Bolthole Index

Marshall County, Iowa

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

47Index Score / 100
#87 of 99 in Iowa

Unincorporated Marshall County, Iowa requires a building permit for most construction, and the county zones all unincorporated land. Structures of 120 square feet or less are exempt from the building-permit requirement, but parcel-specific zoning, floodplain and platting rules can still matter.12

At a glance

Building permit
Required for most construction; structures of 120 square feet or less are exempt1
Zoning
All unincorporated land is county-zoned2
Septic
Regulated by Marshall County Environmental Health under county and state rules34
RV living
A special-use permit is required beyond 90 days in any 365-day period5
Tiny home
No specific county tiny-home rule was confirmed; zoning-district standards still apply6
Owner-builder
Own-property work is exempt from state contractor registration, not from county permits7
Private well
A new dwelling needs its well permit before the building permit8

Who to call

Planning & zoning

Marshall County Planning & Zoning

County planning, zoning, building-permit and floodplain questions for unincorporated Marshall County

641-844-2707 (Office)

[email protected]

Courthouse 1 E. Main St., Suite 140 Marshalltown, IA 50158

Septic permits

Marshall County Environmental Health

Environmental-health regulation, septic systems and private wells

641-844-2707 (Office)

[email protected]

Courthouse 1 E. Main St., Suite 140 Marshalltown, IA 50158

Roads & driveways

Marshall County Engineer & Secondary Roads

Entrance and driveway permits for access from county right-of-way

1 E. Main St. Marshalltown, IA 50158

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 Marshall County, Iowa?

Yes. In unincorporated Marshall County, excavating for, erecting, constructing, reconstructing, enlarging, altering or moving a building or structure requires a building permit from the Zoning Administrator.1 A structure of 120 square feet or less does not need that building permit, and the county reviews applications for zoning, floodplain and platting conformance.1

Marshall County publishes a value-based fee schedule: work valued from $0 through $10,000 is charged 3% of value, while work valued at $10,001 or more is charged $300 plus 0.2% of total value.9 The county materials reviewed do not identify the residential building code used for county permits, require building inspections, or establish a county certificate of occupancy. Ask Marshall County Planning & Zoning what plans and completion approvals apply to the specific project before ordering materials.10

Who issues building permits in Marshall County, Iowa?

Marshall County Planning & Zoning is the first stop for building permits and land-use questions on unincorporated property; the office assists with land-use policy and regulatory enforcement.10 The office is in the Marshall County Courthouse at 1 E. Main St., Suite 140, Marshalltown, IA 50158, and its office phone is 641-844-2707.10

Permit administration is split by subject. Marshall County Environmental Health handles county septic and private-well matters, while Engineer & Secondary Roads requires a permit for a driveway or entrance coming from county right-of-way.311 Electrical permits and inspections are a separate matter, so ask Planning & Zoning which state or local electrical process applies to the project. The applicant for a county building permit must be the owner, contract buyer of record or a written agent.1

Does Marshall County, Iowa have zoning?

All of unincorporated Marshall County is zoned, and permits are required for most structures, including dwellings, pole buildings, decks and signs.2 Incorporated cities may administer their own rules, so a parcel inside city limits needs an answer from that city rather than the county.2

The county ordinance uses multiple districts with different permitted uses and dimensional schedules.6 For example, the R-3 district requires a single-family lot of at least 1 acre and at least 60 feet of frontage or lot width.12 In that district, a single-family dwelling has a 35-foot front setback, 7-foot side and flag setbacks, and a 35-foot rear setback.13 Those figures are an R-3 example, not countywide dimensions. Ask Planning & Zoning to confirm the parcel's district, permitted use, setbacks, floodplain status and any special-use process before designing a site plan.10

How do septic permits work in Marshall County, Iowa?

