Bolthole Index

Greene County, Iowa

Building permits, zoning and land rules in Greene County, Iowa

53Index Score / 100
#52 of 99 in Iowa

Unincorporated Greene County, Iowa has county zoning, but we could not confirm a general county building-permit requirement for an ordinary private home; ask Greene County Planning and Zoning what approval applies to the parcel and project12. Greene County Environmental Health administers septic-system permits, and the published permit fee is $15034.

At a glance

Building permit
General county requirement unconfirmed; ask Planning and Zoning before construction52
Zoning
Yes; county zoning applies in unincorporated Greene County16
Septic permit
Administered by Greene County Environmental Health; published fee is $15034
Owner-builder
Own-property work is exempt from state contractor registration, not from other approvals78
RV living
Camping-ground use is limited to 4 weeks; long-term private RV occupancy remains unconfirmed92
Tiny home / accessory building
An accessory building cannot be used as a separate dwelling; other tiny-home rules unconfirmed102
Setbacks
Specified by zoning district, lot type, use and special regulations11
Private well permit
Environmental Health administers well-construction permits; published fee is $125412

Who to call

Building permits

Greene County Planning and Zoning

Zoning and floodplain-map questions for Greene County; contact this office to confirm project-specific land-use approvals

515-386-5669

zoning@greenecounty.iowa.gov

114 N. Chestnut Street, Jefferson, Ia. 50129

Septic permits

Greene County Environmental Health

Well-construction permits, septic-system permits and related environmental-health programs

515-386-5669

sanitarian@greenecounty.iowa.gov

114 N. Chestnut Street, Jefferson, Ia. 50129

Roads & driveways

Greene County Engineer’s Office

County-road, ditch and access questions, including confirming whether a proposed entrance needs county approval

515-386-5650

engineer@greenecounty.iowa.gov

114 N. Chestnut Street, Jefferson, IA 50129

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 Greene County means bringing your own water and power. The kit we’d start with:

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Do you need a building permit in Greene County, Iowa?

A general Greene County building-permit requirement for an ordinary private home could not be confirmed from the county material, so contact Greene County Planning and Zoning before starting work2. Iowa does not impose one universal building-permit requirement on every private building statewide; local governments administer permits and enforcement under applicable local law, while the state code reaches specified categories of construction13. State plan review and inspection apply to specified state-owned, state-board-of-regents and state-funded buildings, not automatically to every privately owned rural home14. A certificate of occupancy is likewise required only when an applicable ordinance calls for one, and no general Greene County requirement was confirmed152. The practical first step is to give Planning and Zoning the parcel location, proposed use and structure type and ask which zoning certificate, permit, inspection or closeout document applies2.

Who handles Greene County building and land-use questions?

Greene County does not identify a separate building department on the official county material reviewed, so start with Greene County Planning and Zoning for unincorporated-land questions at 515-386-5669 or zoning@greenecounty.iowa.gov2. The office is in the Auditor’s Office on the second floor at 114 N. Chestnut Street, Jefferson, IA 501292. Greene County Environmental Health uses the same courthouse address and phone for well and septic permits; email sanitarian@greenecounty.iowa.gov12. For questions about a proposed entrance, roadside ditch or county road, call the Greene County Engineer’s Office at 515-386-565016. The county page says Planning and Zoning keeps floodplain maps for reference, so include a floodplain-map check when discussing a prospective building site with that office2.

Does Greene County have zoning?

Yes. Greene County zoning applies to unincorporated Greene County, and the Board of Supervisors updated the zoning ordinance in 20226. Iowa gives counties optional zoning authority outside incorporated city limits and allows standards to differ by district17. Greene County setbacks vary by zoning district, lot type, use and special regulations, so a setback from one parcel should not be assumed to apply to another11. Iowa law generally makes county zoning inapplicable to qualifying agricultural land, farmhouses, farm barns, farm outbuildings and other structures primarily adapted to agricultural purposes while so used, although floodplain regulation can still apply17. The ordinance sets six districts, from Agriculture and Residence to Conservation and Mineral Extraction, so confirm which one covers the parcel18. No building may exceed four stories or 50 feet unless it is set back one foot from every required yard line for each added foot of height19. A lot with a residence must abut a street for at least 40 feet or have an exclusive private access easement at least 20 feet wide, with one single-family dwelling per frontage or easement20. If land will be divided, Greene County regulates subdivisions and resubdivisions in unincorporated areas, with a subdivision defined to include division into 3 or more lots or other divisions for ownership transfer or building development21.

