Bolthole Index

Fairfield County, Ohio

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

Greenfield Township in Fairfield County, Ohio has its own zoning code with R-1, R-2, R-3 and MH-R districts, enforced by the township zoning inspector1. R-1 lots must be at least 2 acres2. Septic and well permits are not the township's call: the Fairfield County Health Department issues septic permits3. The Village of Carroll is separate from the township's zoning1.

At a glance

Zoning
Township zoning code (R-1, R-2, R-3, MH-R and other districts)14
R-1 minimum lot
2 acres, or larger if the county health department requires2
Minimum home size (R-1)
1,100 sq ft one-story; 1,400 sq ft with 1.5 or 2 stories5
R-1 front setback
50 ft from county or township roads, 75 ft from state or federal highways6
Septic permits
Fairfield County Health Department3
Manufactured homes
Allowed in R-1 if code-compliant, on a permanent foundation and meeting minimum floor area7
Building height (R-1)
35 ft maximum8

Who to call

Zoning

Greenfield Township Zoning Department

Township zoning permits, zoning code, zoning map and fee schedule

740-400-9441

zoning@greenfieldtwp.org

4663 Carroll-Cemetery Rd. NW Carroll, Ohio 43112

Septic permits

Fairfield County Health Department - Environmental Division

Household and small-flow onsite sewage treatment system permits, site and design review, and installer registration

740-652-2800

1550 Sheridan Drive, Suite 100, Lancaster, Ohio 43130

Contact details are copied from each office’s official page and were checked against it on October 14, 2026.

Off-grid gear

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

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Does Greenfield Township, Ohio have zoning?

Yes. Greenfield Township adopts and enforces its own zoning code for unincorporated land, with R-1 rural/agricultural, R-2 suburban residential, R-3 and MH-R districts14. Fairfield County itself has no countywide zoning; each township, city and village adopts its own9. The Village of Carroll is separate from the township's code1.

In the R-1 district, a single-family home needs at least 1,100 square feet on one story, or 1,400 square feet of living area with 1.5 or 2 stories5. Buildings top out at 35 feet8. R-1 front setbacks are 50 feet from a county or township road and 75 feet from a state or federal highway6. Always confirm your parcel's district on the township zoning map with the zoning inspector10.

How big must a lot be in Greenfield Township's R-1 district?

Lots in R-1 must be at least 2 acres, or a larger size if the Fairfield County Health Department requires it for on-site water and sanitary systems, whichever is larger2. Minimum frontage is 150 feet2. Other districts have different standards in the code book, so name the district before you plan a split or a build4. Dividing a parcel also runs through the Fairfield County Regional Planning Commission, which reviews subdivisions and lot splits11.

Do you need a building permit in Greenfield Township, and who issues it?

The township zoning inspector is the first stop: the Greenfield Township zoning department says it is accepting building permit requests by email or phone while it moves to an online application10. That is the township's zoning side, and it applies to land in the township rather than the Village of Carroll1.

The Fairfield County Building Department does not cover ordinary homes: it handles commercial buildings in unincorporated areas and excludes residential one-, two- and three-family structures12. Who reviews and inspects a new house in Greenfield Township under the Ohio residential code is something we could not confirm; ask the zoning inspector and the Fairfield County Building Department. Ohio law requires plan approval from the certified building department that has jurisdiction, and where none is certified for residential buildings the owner need not make that submission13.

How do septic permits work in Greenfield Township?

The Fairfield County Health Department's Environmental Division oversees siting, design and installation of household sewage treatment systems14. Any installation or alteration needs a permit15. Every new-system application needs a soil testing report for every lot, regardless of size or creation date15.

The township ties the two together: R-1 lot size can exceed 2 acres if the health department requires more room for on-site water and sewage2. Soils matter here, since only about 2% of soils in Fairfield County rate as not limited for a conventional drain field16, so expect a site evaluation and possibly an engineered system. New private wells also need a permit through the county health department17.

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

We could not confirm an RV or tiny-home rule in the township code; its code defines trailers and recreational vehicles but we found no occupancy rule. Ask the zoning inspector before you move one onto a parcel10.

Manufactured homes are different: a permanently sited manufactured home is allowed in R-1 if it meets residential building code standards, sits on a permanent foundation and meets the minimum floor area7. Ohio's campground rules for licensed campgrounds do not answer whether you can live in an RV on your own land18.

Building a home in Greenfield Township: the steps, in order

  1. Confirm your parcel's zoning district and standards with the township zoning inspector10.
  2. Get a soil evaluation and a septic permit from the Fairfield County Health Department, which can set a larger lot size than the zoning minimum215.
  3. Apply for a private well permit if you will not use public water17.
  4. Ask the zoning inspector and county building department who reviews residential plans for your address, then submit them13.
  5. Check a driveway onto a county road: the Fairfield County Engineer's Office requires a separate permit for each temporary or permanent drive19.

What stays with Fairfield County, and what to check before you buy

Septic and well permits stay with the Fairfield County Health Department317. Subdivision and lot splits go through the county Regional Planning Commission11. Floodplain development permits are required in a FEMA special flood hazard area in unincorporated Fairfield County, with the Regional Planning Commission administering them20. For land outside Greenfield Township, see the Fairfield County page.