Marshall County Environmental Health regulates onsite septic systems for unincorporated properties under the county Board of Health and Iowa private-sewage rules.3 Iowa law gives county boards of health responsibility for private sewage facilities while the Iowa Department of Natural Resources retains concurrent authority, including authority over direct discharges to state waters.4

Only 4.9% of Marshall County soils are rated without severe limitations for a conventional septic drain field, so make the site evaluation an early contingency rather than assuming a standard field will fit.14 A private system serving a building must generally be inspected before a qualifying ownership transfer, and the statewide rule includes exceptions and a binding-agreement process when temporary conditions prevent inspection.15 Contact Environmental Health at 641-844-2707 before closing or finalizing a house location to confirm the permit application, soil-analysis requirements and transfer paperwork for the parcel.16

Can you live in an RV or tiny home in Marshall County, Iowa?

In unincorporated Marshall County, an RV, fifth-wheel trailer or camper used as a habitation for more than 90 days in any 365-day period requires a special-use permit.5 The county materials reviewed do not establish a separate general temporary-camping rule, so ask Planning & Zoning how shorter stays, utilities and active construction affect the parcel.10

Marshall County has no confirmed rule written specifically for tiny homes. A small dwelling still has to fit the parcel's zoning district and applicable dwelling standards; in the R-3 example, a one-story dwelling needs at least 1,000 square feet of ground-floor area and a two-story dwelling needs at least 800 square feet, excluding open porches, garages and steps.17 Manufactured homes are allowed in the A-1 agricultural district when placed on a permanent foundation, converted to real property and taxed as a site-built dwelling.18

Building a home in Marshall County, Iowa: what are the steps?

  1. Confirm that the parcel is outside city limits, then ask Marshall County Planning & Zoning for its zoning district, allowed residential use, setbacks, floodplain status and platting constraints.1910
  2. Confirm legal access: a residential lot generally needs at least 40 feet on a public road or an exclusive unobstructed private access easement at least 20 feet wide for one dwelling.20
  3. If access comes from county right-of-way, file the entrance or driveway permit with Engineer & Secondary Roads before construction.11
  4. Arrange septic review with Environmental Health, especially because only 4.9% of county soils rate without severe limits for a conventional drain field.314
  5. If a private well will serve the new dwelling, have the well contractor complete the application; the well permit must issue before the building permit.8
  6. Submit the building-permit application and fee to Planning & Zoning before excavation or construction begins.19

What should you check before buying land in Marshall County, Iowa?

Start with jurisdiction and zoning: confirm whether the parcel is unincorporated, identify its county zoning district, and verify that the intended dwelling and accessory uses are allowed.2 Check recorded access as carefully as physical access because the county requires qualifying road frontage or a qualifying private easement for a residential lot.20

Budget for soils and wastewater before treating a site as buildable; only 4.9% of county soils rate without severe limitations for a conventional drain field.14 Confirm whether public water is available because Marshall County will not issue a private-well permit where community or public water is accessible, and a private well for a new dwelling must be permitted before the building permit.8 Ask Planning & Zoning about floodplain review because building applications are checked for floodplain conformance.1 For cost context, the county's effective property-tax rate is 1.5% and its median annual property-tax bill is $2,030.2122

Watch-outs

  • The county's published permit requirement applies to unincorporated Marshall County; incorporated cities may use separate local rules.2
  • An owner working on the owner's own property is exempt from Iowa contractor registration, but that exemption does not waive county permits or other applicable approvals.7
  • A new private well serving a dwelling must be permitted before Marshall County issues the building permit.8
  • The county materials reviewed do not confirm residential building inspections or a certificate-of-occupancy process; ask Planning & Zoning what closeout applies before construction starts.10

Sources

  1. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  2. County Ordinances - Marshall County, Iowa, quoted and re-checked
  3. Marshall County IA - Environmental Health (2026 county census)
  4. Iowa Code §455B.172, Jurisdiction of department and local boards (Iowa statewide rule), quoted and re-checked
  5. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  6. County Ordinances - Marshall County, Iowa, quoted and re-checked
  7. Iowa Code 2026, Chapter 91C — Construction Contractors (Iowa statewide rule), quoted and re-checked
  8. Wells - Environmental Health - Marshall County, quoted and re-checked
  9. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  10. Marshall County Planning & Zoning (marshallcountyia.gov)
  11. Marshall County Engineer & Secondary Roads (marshallcountyia.gov)
  12. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  13. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  14. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  15. Iowa Code §455B.172, Jurisdiction of department and local boards (Iowa statewide rule), quoted and re-checked
  16. Marshall County Environmental Health (marshallcountyia.gov)
  17. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  18. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  19. Zoning Applications & Permits, quoted and re-checked
  20. Zoning Ordinances including Ordinance No. 10 Platting and Subdivision, quoted and re-checked
  21. Effective property tax rate: Bolthole Index county data
  22. 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