How do septic and well permits work in Greene County?

Greene County Environmental Health administers private sewage disposal permits and related environmental-health programs, with the Greene County Board of Health responsible for interpreting, monitoring and enforcing the county private-well and private-sewage ordinance3. A site evaluation comes before the septic construction permit is issued, and the county inspects a new system before it is backfilled2223. The county publishes a $150 septic-system permit fee and a $125 well-construction permit fee4. Iowa requires county boards of health to regulate private water supplies and private sewage facilities within their jurisdiction, while the Iowa Department of Natural Resources retains concurrent authority and regulates direct discharges to state waters24. Only about 21.1% of Greene County soils are rated without severe limitations for a conventional septic drain field, so obtain site-specific feasibility work before fixing the house location or assuming a conventional system will fit25. Iowa generally requires an inspection before a qualifying transfer of a building served by a private sewage system; statutory exceptions apply, and an inspection is valid for 2 years26.

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

Greene County defines a camping ground as land used exclusively by tents, trailers, mobile homes or other mobile living facilities for no more than 4 weeks, and lists camping grounds as a permitted use in the Agriculture District subject to other district and permit rules9. That camping-ground provision does not confirm that long-term or permanent RV occupancy is allowed on an individual private parcel, so ask Planning and Zoning about the parcel, zoning district, duration and utility plan before placing or occupying an RV2. Unincorporated Greene County does not allow an accessory building to be used as a separate dwelling, with an exception for domestic servants employed entirely on the premises, so a tiny home cannot simply replace a shed or barn as housing10. A specific Greene County tiny-home occupancy rule and a general minimum dwelling size also could not be confirmed, so take the proposed dimensions, foundation and sanitation plan to Planning and Zoning2. A manufactured home has a clearer statewide rule: Greene County cannot reject a proposed residence solely because it is manufactured, but the home may be held to the same permanent-foundation, setback and minimum-square-footage standards as a site-built single-family home on the same lot27.

Building a home in Greene County: the steps, in order

  1. Call Greene County Planning and Zoning at 515-386-5669 with the parcel location, proposed use and structure type; ask which zoning approval, building permit, inspection and occupancy document apply2.
  1. Confirm the zoning district and parcel-specific setbacks before commissioning final plans611.
  1. Contact Greene County Environmental Health for septic feasibility and the $150 septic permit, and discuss a private well and its $125 permit if public water is unavailable34.
  1. Ask Planning and Zoning to review the county floodplain maps and explain any floodplain approval needed for the site2.
  1. Contact the County Engineer’s Office before creating or changing access from a county road, because the published county material does not confirm the permit rule for a new private entrance16.
  1. Before occupancy, confirm any required inspections or completion documents with Planning and Zoning because no general county requirement was confirmed2.

What should you check before buying land in Greene County?

Confirm the parcel’s zoning district, allowed use and setbacks with Greene County Planning and Zoning before closing6112. Order septic feasibility work early because only about 21.1% of county soils are rated without severe limitations for a conventional drain field, even though about 97.6% of the county has a slope of 15% or less2528. Ask Planning and Zoning to review its floodplain maps, and verify legal and physical road access with the County Engineer’s Office216. If a split is contemplated, determine whether Greene County subdivision review applies before relying on a proposed lot layout21. For carrying costs, Greene County’s effective property-tax rate is about 1.2%, the median property-tax bill is about $1,682 per year, and a typical home-insurance premium is about $1,678 per year293031.

Watch-outs

  • Greene County has zoning, but a general building-permit, building-inspection and certificate-of-occupancy requirement for ordinary private construction could not be confirmed; ask Planning and Zoning before work begins12.
  • Greene County's camping-ground definition caps that use at 4 weeks, but the ordinance does not directly answer long-term RV occupancy on an individual private parcel; ask Planning and Zoning before relying on an RV for housing92.
  • A state owner-builder exemption concerns contractor registration only and does not waive zoning, septic, building-code or inspection requirements that otherwise apply78.
  • Greene County’s published zoning-fee schedule was not located, while its septic and well permit fees are published; ask Planning and Zoning for the current project-specific zoning cost42.
  • Greene County's zoning ordinance bars using an accessory building as a separate dwelling, so a guest cabin, converted outbuilding or second home on one residential lot needs Planning and Zoning's answer first102.