Before buying, confirm the zoning district, the health department's septic requirements for the lot, and floodplain status. Fairfield County's effective property tax rate is 1.1%21.

Watch-outs

  • The township zoning office says an online application process is coming, so confirm current forms and fees with the zoning inspector10.
  • We could not confirm who reviews and inspects residential building plans in Greenfield Township; the Fairfield County Building Department excludes one-, two- and three-family homes12.
  • Township zoning pages about agricultural buildings point to a separate agricultural exemption request through the zoning inspector, and the state exemption needs a zoning certificate22.

Sources

  1. Greenfield Township Zoning Code Book (Greenfield Township), quoted and re-checked
  2. Greenfield Township Zoning Code Book (Greenfield Township), quoted and re-checked
  3. Sewage Treatment Systems, quoted and re-checked
  4. Greenfield Township Zoning Code Book (Greenfield Township), quoted and re-checked
  5. Greenfield Township Zoning Code Book (Greenfield Township), quoted and re-checked
  6. Greenfield Township Zoning Code Book (Greenfield Township), quoted and re-checked
  7. Greenfield Township Zoning Code Book (Greenfield Township), quoted and re-checked
  8. Greenfield Township Zoning Code Book (Greenfield Township), quoted and re-checked
  9. Township Zoning, quoted and re-checked
  10. Greenfield Township Zoning Department (greenfieldtwp.org)
  11. Subdivision - Lot Splits, quoted and re-checked
  12. Fairfield County Building Department (2026 county census)
  13. Section 3791.04 | Submission of plan - approvals - prohibition - fine (Ohio statewide rule), quoted and re-checked
  14. Sewage Treatment Systems, quoted and re-checked
  15. Fairfield County Health Department - Environmental Division (fairfieldhealth.org)
  16. 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
  17. Private Water Systems, quoted and re-checked
  18. Rule 3701-26-04 | Campground requirements (Ohio statewide rule), quoted and re-checked
  19. Fairfield County Building Department, quoted and re-checked
  20. Floodplains, quoted and re-checked
  21. Effective property tax rate: Bolthole Index county data
  22. Section 3781.061 | Exemption for building or structure used in agriculture, quoted and re-checked

Written October 14, 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 Greenfield Township

Greenfield Township’s own rules

  • Local zoningPresent (with conditions)

    Unincorporated land in Greenfield township (the Village of Carroll is separate)

    • Township zoning code with R-1, R-2, R-3 and MH-R districts
    “for all parcels in the r-1, the lot area shall be not less than two (2.0) acres, or such size as determined by the fairfield county health department for the provision of on-site water and sanitary systems, whichever is larger.”
  • Zoning districtsPublished

    Greenfield township zoning code district standards

    • R-1, R-2, R-3, MH-R and others in the code book
    “section 315 - (r-2) suburban residential district”
  • Minimum dwelling sizeSpecified

    R-1 district single-family dwellings in Greenfield township (R-2 uses the same figures)

    one-story minimum: >= 1100 sq ft · 1.5 or 2-story minimum living area: >= 1400 sq ft

    “minimum building area one thousand one hundred (1,100) square feet shall be required for single-family dwellings having one (1) story; one thousand four hundred (1,400) square feet of total living area shall be required for single-family dwellings with one-and-one-half (1-1/2) or two (2) stories.”
  • Minimum lot sizeSpecified

    R-1 (rural/agricultural) district in Greenfield township

    • Or larger size set by Fairfield County health department for on-site water and sanitary systems
    • Minimum frontage 150 feet

    minimum lot area: >= 2 acres (larger if health department requires)

    “for all parcels in the r-1, the lot area shall be not less than two (2.0) acres, or such size as determined by the fairfield county health department for the provision of on-site water and sanitary systems, whichever is larger.”
  • SetbacksSpecified

    R-1 district in Greenfield township

    • Side yard 20 ft principal, 15 ft accessory; rear yard 50 ft principal, 15 ft accessory

    front yard: >= 50 feet (75 ft from federal or state highway)

    “all front yard setbacks shall be measured as defined in section 105 and shall be a minimum of fifty (50) feet from the right-of-way of any county or township road, or seventy-five (75) feet from the right-of-way of any federal or state highway.”
  • Building heightSpecified

    R-1 district in Greenfield township (R-2 also 35 ft)

    maximum building height: <= 35 feet

    “g. maximum building height thirty-five (35) feet.”
  • Manufactured homesLimited

    Permanently sited manufactured homes in R-1 district in Greenfield township

    • Must meet residential building code standards, permanent foundation and minimum floor area
    “the use of a permanently sited manufactured home, as defined by orc 3781.06, is permitted provided that the home meets all applicable residential building code standards, is installed on a permanent foundation, and meets all minimum floor area requirements.”

Still unanswered

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

  • Building permit — Building permits in Greenfield township
  • Owner-builder exemption — Owner-builder exemption in Greenfield township
  • Building code adopted — Building code in Greenfield township
  • Inspections — Building inspections in Greenfield township
  • Certificate of occupancy — Certificates of occupancy in Greenfield township
18 more unanswered
  • Lot coverage
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • 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 Greenfield Township publishes no rule on the point, not that none exists. Fairfield County’s page lists the county offices to call.

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