Marshall County in Iowa

47
County map
Marshall County highlighted among the Iowa counties · colored by Index score

How Marshall County scores

Seclusion40100% ev.
Self-Sufficiency26100% ev.
Admin Boringness50100% ev.
Durability58100% ev.
Property Autonomy51100% ev.
Carry Cost59100% 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 →

$197kTypical home
1.5%Property tax
$9,375Land / acre
36.1"Annual rain
11.5% of yrsSevere drought
3.4 / yr (+3.2)Mid-century 100°F days
17 daysMid-century dry spell
1.89" (+10.9%)Mid-century 1-day rain
1.83×Wildfire change factor
100%Forward climate coverage
$1,642Home insurance / yr
2.9% / yrInsurance growth
1.08%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
44,713People within 30 min
1,922,871People within 2 hr
42,872Radius comparison (15 mi)
69.9People / sq mi
0.4%Federal land
94.4%Land at 15% slope or less
4.9%Septic soil without severe limits
17,711 acWorkable land screen
4.8%Wooded land
28.2 tonsBiomass / forest ac
48.2°FAvg temp

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Answers from the rulebook for Marshall County

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

Marshall County rules

  • Building permitRequired

    Excavating, erecting, constructing, reconstructing, enlarging, altering, or moving a building or structure in unincorporated Marshall County.

    • No structure 120 square feet or less in area is required to obtain a building permit.
    • The application is reviewed for zoning, floodplain, and platting conformance.
    • The applicant must be the owner, contract buyer of record, or written agent.

    permit exemption area: <= 120 sq ft (No structure 120 sq. ft. or less in area shall be required to obtain a building permit.)

    “It shall be unlawful to do any excavating, erecting, constructing, reconstructing, enlarging, altering or moving of any building or structure until a Building Permit shall have been issued by the Zoning Administrator.”
  • County-wide zoningPresent (with conditions)

    County zoning in unincorporated Marshall County.

    • The county ordinance is listed as compiled and last amended 12/23/1996.
    • Incorporated municipalities may administer separate local rules.
    “All of unincorporated Marshall County is zoned and permits are required for most structures (pole buildings, dwellings, decks, signs, etc.).”
  • Local zoningPresent (with conditions)

    County-administered zoning in the unincorporated portion of Marshall County.

    • This claim does not characterize zoning administered by incorporated municipalities.
    “All of unincorporated Marshall County is zoned and permits are required for most structures (pole buildings, dwellings, decks, signs, etc.).”
  • Zoning districtsPublished (with conditions)

    County zoning districts in unincorporated Marshall County.

    • The county ordinance contains district articles for A-1 Agricultural, R-1, R-2, R-3, C-1, and other districts, with district-specific dimensional and use rules.
    • The county ordinance page identifies a compiled zoning ordinance and separate zoning articles.
    “3 - Zoning Ordinance - Compiled Last Amended: 12/23/1996”
  • Minimum dwelling sizeSpecified

    Single-family dwellings in county residential zoning districts; the cited example is the R-3 district.

    • The R-3 district requires minimum ground-floor area exclusive of open porches, garages, or steps.
    • Other districts have different dimensional schedules.

    one-story minimum ground-floor area: >= 1000 sq ft (Exclusive of open porches, garages or steps.) · two-story minimum ground-floor area: >= 800 sq ft (Exclusive of open porches, garages or steps.)

    “MINIMUM GROUND FLOOR AREA* One Story: 1,000 sq. feet Two Story: 800 sq. feet *(Exclusive of open porches, garages or steps.)”
  • Minimum lot sizeSpecified

    Residential development in the R-3 district.