Sources

  1. Planning and Zoning (2026 county census)
  2. Greene County Planning and Zoning (greenecounty.iowa.gov)
  3. Environmental Health - Greene County IA, quoted and re-checked
  4. Environmental Health - Greene County IA, quoted and re-checked
  5. Iowa Code 2026, Chapter 103A — State Building Code (2026 county census)
  6. Planning and Zoning - Greene County IA, quoted and re-checked
  7. Iowa Code 2026, Chapter 91C — Construction Contractors (2026 county census)
  8. Iowa Code 2026, Chapter 91C — Construction Contractors (Iowa statewide rule), quoted and re-checked
  9. GREENE COUNTY ZONING ORDINANCE, quoted and re-checked
  10. GREENE COUNTY ZONING ORDINANCE, quoted and re-checked
  11. GREENE COUNTY ZONING ORDINANCE, quoted and re-checked
  12. Greene County Environmental Health (greenecounty.iowa.gov)
  13. Iowa Code 2026, Chapter 103A — State Building Code (Iowa statewide rule), quoted and re-checked
  14. Iowa Code 2026, Chapter 103A — State Building Code (Iowa statewide rule), quoted and re-checked
  15. Iowa Code 2026, Chapter 103A — State Building Code (Iowa statewide rule), quoted and re-checked
  16. Greene County Engineer’s Office (greenecounty.iowa.gov)
  17. Iowa Code 2026, Chapter 335 — County Zoning (Iowa statewide rule), quoted and re-checked
  18. Greene County Zoning Ordinance, quoted and re-checked
  19. GREENE COUNTY ZONING ORDINANCE, quoted and re-checked
  20. GREENE COUNTY ZONING ORDINANCE, quoted and re-checked
  21. SUBDIVISION ORDINANCE, quoted and re-checked
  22. Greene County Code of Ordinances, quoted and re-checked
  23. Greene County Code of Ordinances, quoted and re-checked
  24. Iowa Code §455B.172, Jurisdiction of department and local boards (Iowa statewide rule), quoted and re-checked
  25. 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
  26. Iowa Code §455B.172, Jurisdiction of department and local boards (Iowa statewide rule), quoted and re-checked
  27. Iowa Code §335.30, Manufactured and modular homes (Iowa statewide rule), quoted and re-checked
  28. Share of land at 15% slope or less: Bolthole Index county data
  29. Effective property tax rate: Bolthole Index county data
  30. Median property tax bill: Bolthole Index county data
  31. Typical home insurance premium: Bolthole Index county data

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.

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Compared with neighboring counties

Unlike 5 of its 6 neighbors, Greene County requires a building permit only in limited cases.

RuleGreene CountyGuthrie CountyCarroll CountyBoone CountyWebster CountyCalhoun CountyDallas County
Building permitLimitedRequiredRequiredLimitedRequiredRequiredRequired
County zoningYesYesYesYesYesYesYes
Septic permitsCounty Env. HealthCounty Env. HealthCarroll & Crawford County Env. Health Dept.County Health & SanitationCounty Health Dept.County Board of HealthCounty Env. Health Dept.

County locator

Greene County in Iowa

53
County map
Greene County highlighted among the Iowa counties · colored by Index score

How Greene County scores

Seclusion65100% ev.
Self-Sufficiency29100% ev.
Admin Boringness62100% ev.
Durability43100% ev.
Property Autonomy51100% ev.
Carry Cost55100% ev.

Evidence strength: 100%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$179kTypical home
1.2%Property tax
$10,751Land / acre
35.1"Annual rain
16.3% of yrsSevere drought
6.5 / yr (+5.9)Mid-century 100°F days
17 daysMid-century dry spell
2.01" (+10.4%)Mid-century 1-day rain
1.71×Wildfire change factor
100%Forward climate coverage
$1,678Home insurance / yr
4.1% / yrInsurance growth
2.69%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
11,165People within 30 min
1,266,071People within 2 hr
15,395Radius comparison (15 mi)
15.1People / sq mi
0.6%Federal land
97.6%Land at 15% slope or less
21.1%Soils rated "not limited" for septic (strict USDA rating)
76,100 acWorkable land screen
3.5%Wooded land
53.6 tonsBiomass / forest ac
48.4°FAvg temp

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Cities and towns in Greene County

Inside a city or town, that city usually issues building permits and sets zoning; the county’s rules above cover unincorporated land. Septic, wells and floodplain rules usually stay with the county or state everywhere.

Churdan · Dana · Grand Junction · Jefferson · Paton · Rippey · Scranton

Answers from the rulebook for Greene County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Greene County rules

  • County-wide zoningPresent

    County zoning in Greene County.

