Bolthole Index

Clinton County, Iowa

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

50Index Score / 100
#76 of 99 in Iowa

Unincorporated Clinton County, Iowa requires a zoning permit before construction begins on a non-farm structure1. County zoning also controls lot and setback standards, while incorporated cities administer their own zoning2. Clinton County Environmental Services regulates private onsite wastewater systems and requires the applicable septic construction permit34.

At a glance

Building permit
Required before non-farm construction in unincorporated Clinton County1
Zoning
Yes; county zoning applies in unincorporated areas2
Septic
County permit and inspection requirements apply45
RV living
Not confirmed; ask the Zoning Department before occupancy2
Tiny home
No specific occupancy or minimum-size rule confirmed; ask Zoning2
Owner-builder
Own-property work is exempt from state contractor registration, not county permits6
Private well
County regulation and a new-well construction fee apply7
Floodplain
Development standards and a permit apply in regulated floodplain areas8

Who to call

Building permits

Clinton County Zoning Department

Zoning permits, parcel standards, setbacks, lot sizes and floodplain questions

563-659-8149

[email protected]

226 11th St. DeWitt, IA 52742

Septic permits

Clinton County Environmental Services

Private onsite wastewater permits, system sizing and inspections

563-659-8148

226 11th St. DeWitt, IA 52742

Roads & driveways

Clinton County Secondary Roads

County-road access, entrances and work within county road right-of-way

563-244-0564

[email protected]

1900 N. 3rd St. Clinton, IA 52732

Contact details are copied from each office’s official page and were checked against it on September 27, 2026.

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

Yes, for county-regulated construction. Unincorporated Clinton County requires a zoning permit and the appropriate fee before work begins on any non-farm structure1. Construction includes erecting, reconstructing, moving, converting, altering or adding to a building or structure, and horizontal or vertical expansion also requires a permit1. A detached structure smaller than 100 square feet with no permanent attachment is exempt from the zoning-permit requirement, but it still must meet setbacks1.

The county's published fees include $100 for a primary structure and $50 for an accessory structure or home addition; fees double when construction begins before permit approval9. New dwellings and principal structures also need an Occupancy Compliance Certificate before occupancy, and a change in use or occupancy requires the certificate10. We could not confirm a general county building-code adoption or inspection schedule, so ask the Zoning Department which construction standards and inspections apply11.

Who issues Clinton County building permits, and how do you reach the office?

The Clinton County Zoning Department administers the zoning permits commonly called building permits for unincorporated property11. The office is at 226 11th St. in DeWitt; call 563-659-8149 or email [email protected]11. The department states that a permit can be issued only for a lot that meets both the Zoning Ordinance and Subdivision Regulations11.

For an application, prepare a scaled site plan showing lot boundaries, existing features, the proposed building, distances to property lines, wells and existing or proposed septic systems12. A building that needs septic also requires acceptable percolation-test results before zoning-permit approval, and the completed application must be submitted with the required fee12. Do not begin construction before approval12. Ask Clinton County Secondary Roads about an entrance or other work affecting county road right-of-way; its Engineer's Office is at 1900 N. 3rd St. in Clinton and can be reached at 563-244-0564 or [email protected]13.

Does Clinton County have zoning?

Yes. Clinton County zoning applies in unincorporated areas, while incorporated cities administer their own zoning and should be contacted separately2. County districts publish different density, lot-size and yard standards, so the parcel's district must be identified before laying out a house or accessory building14.

Minimum lot size is 2 acres in the A-1, AR-1 and R-1 districts15. In R-2, the minimum is 9,600 square feet where community water and wastewater are available, but a lot using onsite septic needs at least 2 acres15. Setbacks also vary by district and by front, side, corner and rear yard16. A county permit can be issued only on a lot that complies with both the zoning and subdivision rules17. We could not confirm one general minimum dwelling size, building-height limit or lot-coverage limit, so get the parcel-specific standards from the Zoning Department before choosing a plan11.

How do septic permits work in Clinton County?

Clinton County Environmental Services regulates the design, construction and installation of private onsite wastewater systems throughout Clinton County3. For a new or replacement system, contact the Sanitarian's Office about the absorption-field location, arrange percolation testing when applicable, provide the test results and household fixture information for sizing, and purchase the applicable construction permit4. The residential new-or-renovation permit fee is $1504.