    • The cited dimensional schedule is district-specific.

    single-family lot area: >= 1 acre · single-family frontage/lot width: >= 60 ft

    “The following minimum requirements shall be observed in the "R-3" District: Use Lot Area Frontage/Lot Width Lot Area per Family Single family dwelling 1 acre 60 ft. 1 acre”
  • SetbacksSpecified

    Single-family dwellings in the R-3 district.

    • The cited setbacks are district-specific.

    front setback: >= 35 ft · side setback: >= 7 ft · flag setback: >= 7 ft · rear setback: >= 35 ft

    “SET-BACK REQUIREMENTS Use Front Side Flag Rear Single family dwelling 35 ft. 7 ft. 7 ft. 35 ft.”
  • Living in an RVLimited

    Recreational vehicle, fifth-wheel trailer, or camper used as a habitation in unincorporated Marshall County.

    • Use as a habitation for more than 90 days in any 365-day period requires a special-use permit.

    maximum habitation period without special-use permit: <= 90 days in any 365-day period (Longer use requires a special-use permit.)

    “No recreational vehicle nor fifth wheel trailer or camper shall be used as a habitation for more than 90 days in any 365 day period without a special use permit.”
  • Manufactured homesAllowed (with conditions)

    Manufactured homes in the A-1 agricultural district.

    • The manufactured home must be placed on a permanent foundation and converted to real property and taxed as a site-built dwelling as provided by law.
    “Single Family Residences - Includes single family dwellings, manufactured homes when placed on a permanent foundation, and converted to real property and taxed as site-built dwelling as provided by law; and farmstead which has been severed from the farm and is no longer held and operated in conjunction with an agricultural land use.”
  • Well permitRequired

    Private water wells serving a new dwelling in Marshall County.

    • The application must be completed by the well contractor and returned with payment.
    • A well-site survey is conducted.
    • Permits are not issued to individuals with access to community or public water supply.
    “If your water supply will be serving a new dwelling, a well permit must be issued prior to issuing the building permit.”
  • Mandatory utility hookupConditional

    Residential Planned Unit Development overlay districts in Marshall County.

    • The R-PUD overlay is used with specified residential zoning districts and the AR comprehensive land-use-plan district.
    • Common water and common sewage treatment systems are required.
    • Common sewage treatment systems require Iowa DNR Waste Water Division approval before final Zoning Commission approval.
    “The R-PUD shall be permitted only where common water and common sewage treatment systems are utilized.”
  • Subdividing landRegulated (with conditions)

    Subdivision platting and required improvements in the unincorporated portion of Marshall County.

    • The subdivider must install required improvements or post a bond, surety bond, or cash escrow before final plat approval.
    • The county ordinance is listed as dated 12/1/2004.
    “Any subdivider of land within the unincorporated portion of the county required by this Ordinance to prepare a subdivision plat shall, at the subdivider’s expense, install and construct all improvements required by this Ordinance or shall post either a bond, surety bond, or cash escrow before the final plat is approved by the Board.”
  • Driveway accessRequired

    Lots containing residential structures in unincorporated Marshall County.

    • A residential lot must abut a public road or have an exclusive, unobstructed private access easement.
    • The required easement is 20 feet wide for one dwelling and 50 feet wide when serving two or more single-family dwellings or one or more two-family or multiple-family dwellings.

    public-road frontage: >= 40 ft (A private access easement may be used instead.) · private access easement for one dwelling: >= 20 ft · common access easement for multiple dwellings: >= 50 ft

    “Except as otherwise provided herein, any lot containing a structure used in whole or in part for residential purposes shall either abut for a minimum of forty (40) feet on a public road or have an exclusive, unobstructed private easement of access a minimum of twenty (20) feet wide to a public road.”
  • Permit feesPublished (with conditions)

    Marshall County building permits.

    • For building values from $0 through $10,000, the fee is 3% of value.
    • For values of $10,001 and up, the fee is $300 plus 0.2% of total value.
    • The county page and ordinance state the same schedule.

    building value $0-$10,000 fee: 3% of value USD · building value $10,001 and up fee: $300 plus 0.2% of total value USD

    “For values of $0-$10,000 a fee of 3% of the value. For values of $10,001 and up a fee of $300 plus 0.2% of the total value.”