    • The county zoning ordinance was updated on October 17, 2022.
    “the unincorporated areas of Greene County, Iowa are hereby divided into the following districts:”
    One more reviewed finding on this topic
    • Present — County zoning in unincorporated Greene County.
      “On October 17, 2022, the Greene County Board of supervisors updated the zoning ordinance.”
  • Local zoningPresent (with conditions)

    Zoning regulation in the unincorporated areas of Greene County, Iowa.

    • The ordinance divides unincorporated Greene County into A Agriculture, B Commercial, C Industrial, D Residence, E Conservation, and F Mineral Extraction districts.
    • The cited county ordinance does not establish zoning rules for incorporated municipalities.
    • The zoning ordinance exempts farmland, farm houses, farm barns, farm out-buildings, and other structures used primarily for farming purposes while they continue to be used primarily for farming purposes.
    “In order to classify, regulate, and restrict the location of trades, industries, and the location of buildings designed for specified uses; to regulate and limit the height and use of buildings hereafter erected or structurally altered; to regulate and limit the intensity of use and the lot areas; and to regulate and determine the areas of yards, courts, and other open spaces surrounding such buildings, the unincorporated areas of Greene County, Iowa are hereby divided into the following districts:”
  • Zoning districtsPublished

    County zoning districts and district regulations.

    • The ordinance includes district boundaries, general regulations, and district-specific use, height, yard, and lot-area controls.
    ““A” Agriculture District “B” Commercial District “C” Industrial District “D” Residence District “E” Conservation District “F” Mineral Extraction District”
  • Minimum lot sizeSpecified

    Multiple dwellings containing three or more dwelling units.

    • With public sewer and water, minimum lot area is 4,000 square feet per dwelling unit.
    • With public water and septic tanks, minimum lot area is 7,000 square feet per dwelling unit.
    • With private well and septic tanks, minimum lot area is 10,000 square feet per dwelling unit.
    • These provisions apply in any district except C District.

    minimum lot area per dwelling unit with public sewer and water: 4000 square feet (Multiple dwellings containing three or more dwelling units) · minimum lot area per dwelling unit with public water and septic tanks: 7000 square feet (Multiple dwellings containing three or more dwelling units) · minimum lot area per dwelling unit with private well and septic tanks: 10000 square feet (Multiple dwellings containing three or more dwelling units)

    “With public sewer and water – four thousand (4,000) square feet.”
  • SetbacksSpecified

    Yard and setback requirements for structures in unincorporated Greene County zoning districts.

    • Setbacks vary by zoning district, lot type, use, and special regulations.
    • The ordinance also includes special setback rules for wind turbines, utilities, towers, and other uses.
    “There shall be a front yard having a depth of not less than forty (40) feet.”
  • Lot coverageSpecified

    Accessory buildings in required rear yards.

    • The rule concerns accessory buildings in required rear yards, not a general principal-building lot-coverage ratio.

    maximum occupancy of required rear yard by accessory buildings: <= 30 percent

    “Accessory buildings may be built in a required rear yard but such accessory buildings shall not occupy more than thirty (30) percent”
  • Building heightSpecified

    Buildings governed by the district height regulations in §7.2.4 of the Greene County Zoning Ordinance.

    • Buildings may exceed four stories or 50 feet only when set back one foot from all required yard lines for each one foot above 50 feet.
    • Section 13 contains additional exceptions.

    maximum height: <= 50 feet (Additional height requires one-foot additional setback per one foot above 50 feet.) · maximum stories: <= 4 stories (Except as otherwise provided in section 13.)

    “No building shall exceed four (4) stories nor fifty (50) feet in height, except as otherwise provided in section 13 hereof, and except that buildings may exceed four (4) stories or fifty (50) feet in height provided the building is set back one foot from all required yard lines for each one (1) foot of additional height above fifty (50) feet.”
  • Camping on your landLimited

    Camping grounds in unincorporated Greene County.

    • The ordinance defines a camping ground as land used exclusively by tents, trailers, mobile homes, or other mobile living facilities for no more than four weeks.
    • Camping grounds are listed among permitted uses in the county zoning ordinance's Agriculture District; other district and permit rules may apply.

    maximum duration: <= 4 weeks

    ““Camping Ground” means any land or portion thereof which is designed for and used exclusively, not exceeding four (4) weeks duration, by occupants of tents, trailers, mobile homes, or other mobile living facilities.”
  • Accessory dwellingsProhibited

    Use of an accessory building as a separate dwelling in unincorporated Greene County.