Notify the Sanitarian's Office when construction begins and again when the system is ready for inspection; the county requires at least 2 hours' notice, although 24 hours is appreciated5. Call Environmental Services at 563-659-8148 or visit 226 11th St. in DeWitt18. Only about 1.3% of county soils are rated without severe limits for a conventional septic drain field, so make the site evaluation an early contingency rather than assuming a standard field will work19. Iowa also generally requires a certified septic inspection before a qualifying property transfer20.

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

We could not confirm a county rule specifically authorizing full-time RV occupancy on a private parcel in unincorporated Clinton County. Ask the Zoning Department whether the proposed duration, zoning district and utility arrangement are allowed before buying or moving an RV onto the land11. Habitable buildings and buildable lots must have an approved well or public water supply and an approved means of wastewater collection and treatment21.

We also could not confirm a Clinton County tiny-home occupancy rule or a countywide minimum dwelling size. A tiny home still needs parcel-specific zoning review, and non-farm construction remains subject to the county permit requirement21. Iowa prevents a county from rejecting a proposed residence solely because it is a manufactured home, but the home must meet the same permanent-foundation, setback and minimum-square-footage standards that apply to a site-built single-family home on the same lot22. The state own-property exemption concerns contractor registration only and does not waive county permits or compliance6.

How do you build a home in Clinton County, step by step?

  1. Ask the Clinton County Zoning Department to confirm that the parcel is in county jurisdiction, identify its zoning district, and verify that the lot complies with zoning and subdivision rules21711.
  1. Confirm the district's lot size and setbacks, then ask Secondary Roads about a county-road entrance or right-of-way work151613.
  1. Lay out the well, septic area and home together; habitable buildings and buildable lots need approved water and wastewater arrangements21.
  1. Complete any required percolation testing and obtain the applicable septic construction permit from Environmental Services124.
  1. Submit the zoning-permit application, fee and scaled site plan, and wait for approval before construction12.
  1. If the site is in a regulated floodplain, obtain the floodplain approval and meet the applicable elevation or floodproofing standard8.
  1. Schedule the septic inspection and obtain the Occupancy Compliance Certificate before occupying the new dwelling510.

What should you check before buying land in Clinton County?

Verify jurisdiction first because incorporated cities administer their own zoning, while Clinton County zoning governs unincorporated land2. Ask Zoning to confirm the mapped district, legal-lot status, setbacks and whether a proposed dwelling is allowed before relying on a listing's description141711.

Make a septic contingency central to the purchase because only about 1.3% of county soils are rated without severe limitations for a conventional drain field, and a building needing septic must have acceptable percolation-test results before zoning-permit approval1912. Confirm the approved water source because habitable buildings and buildable lots need an approved well or public water system21. Check mapped floodplain status because regulated development can require the lowest floor to be at least 1 foot above the base-flood elevation8. Confirm county-road access with Secondary Roads13. For carrying costs, the effective property-tax rate is about 1.5%, with a median annual property-tax bill of about $2,3822324.

Watch-outs

  • Starting construction before zoning-permit approval doubles the applicable county permit fee9.
  • An onsite-septic lot in the R-2 district needs at least 2 acres even though the district otherwise lists a 9,600-square-foot minimum where community utilities are available15.
  • Full-time RV occupancy, a specific tiny-home rule, a general building-inspection schedule and the full scope of the farm-structure exception remain unconfirmed; ask the Clinton County Zoning Department before relying on any of them11.

Sources

  1. Zoning Permits & Application, quoted and re-checked
  2. Frequently Asked Questions - Zoning (2026 county census)
  3. Wastewater Treatment, quoted and re-checked
  4. Wastewater Treatment, quoted and re-checked
  5. Wastewater Treatment, quoted and re-checked
  6. Iowa Code 2026, Chapter 91C — Construction Contractors (Iowa statewide rule), quoted and re-checked
  7. Water Supply & Wells, quoted and re-checked
  8. Flood Plain Development Application/Permit, quoted and re-checked
  9. Fee Schedule, quoted and re-checked
  10. Clinton County Zoning Ordinance, quoted and re-checked
  11. Clinton County Zoning Department (clintoncounty-ia.gov)
  12. Frequently Asked Questions - Zoning, quoted and re-checked
  13. Clinton County Secondary Roads (clintoncounty-ia.gov)
  14. Zoning Permits & Application, quoted and re-checked
  15. Zoning Permits & Application, quoted and re-checked
  16. Zoning Permits & Application, quoted and re-checked
  17. Zoning Permits & Application, quoted and re-checked
  18. Clinton County Environmental Services (clintoncounty-ia.gov)
  19. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  20. Iowa Code §455B.172, Jurisdiction of department and local boards (Iowa statewide rule), quoted and re-checked
  21. Clinton County Zoning Ordinance, quoted and re-checked
  22. Iowa Code §335.30, Manufactured and modular homes (Iowa statewide rule), quoted and re-checked
  23. Effective property tax rate: Bolthole Index county data
  24. Median property tax bill: Bolthole Index county data

