Bolthole Index

Marshall County, Indiana

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

50Index Score / 100
#69 of 92 in Indiana

Unincorporated Marshall County, Indiana requires a building permit, and the county Building Department issues permits and performs inspections12. County zoning review and an Improvement Location Permit may also be part of the project, while an unsewered home needs a septic permit through the Marshall County Health Department34.

At a glance

Building permit
Required in unincorporated Marshall County12
Zoning
Yes; county Planning administers zoning and land-use applications35
Septic permit
Required for new, replacement and repair work through county Health4
Private well
A county permit is required for a new well or work on an existing well6
Owner-builder
No permit exemption confirmed; ask the Building Department about contractor and applicant rules72
RV living
Not confirmed for a private lot; ask Planning about the parcel and proposed occupancy35
Tiny home
No separate rule confirmed; zoning and building approval still need review31
Conventional septic soils
Countywide soil data rates 9.4% as free of severe conventional drain-field limitations8

Who to call

Building permits

Marshall County Building Department

Building permits, construction inspections, certificates of occupancy and contractor registration

(574) 935-8531

Marshall County Building 112 W Jefferson St Room 302 Plymouth, IN 46563

Online permits →

Planning & zoning

Marshall County Planning Department

Improvement Location Permits, zoning, subdivision applications, variances, land-use questions and floodplain-development questions

(574) 935-8540

Marshall County Building 112 W Jefferson St Room 302 Plymouth, IN 46563

Online permits →

Septic permits

Marshall County Health Department

Residential onsite sewage and private-well permitting

(574) 935-8565

990 Illinois St, Plymouth, IN 46563

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, Indiana?

Yes. Marshall County requires building permits for structures in unincorporated areas, and the Building Department administers building, HVAC, electrical and plumbing standards1. The department issues building permits, conducts construction inspections and issues certificates of occupancy2. The county office also serves as the building-permit and inspection agency for Argos, Bourbon, Bremen, Culver and LaPaz; Plymouth maintains its own building inspection department2. Indiana uses state-adopted model codes amended for Indiana, and local jurisdictions may establish permit and inspection procedures910. No owner-builder exemption from permitting is confirmed, so an owner planning to perform work should ask the Building Department what applicant and contractor-registration requirements apply72.

Who issues Marshall County building permits, and how do you reach them?

The Marshall County Building Department is the first call for a building permit in unincorporated Marshall County and in the towns the department serves2. The office is in the Marshall County Building at 112 W Jefferson St, Room 302, Plymouth, IN 46563, and its phone number is (574) 935-85312. Before a permit application, the department says a site plan, property address and any applicable driveway, utility, septic, drainage, zoning, variance or state design-release approvals must be completed2. The Planning Department shares the same address and can be reached at (574) 935-8540 for Improvement Location Permits, zoning classifications, permitted uses and development standards5. Both departments link to the county’s online permitting portal25.

Does Marshall County have zoning?

Yes. The Marshall County Planning Department administers the county zoning ordinance, subdivision ordinance and related regulations35. Planning processes Improvement Location Permits, subdivisions, variances and other land-use applications, and staff answers questions about zoning classifications, permitted uses and development standards5. Jurisdiction matters: Plymouth, Argos, Bourbon, Bremen and Culver have separate plan commissions for their incorporated and unincorporated planning areas, so confirm which commission controls the parcel before relying on a county-office answer5. We could not confirm a single countywide minimum home size, lot size, setback, height or lot-coverage rule; ask the controlling plan commission for the parcel’s district standards5. Indiana’s agricultural state design-release classification does not by itself erase local zoning, permits or inspections11.

How do septic permits work in Marshall County?