    • The ordinance provides an exception for domestic servants employed entirely on the premises.
    “no accessory building shall be used for dwelling purposes”
  • Who permits septicMixed (with conditions)

    Private sewage disposal systems in Greene County.

    • Greene County adopts Iowa Administrative Code Chapters 69 and related well provisions by reference.
    • The Greene County Board of Health interprets, monitors, and enforces the ordinance.
    “Greene County Board of Health is the designated agency”
    One more reviewed finding on this topic
    • County — Private sewage disposal permits and related environmental-health administration in Greene County.
      “Programs administered by this office include: [...] Septic system permits”
  • Septic permitRequired

    Construction of private sewage disposal systems in Greene County.

    • A site evaluation must occur before issuance of a construction permit.
    • The county ordinance adopts Iowa Administrative Code Chapter 567 IAC 69.
    “conduct a site evaluation prior to the issuance”
  • Septic inspectionRequired

    Newly constructed private sewage disposal systems in Greene County.

    • Inspection must occur before the system is backfilled.
    • A final as-built drawing must be kept with the construction permit.
    • The county Board of Health is the designated enforcing agency.
    “inspection of all newly constructed PSDSs before the system is backfilled”
  • Well permitRequired

    Private water-well construction in Greene County.

    • The Board of Supervisors receives delegated authority through a 28E agreement with the Iowa DNR.
    • The Greene County Board of Health is designated as the permitting authority.
    “authority for private water well construction permits”
  • Subdividing landRegulated (with conditions)

    Subdivision, resubdivision, platting, and dedications in unincorporated Greene County.

    • The ordinance applies to unincorporated areas except land within one mile of a city that has enacted subdivision regulations.
    • A subdivision is defined as division into three or more lots, plots, sites, or other divisions for transfer of ownership or building development.
    • Preliminary and final plat procedures, review, public-hearing discretion, and 30-day Board action rules apply.

    minimum number of divisions: >= 3 lots or other divisions (resubdivisions are also included)

    “providing rules and regulations for the approval of plats, subdivisions, resubdivisions, and dedications in the unincorporated areas of Greene County”
    One more reviewed finding on this topic
    • Regulated (with conditions) — Subdivision of land into three or more lots in unincorporated Greene County.
      “the division of a lot, tract, or parcel of land into three (3) or more lots”
  • Driveway accessRequired

    Residential lots under the Greene County Zoning Ordinance.

    • A residential lot must abut at least 40 feet on a street or have an exclusive unobstructed private access easement or right-of-way at least 20 feet wide.
    • The provision states there shall be only one single-family dwelling for such frontage or easement.

    minimum street frontage: >= 40 feet (An exclusive unobstructed private easement or right-of-way at least 20 feet wide may substitute.) · minimum private access easement width: >= 20 feet

    “Lots containing any building used in whole or in part for residence purposes shall abut for at least forty (40) feet on at least one street, or have an exclusive unobstructed private easement of access or right-of-way at least twenty (20) feet wide to a street; and there shall be only one (1) single-family dwelling for such frontage or easement.”
  • Permit feesPublished (with conditions)

    Greene County Environmental Health well-construction and septic-system permits.

    • Well construction permit fee is $125.
    • Septic-system permit fee is $150.

    well construction permit fee: 125 USD · septic system permit fee: 150 USD

    “Well construction permits Permit fee is $125 Septic system permits Permit fee is $150”
    One more reviewed finding on this topic
    • Variable (with conditions) — County zoning, septic, and well permit fees.
      “Well construction permits Permit fee is $125 Septic system permits Permit fee is $150”
  • Permit processPartial

    Environmental Health well-construction and septic-system permit administration.

    • The county identifies Environmental Health as the administering office and publishes fees, but the opened page does not provide a complete application, review, or inspection workflow.
    “Programs administered by this office include: Well construction permits [...] Septic system permits”

Iowa rules that apply here

  • Building permitLimited

    Construction subject to Iowa's State Building Code, including state-owned buildings, buildings in governmental subdivisions that adopt the code, certain cities over 15,000 population without a substantially conforming local code, factory-built structures, and construction covered by statewide energy-conservation provisions.