Written September 27, 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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County locator

Clinton County in Iowa

50
County map
Clinton County highlighted among the Iowa counties · colored by Index score

How Clinton County scores

Seclusion39100% ev.
Self-Sufficiency33100% ev.
Admin Boringness48100% ev.
Durability60100% ev.
Property Autonomy51100% ev.
Carry Cost60100% 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 →

$182kTypical home
1.5%Property tax
$9,600Land / acre
37.8"Annual rain
5% of yrsSevere drought
3.2 / yr (+3.1)Mid-century 100°F days
14.5 daysMid-century dry spell
1.8" (+7.5%)Mid-century 1-day rain
1.78×Wildfire change factor
100%Forward climate coverage
$1,493Home insurance / yr
2.4% / yrInsurance growth
0.82%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
43,775People within 30 min
2,041,546People within 2 hr
40,310Radius comparison (15 mi)
66.4People / sq mi
3.2%Federal land
86.4%Land at 15% slope or less
1.3%Septic soil without severe limits
5,487 acWorkable land screen
9.3%Wooded land
35.4 tonsBiomass / forest ac
49.3°FAvg temp

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Answers from the rulebook for Clinton County

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

Clinton County rules

  • Building permitRequired

    Construction of non-farm structures in unincorporated Clinton County.

    • Permit application and fee are required before construction.
    • Construction includes erection, reconstruction, moving, conversion, alteration, or addition.
    • Expansion horizontally or vertically requires a permit.
    • Structures under 100 square feet with no permanent attachment are exempt from the zoning-permit requirement but must meet setbacks.
    • The cited rule applies to non-farm structures in unincorporated areas.
    “Permit applications with the appropriate fee are required prior to beginning construction for all non-farm structures in the unincorporated areas of Clinton County.”
  • Certificate of occupancyRequired

    New dwellings and principal structures, and changes in use or occupancy, under the county zoning ordinance.

    • No new dwelling or principal structure may be occupied until an Occupancy Compliance Certificate is issued.
    • A change in use or occupancy also requires the certificate.
    • Failure to obtain it before occupancy is an ordinance violation subject to Chapter X penalties.
    “no change in the use or occupancy of land or building shall be made, nor shall any new dwelling or principal structure be occupied until an Occupancy Compliance Certificate has been issued by the Administrator.”
  • County-wide zoningPresent (with conditions)

    County zoning in the unincorporated areas of Clinton County.

    • Incorporated cities administer their own zoning information and should be contacted separately.
    “Permits are required prior to beginning construction for all non-farm structures in the unincorporated areas of Clinton County.”
  • Zoning districtsPublished (with conditions)

    County zoning districts and district-specific dimensional standards in unincorporated Clinton County.

    • The official permit page publishes standards for A-1, AR-1, R-1, R-2, C-1, C-2, M-1, and M-2 districts.
    • The zoning ordinance also contains a Planned Unit Development District.
    • District standards vary by use and dimensional requirement.
    “Zoning District | Maximum Density | Minimum Lot Size | Front | Side | Corner | Rear”
  • Minimum lot sizeSpecified

    County zoning districts in unincorporated Clinton County.

    • A-1, AR-1, and R-1 minimum lot size is 2 acres.
    • R-2 minimum is 9,600 square feet where community water and wastewater facilities are available; on-site septic requires at least 2 acres.
    • C-1 and C-2 minimum is 1 acre.
    • M-1 and M-2 minimum is 5 acres.

