many residents of Warren County utilize individual home sewage treatment systems, since sanitary sewers are not accessible to a large part of the County. [...] A Sewage System Permit to Install and operating permit must be obtained from the WCHD prior to installation.”
  • Well permitRequired

    New or altered private water systems, including drinking-water wells, inside Salem Township.

    • A permit must be issued before installation or alteration.
    • WCHD inspects new and altered systems.
    • A water sample is required for approval of a new system.
    “An Application/Permit for a Private Water System must be issued by the Warren County Health District (WCHD) prior to installing or altering a private water system.”
    One more reviewed finding on this topic
    • Required — New or altered private water systems, including wells, serving property inside Salem Township.
      “An Application/Permit for a Private Water System must be issued by the Warren County Health District (WCHD) prior to installing or altering a private water system.”
  • Agricultural exemptionAvailable (with conditions)

    Buildings or structures incident to agricultural use of land inside Salem Township.

    • The exemption applies only to buildings or structures incident to agricultural use.
    • The agricultural use must not be a business of retail trade.
    • The statute includes a gross-income test for determining when sales are not retail trade: at least fifty percent of gross income from products produced or raised in a normal crop year on farms owned or operated by the seller.

    gross income from products produced or raised on qualifying farms: >= 50 percent (for the statutory retail-trade exclusion)

    “Buildings or structures that are incident to the use for agricultural purposes of the land on which the buildings or structures are located, provided those buildings or structures are not used in the business of retail trade.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Salem Township or Warren County directly.

  • Building permit — Building permits for construction inside Salem Township.
  • Owner-builder exemption — Owner-builder exemptions for construction inside Salem Township.
  • Zoning districts — Zoning districts inside Salem Township.
  • Minimum dwelling size — Minimum dwelling size in Salem Township zoning districts.
  • Minimum lot size — Minimum lot size in Salem Township zoning districts.
13 more unanswered
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Mandatory utility hookup
  • Driveway access
  • Short-term rentals
  • Permit fees
  • Permit process

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 Salem Township publishes no rule on the point, not that none exists. Warren County’s page lists the county offices to call.

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