    • Iowa Code section 103A.10 makes the state building code applicable to all state-owned buildings and structures.
    • The code applies in a governmental subdivision where the governing body has enacted an ordinance accepting the code.
    • The code applies in each city with a population over 15,000 that has not adopted a substantially conforming local building code.
    • Factory-built-structure manufacture and installation provisions apply throughout Iowa.
    • Permit issuance and enforcement are administered under local law or ordinance; the state source does not establish one universal permit requirement for every building statewide.
    • A governmental subdivision may prohibit commencement of construction until a local building department issues a permit after compliance is shown.
    • The application must be signed by the owner or authorized agent and include the owner's address, a statement that the application seeks permission to construct under the code, and a statement that construction will comply with applicable energy-conservation requirements.
    “The examination and approval or disapproval of plans and specifications, the issuance and revocation of building permits, licenses, certificates, and similar documents, the inspection of buildings or structures, and the administration and enforcement of building regulations shall be the responsibility of the governmental subdivisions of the state and shall be administered and enforced in the manner prescribed by local law or ordinance. [...] Prohibit the commencement of construction until a permit has been issued by the local building department after a showing of compliance with the requirements of the applicable provisions of the state building code.”
  • Owner-builder exemptionAvailable (with conditions)

    A person performing work or having work performed on the person's own property, for purposes of Iowa Code chapter 91C contractor registration.

    • The exemption is from being treated as a contractor for purposes of chapter 91C; it is not stated to waive building permits, building-code compliance, inspections, or certificates of occupancy.
    • The separate annual-earnings threshold is less than $2,000, but the own-property exemption is stated independently.
    • A contractor doing business in Iowa must register under chapter 91C unless an applicable statutory exclusion applies.
    “However, a person who earns less than two thousand dollars annually or who performs work or has work performed on the person’s own property is not a contractor for purposes of this chapter.”
  • Building code adoptedPartial

    The Iowa State Building Code, including the 2024 International Building Code adopted by reference with Iowa amendments, applies statewide to state-owned buildings and structures, qualifying state-funded construction, certain cities over 15,000 that lack a substantially equivalent local building code, and governmental subdivisions that accept the code by ordinance. Factory-built-structure provisions apply throughout Iowa.

    • In a governmental subdivision, the code generally applies only after the governing body enacts an ordinance accepting applicability and files a certified copy with the commissioner.
    • The local ordinance fixes the effective date, which must be no more than six months after adoption.
    • A governmental subdivision may withdraw after one year by ordinance, following the required public hearing and written notice; the withdrawal date must be at least 180 days after ordinance adoption, and previously issued permits are unaffected.
    • The state building code applies to state-owned buildings and structures and to newly constructed buildings and structures paid for in whole or in part with state-appropriated money but not wholly state-owned.
    • Cities with populations over 15,000 that lack a local building code substantially in accord with nationally recognized standards must enforce the state building code.
    • Factory-built-structure provisions apply throughout the state; an approved factory-built structure is deemed compliant with building regulations applicable to its manufacture and installation and is exempt from other state or local building regulations, subject to the statutory exceptions concerning professional engineering and architecture and manufactured homes.
    • The current administrative rule adopts the 2024 International Building Code by reference with amendments; detached one- and two-family dwellings, certain townhouses not more than three stories, and their accessory structures instead comply with the amended International Residential Code.

    adopted model building code: 2024 International Building Code (Adopted by reference with Iowa amendments.) · current administrative-rule effective date: 2025-09-10 (Iowa Administrative Code Chapter 481.301 source identifies ARC 9474C as effective September 10, 2025.) · local ordinance effective-date limit: <= 6 months after adoption · local withdrawal waiting period: >= 1 year after code became applicable (A governmental subdivision may withdraw only after this period has elapsed.) · withdrawal effective-date minimum: >= 180 days after ordinance adoption (Previously issued permits remain unaffected.)

    “The state building code shall be applicable: [...] In each governmental subdivision where the governing body has enacted an ordinance accepting the application of the code.”
  • InspectionsLimited

    Buildings and structures subject to Iowa Code section 103A.10A, including newly constructed state-owned buildings, state-board-of-regents buildings, and certain state-funded buildings.

    • Newly constructed state-owned buildings and structures subject to the state building code are subject to plan review and inspection, excluding renovations and repairs except as provided by statute.
    • Newly constructed buildings owned by the state board of regents are subject to plan review and inspection, excluding renovations and repairs except as provided by statute.
    • State-funded buildings not wholly owned by the state are subject to state plan review and inspection when the governmental subdivision has not adopted the listed codes or does not perform inspections; otherwise they must comply with the local codes and inspections.
    • For ordinary privately owned construction, inspection administration is governed by the applicable local law or ordinance.
    “All newly constructed buildings or structures subject to the state building code, including any addition, but excluding any renovation or repair of such a building or structure, owned by the state or an agency of the state, except as provided in subsection 2, shall be subject to a plan review and inspection by the commissioner or an independent building inspector appointed by the commissioner.”
  • Certificate of occupancyLimited

    Certificates of occupancy or use for buildings subject to Iowa's State Building Code and certificates approving specified buildings, facilities, or installations for licensure.