    A-1 minimum lot size: 2 acres · AR-1 minimum lot size: 2 acres · R-1 minimum lot size: 2 acres · R-2 minimum lot size: 9600 square feet (2 acres required with on-site septic)

    “R-2 | 4 units/1 acre* | 9,600 sq. ft.* | 30 | 10 | 25 | 35”
  • SetbacksSpecified

    County zoning districts in unincorporated Clinton County.

    • Setbacks vary by zoning district and by front, side, corner, and rear yard.

    A-1 front setback: 50 feet · A-1 side setback: 15 feet · A-1 corner setback: 30 feet · A-1 rear setback: 40 feet · R-1 front setback: 30 feet · R-1 side setback: 15 feet · R-1 corner setback: 30 feet · R-1 rear setback: 35 feet

    “A-1 | 1 unit/40 acres | 2 acres | 50 | 15 | 30 | 40”
  • Who permits septicCounty

    Private on-site wastewater treatment systems installed in Clinton County.

    • The county health department regulates design, construction, and installation.
    “Regulates the design, construction and installation of all private on-site treatment systems installed in Clinton County”
  • Septic permitRequired

    New, renovated, replacement, altered, expanded, or repaired private wastewater systems.

    • Residential new or renovation septic permit fee is $150.
    • Non-residential new or renovation septic permit fee is $200.
    • Holding tanks/vault toilets, component replacements, and systems installed before permitting have separate fees.
    • The county page states that a construction permit or other applicable permit must be purchased.

    residential septic permit: 150 USD (new or renovation) · non-residential septic permit: 200 USD (new or renovation) · component replacement permit: 50 USD (replacement of septic tank or distribution box) · permit for system installed prior to permitting or approval: 250 USD (construction has been started)

    “Complete application and purchase septic system construction permit ($150.00), or other applicable permit, at Sanitarian's Office.”
  • Septic inspectionRequired

    New or replacement septic systems and other systems subject to county inspection.

    • The applicant must notify the Sanitarian’s Office when construction begins and when the system is ready for inspection.
    • Two hours minimum notice is required.
    • Component replacement permits for septic tanks or distribution boxes do not require inspection.

    minimum inspection notice: >= 2 hours

    “Notify the Sanitarian's Office of the time of beginning construction or reconstruction (24 hrs. is appreciated if possible), and of the time when the system will be ready for inspection. (2 hr. minimum notice required).”
  • Well permitRequired

    Construction and installation of private water wells in Clinton County.

    • The county health department regulates construction and installation of all private water wells.
    • New well construction fee is $150.
    • The page also describes sampling of new and existing wells.

    new well construction fee: 150 USD

    “Water Supply Well Permit and Enforcement Program”
  • Mandatory utility hookupConditional

    Habitable buildings and buildable lots proposed for development under the county zoning ordinance.

    • All habitable buildings and buildable lots must have an approved well or public water system.
    • All habitable buildings and buildable lots must have an approved means of wastewater collection and treatment.
    • The ordinance also identifies water service, wastewater treatment and disposal, electrical service, telecommunications service, stormwater management, and streets as essential public facilities.
    “All habitable buildings and buildable lots shall be connected to an approved well or public water system which is capable of providing safe drinking water.”
  • Subdividing landRegulated (with conditions)

    Subdivision proposals and lots subject to Clinton County subdivision regulations.

    • County zoning permits can only be issued for lots meeting the Subdivision Regulations.
    • The Health Department participates in subdivision review concerning wastewater treatment, disposal, and water supply.
    • Subdivision fees vary by minor, major, concept-plan, preliminary-plat, and final-plat applications.
    “Zoning permits can only be issued for construction on lots that meet all requirements of the Zoning Ordinance and Subdivision Regulations.”
  • Building in a floodplainRequired

    New or substantially improved buildings and development in county-regulated floodplain areas.

    • Residential lowest floor, including basement, must be at least 1 foot above the 100-year base flood elevation.
    • Non-residential lowest floor must be elevated or floodproofed at least 1 foot above the 100-year base flood elevation.
    • The developer or owner must provide as-built lowest-floor certification by a registered engineer, architect, or land surveyor.
    • Other Iowa DNR, Corps of Engineers, or other permits may also be required.
    • Application fee is $25.

    minimum elevation above 100-year base flood elevation: >= 1 foot (residential elevation; non-residential elevation or floodproofing)

    “THIS PERMIT IS ISSUED WITH THE CONDITION THAT THE LOWEST FLOOR (INCLUDING BASEMENT) OF ANY NEW OR SUBSTANTIALLY IMPROVED RESIDENTIAL BUILDING WILL BE ELEVATED AT LEAST 1.0 FOOT ABOVE THE 100 YR. (BASE) FLOOD ELEVATION.”
  • Permit feesPublished (with conditions)

    County zoning and related land-use permits.