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.”
  • 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.”
  • 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:”
  • Who permits septicMixed (with conditions)

    Statewide private sewage disposal regulation is shared between the Iowa Department of Natural Resources and county boards of health.

    • County boards of health must adopt and enforce standards at least as stringent as, and consistent with, commission standards.
    • The Department of Natural Resources retains concurrent authority and regulates direct discharges to waters of the state.
    • If a county board of health fails to fulfill its responsibilities, the department may exercise departmental authority.
    “Each county board of health shall regulate the private water supply and private sewage disposal facilities located within the county board’s jurisdiction, including the enforcement of standards adopted pursuant to this section.”
  • Septic inspectionRequired

    Private sewage disposal systems serving buildings with one through four dwelling units, before qualifying ownership transfers statewide.

    • Inspection is required before transfer of ownership, including seller-financed real estate contracts.
    • The county recorder may not record the deed or conveyance document without a certified inspector report, unless weather or temporary physical conditions prevent inspection and the buyer executes a binding acknowledgment.
    • The requirement applies to sale, exchange, real estate contract, or other purchase of real estate and improvements.
    • Exceptions include specified court-ordered, foreclosure-related, fiduciary, family, demolition, recently installed system, partition, tax-sale, low-consideration, and qualifying family-entity transfers.
    • The septic tank must be opened and pumped at inspection, unless evidence shows it was properly pumped within three years before inspection by a licensed commercial septic tank cleaner.
    • A failing system must be renovated; a properly treating system without an unsanitary condition need not meet current construction standards.
    • Only a department-certified inspector may conduct the inspection.
    • An inspection is valid for two years for ownership transfers during that period.

    dwelling units: 1-4 · inspection validity: 2 years (for ownership transfers during that period) · prior septic pumping evidence: <= 3 years (must be by a department-licensed commercial septic tank cleaner) · civil penalty for fraudulent report: 5000 USD (and certification suspension for one year)

    “If a building where a person resides, congregates, or is employed is served by a private sewage disposal system, the sewage disposal system serving the building shall be inspected prior to any transfer of ownership of the building.”
  • Permit processPartial

    Requests for access connections, driveways, or entrances to Iowa primary highways administered by the Iowa Department of Transportation.

    • The permitting process is administered by Iowa DOT district offices.
    • The permit application must be approved before work may begin.
    • The approval process may include internal Iowa DOT review by different offices.
    • The applicant may be asked for more information.
    • A traffic impact analysis is required for all Type A and Type B access permits.
    “In Iowa, the permitting process is administered by the Iowa DOT's district offices.”
  • 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.

  • Lot coverage — Lot coverage in Marshall County zoning districts.
  • Building height — Building-height limits in Marshall County zoning districts.
  • Camping on your land — Temporary camping in unincorporated Marshall County.
  • Tiny homes — Tiny-home occupancy in unincorporated Marshall County.
  • Off-grid sanitation — Off-grid sanitation systems in Marshall County.
2 more unanswered
  • Agricultural exemption
  • 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 Marshall County, Iowa

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

Marshall County scores 47/100 on the Bolthole Index, a solid county profile. Its strengths: higher long-term carry cost. Watch-outs: workable self-sufficiency basics (36.1″/yr rainfall) and about 44,713 people within a 30-minute drive.

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

Marshall County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Marshall County Environmental Health (county Board of Health, under Iowa DNR private sewage rules). 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.

Can you live in an RV or tiny home on your land in Marshall County?

Living in an RV on your own land in Marshall County is limited to specific cases: Recreational vehicle, fifth-wheel trailer, or camper used as a habitation in unincorporated Marshall County. Use as a habitation for more than 90 days in any 365-day period requires a special-use permit. Confirm with the county before relying on it.

How much does land cost in Marshall County, Iowa?

Land in Marshall County runs about $9,375 per acre, based on the latest county data.

What is the water situation in Marshall County?

Marshall County gets about 36.1" of rain a year, with severe drought in roughly 11.5% of years.

How remote is Marshall County?

A representative private-land location has about 44,713 people within a 30-minute drive and 1,922,871 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 Marshall County means bringing your own water and power. The kit we’d start with:

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How Marshall compares in Iowa

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