    • A local building department issues certificates of occupancy or use when required by ordinance.
    • When issued for a building constructed under the state building code, the certificate must certify conformity with the code and is in the form prescribed by the governing body of the governmental subdivision.
    • For facilities governed by Iowa Administrative Code chapter 481.280, if a certificate of occupancy is required for use, it will not be issued until the inspection fee is paid.
    • Chapter 481.280.5 applies to a certificate approving a building, facility, or installation for occupancy upon request from an owner or owner's agency when applicable rules are satisfied and all fees are paid.
    • The state sources do not require a certificate of occupancy for every building statewide.

    additional reinspection fee: 125 USD (Applies for each additional reinspection after the initial reinspection when original deficiencies remain uncorrected.)

    “Issue certificates of occupancy or use, permits, licenses, and other documents in connection with the construction of buildings or structures as may be required by ordinance. (1) A certificate of occupancy or use for a building or structure constructed in accordance with the provisions of the state building code shall certify that the building or structure conforms to the requirements of the code. The certificate shall be in the form the governing body of the governmental subdivision prescribes.”
  • Minimum dwelling sizeDistrict specific (with conditions)

    Minimum dwelling-size standards imposed by county zoning regulations on manufactured homes in Iowa.

    • County zoning under chapter 335 is optional and applies only where the county board of supervisors has adopted it.
    • The local standard must be the same standard applicable to a site-built single-family dwelling on the same lot.
    • The cited provision does not supply a statewide numeric minimum square-footage value.
    “However, a zoning ordinance or regulation shall require that a manufactured home be located and installed according to the same standards, including but not limited to a permanent foundation system, set-back, and minimum square footage, which would apply to a site-built, single family dwelling on the same lot, and shall require that the home is assessed and taxed as a site-built dwelling.”
  • Manufactured homesAllowed (with conditions)

    Placement and residential occupancy of manufactured homes under county zoning statewide in Iowa

    • A county may not disallow the proposed residential structure solely because it is a manufactured home.
    • The home must be located and installed under the same standards applicable to a site-built single-family dwelling on the same lot, including permanent foundation, setback, and minimum square footage standards.
    • The home must be assessed and taxed as a site-built dwelling.
    • A county may not require an incompatible perimeter foundation system and may not require more than one permanent foundation system.
    • Outside a manufactured home community or mobile home park, requirements may ensure visual compatibility of the permanent foundation system with surrounding residential structures.
    • Recorded restrictive covenants are not abrogated.
    • Counties may regulate transportation, water, sewerage, and other land development; the statute also bars width standards greater than twenty-four feet and certain design standards when federal standards are met.

    maximum mandated width standard: <= 24 feet (if the housing otherwise complies with 42 U.S.C. §5403)

    “A county shall not adopt or enforce zoning regulations or other ordinances which disallow the plans and specifications of a proposed residential structure solely because the proposed structure is a manufactured home. However, a zoning ordinance or regulation shall require that a manufactured home be located and installed according to the same standards, including but not limited to a permanent foundation system, set-back, and minimum square footage, which would apply to a site-built, single family dwelling on the same lot, and shall require that the home is assessed and taxed as a site-built dwelling.”
  • Agricultural exemptionConditional

    Land, farm houses, farm barns, farm outbuildings, and other buildings or structures primarily adapted by reason of nature and area for agricultural purposes, while used for those purposes, under county ordinances adopted pursuant to Iowa Code chapter 335.

    • The exemption applies except to the extent required to implement section 335.27.
    • An ordinance may still apply to any structure, building, dam, obstruction, deposit, or excavation in or on the floodplains of any river or stream.
    • The county may not require an application, approval, or fee for the ordinance to be deemed inapplicable under this section.
    • Qualifying land, farm houses, farm barns, farm outbuildings, or other buildings or structures may qualify independently or in combination with other agricultural uses.
    • Land enrolled in a soil or water conservation program is considered land primarily adapted for agricultural purposes.
    • The exemption concerns ordinances adopted under chapter 335; chapter 335 applies to a county at the option of its board of supervisors.
    “no ordinance adopted under this chapter applies”
  • county zoning authorityGeneral

    Iowa counties may adopt zoning ordinances for land and structures within the county but outside the corporate limits of any city.