    • Construction permit fees include primary structure $100, accessory structure $50, home addition $50, and communication tower $300.
    • Permit fees double if construction begins without an approved permit.
    • Subdivision, floodplain, temporary-use, variance, special-exception, appeal, rezoning, and PUD fees are separately listed.
    • The page states the schedule is effective December 20, 2021.

    primary structure fee: 100 USD · accessory structure fee: 50 USD · home addition fee: 50 USD · floodplain development fee: 25 USD

    “Permit fees double if construction begins without an approved permit being obtained.”
  • Permit processPublished (with conditions)

    County zoning-permit applications for construction in unincorporated Clinton County.

    • Submit a site plan showing lot boundaries, existing features, proposed building, property-line distances, wells, and septic systems.
    • A percolation test with acceptable results is required before approval for buildings requiring septic.
    • Submit the completed application with the required fee.
    • Construction may not begin until permit approval.
    “A percolation test with acceptable results must be done prior to approval of a zoning permit for any building which requires a septic system.”

Iowa rules that apply here

  • 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.”
  • 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.”
  • Accessory dwellingsAllowed (with conditions)

    City regulation of accessory dwelling units statewide in Iowa, within a zoning district where a single-family residence is an allowed principal use

    • At least one accessory dwelling unit must be allowed on the same lot as a single-family residence.
    • The accessory dwelling unit must comply with applicable building regulations under chapter 103A.
    • The unit may not exceed 1,000 square feet or 50 percent of the size of the single-family residence, whichever is larger; unfinished basements are excluded from the size calculation.
    • Historic-building-code restrictions, deed restrictions, and common-interest-community rules may limit or prohibit construction or use.
    • A manufactured or mobile home used as the accessory dwelling unit must be converted to real property by placement on a permanent foundation and assessed for real-estate taxes under section 435.26.
    • A historic-preservation area may regulate the unit to the extent the city or commission determines it incongruous and records its reasons.
    • Effective July 1, 2026.

    maximum accessory dwelling unit size: 1,000 square feet or 50% of the single-family residence, whichever is larger (unfinished basements excluded from the size calculation)

    “A city shall allow a minimum of one accessory dwelling unit on the same lot as a single family residence within a zoning district where a single family residence is an allowed principal use, in accordance with the following conditions:”
    One more reviewed finding on this topic
    • Allowed (with conditions) — County regulation of accessory dwelling units statewide in Iowa, within a zoning district where a single-family residence is an allowed principal use
      “A county shall allow a minimum of one accessory dwelling unit on the same lot as a single family residence within a zoning district where a single family residence is an allowed principal use, in accordance with the following conditions:”
  • 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.”

Still unanswered

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

  • Minimum dwelling size — Minimum dwelling size in unincorporated Clinton County.
  • Lot coverage — Lot coverage limits in unincorporated Clinton County.
  • Building height — General building-height limits in unincorporated Clinton County.
  • Tiny homes — Tiny-home occupancy in unincorporated Clinton County.
  • Off-grid sanitation — Off-grid sanitation systems in unincorporated Clinton County.
3 more unanswered
  • Agricultural exemption
  • Driveway access
  • Short-term rentals

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 Clinton County, Iowa

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

Clinton County scores 50/100 on the Bolthole Index, a solid county profile. Its strengths: manageable long-term carry cost and 17 operating mines. Watch-outs: workable self-sufficiency basics (37.8″/yr rainfall) and about 43,775 people within a 30-minute drive.

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

Clinton County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Clinton County Environmental Services (Sanitarian's Office / 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 Clinton County, Iowa?

Land in Clinton County runs about $9,600 per acre, based on the latest county data.

What is the water situation in Clinton County?

Clinton County gets about 37.8" of rain a year, with severe drought in roughly 5% of years.

How remote is Clinton County?

A representative private-land location has about 43,775 people within a 30-minute drive and 2,041,546 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.

Off-grid gear

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

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How Clinton compares in Iowa

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