    • Chapter 335 applies to any Iowa county at the option of its board of supervisors.
    • The zoning power is subject to Iowa Code section 335.2: ordinances generally do not apply to agricultural land, farm houses, farm barns, farm outbuildings, or other structures primarily adapted for agricultural purposes while so used, except that ordinances may apply to structures, buildings, dams, obstructions, deposits, or excavations in or on river or stream floodplains.
    • A county may not require an application, approval, or fee for an ordinance to be deemed inapplicable to qualifying agricultural land or structures.
    • A county may not regulate, restrict, or prohibit the location of permanent buildings or temporary structures used for consumer-fireworks sales pursuant to section 10A.519 in locations zoned commercial or industrial.
    • The board of supervisors may divide the county into zoning districts, and regulations may differ among districts.
    • Regulations and restrictions require public-hearing and notice procedures under sections 335.6 and 331.305; district boundaries must identify the affected township and section and, if possible, streets or roads.
    • Energy-conservation and solar-access objectives do not require zoning in a county that did not have zoning before July 1, 1981.
    “applicable to any county [...] at the option of the board of supervisors [...] outside of the corporate limits of any city.”
  • county building authorityGeneral

    Iowa counties may adopt, administer, and enforce county building codes and may administer and enforce the state building code for buildings, including residential construction, in county jurisdiction outside incorporated municipalities, subject to statutory limitations.

    • A county building code may not apply within the incorporated area of a city except at the city's option.
    • A county building code may not apply within a city's two-mile limit under Iowa Code §414.23 to the extent the city has adopted a building code within that two-mile limit.
    • A county building code may not apply to farm houses or other farm buildings primarily adapted for agricultural purposes while so used or under construction for that use.
    • Administration and enforcement are conducted as prescribed by local law or ordinance.
    • The state building code applies in a governmental subdivision only after the governing body adopts an ordinance accepting it and files a certified copy with the commissioner; the ordinance fixes the effective date, which must be no more than six months after adoption.
    • A local building department may prohibit commencement of construction until a permit is issued after showing compliance with applicable state building-code provisions.
    • Thermal-efficiency energy-conservation standards apply to construction containing heated or cooled enclosed space, but the commissioner must provide appropriate exceptions where applying an energy-conservation requirement would be impractical.
    “The power to adopt, administer, and enforce the state building code shall be exercised in accordance with chapter 103A. The power to adopt by ordinance, administer, and enforce a county building code, is subject to the following restrictions: a. A county building code shall not apply within the incorporated area of a city except at the option of the city, and shall not apply within a city’s two-mile limit referred to in section 414.23, to the extent that the city has adopted a building code within the two-mile limit. b. A county building code shall not apply to farm houses or other farm buildings which are primarily adapted for use for agricultural purposes, while so used or under construction for that use.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Living in an RV — Long-term or permanent occupancy of recreational vehicles on private land in unincorporated Greene County.
  • Tiny homes — Tiny-home occupancy in unincorporated Greene County.
  • Off-grid sanitation — Off-grid sanitation systems in Greene County.
  • Mandatory utility hookup — Required connection to public water or sewer systems in Greene County.
  • Short-term rentals — Short-term rental use in Greene County.

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.

Living off-grid in Greene County, Iowa

Is Greene County a good place to live off-grid or homestead?

Greene County scores 53/100 on the Bolthole Index, a solid county profile. Its strengths: sparse surroundings — about 11,165 people within a 30-minute drive and low administrative friction for a quiet rural property. Watch-outs: workable self-sufficiency basics (35.1″/yr rainfall).

Do you need a building permit in Greene County, Iowa?

Greene County requires a building permit only in limited cases (such as floodplains or specific zones), and it enforces county zoning. Onsite septic is permitted by Greene County Environmental Health / Board of Health. Owner-builders may act as their own contractor to build their home. These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Greene County, Iowa?

Land in Greene County runs about $10,751 per acre, based on the latest county data.

What is the water situation in Greene County?

Greene County gets about 35.1" of rain a year, with severe drought in roughly 16.3% of years.

How remote is Greene County?

A representative private-land location has about 11,165 people within a 30-minute drive and 1,266,071 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

How Greene compares in Iowa

Compare side-by-side →See all 99 Iowa counties ranked →