The Marshall County Health Department requires a septic permit for new construction, replacement and repair of a residential onsite sewage system4. A new or replacement system starts with a soil profile analysis, followed by the county’s design requirements, an application, the proposed design and the applicable fee4. The nonrefundable application fee is $60 for new construction and $30 for replacement, and a qualifying soil analysis remains valid for seven years if the boring area stays undisturbed4. Health makes a site visit before design approval; the permit lasts two years, with another review required when construction has not started within 180 days124. Only 9.4% of mapped county soils rate as free of severe limitations for a conventional drain field, so treat the soil work as an early feasibility test rather than a formality8. Call Health at (574) 935-856513.

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

We could not confirm a Marshall County rule generally allowing long-term RV occupancy on a private lot, so take the parcel address and proposed occupancy to the controlling plan commission before buying35. Indiana’s campground rules do not answer the private-lot question because they govern regulated campgrounds and exclude tracts divided into individually deeded lots14. We also could not confirm a separate tiny-home category or a countywide minimum dwelling size. A tiny home intended as a dwelling should be reviewed through the same zoning and building channels as other residential construction unless Planning and Building identify a specific classification or exception31. An occupied dwelling outside sewer service still needs compliant sanitation; Indiana requires a septic tank and soil-absorption system and does not allow drywells or cesspools as onsite sewage treatment15.

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

  1. Identify the controlling plan commission and ask Planning to confirm the zoning district, proposed residential use and site standards35.
  2. Confirm the property address and prepare a site plan showing lot lines and other structures for Building2.
  3. If sewer is unavailable, begin the soil profile, septic design and Health Department permit process before fixing the house location4.
  4. If a private well is planned, submit the well application and proposed design through Health; the driller must be licensed by Indiana and registered in Marshall County6.
  5. Secure any applicable driveway, drainage, variance, utility or state design-release approvals before applying for the building permit2.
  6. Apply through the county permitting portal and list the contractors and subcontractors required by the application2.
  7. Schedule the construction inspections and obtain the certificate of occupancy through the Building Department2.

What should you check before buying land in Marshall County?

Check zoning jurisdiction, legal road access, wastewater, water and flood exposure before treating Marshall County land as buildable5164617. A driveway onto an Indiana state highway needs permission through INDOT’s electronic permit system; access on another road belongs to the government with jurisdiction over that road16. Most development in an Indiana floodway falls under Department of Natural Resources jurisdiction, while flood-fringe work may avoid a state permit but still require local approval1718. Marshall County requires permits for new wells and work on existing wells, and residential wells must be at least 50 feet from septic6. The effective property-tax rate is about 0.7%, with a median annual bill near $1,2601920.

Watch-outs

  • Plymouth, Argos, Bourbon, Bremen and Culver have separate plan commissions for their planning jurisdictions; confirm which office controls the parcel5.
  • Only 9.4% of mapped county soils rate as free of severe conventional drain-field limitations, so obtain the parcel-specific soil analysis early84.
  • A state agricultural design-release classification does not establish an exemption from Marshall County zoning, permits or inspections11.
  • We could not confirm private-lot RV occupancy or a separate tiny-home rule; ask the controlling plan commission before purchase35.

Sources

  1. Marshall County Building Department (2026 county census)
  2. Marshall County Building Department (co.marshall.in.us)
  3. Marshall County Planning Department (2026 county census)
  4. Marshall County Health Department: Onsite Sewage Systems - Septic System, quoted and re-checked
  5. Marshall County Planning Department (co.marshall.in.us)
  6. Marshall County Health Department: Well Permitting, quoted and re-checked
  7. Marshall County Building Department (2026 county census)
  8. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  9. Rules of the Indiana Fire Prevention and Building Safety Commission (Indiana statewide rule), quoted and re-checked
  10. DHS: Boards and Commissions (Indiana statewide rule), quoted and re-checked
  11. Plan Review FAQs (Indiana statewide rule), quoted and re-checked
  12. Marshall County Health Department: Onsite Sewage Systems - Septic System, quoted and re-checked
  13. Marshall County Health Department (in.gov)
  14. Environmental Public Health: 410 IAC 6-71 Campgrounds (Indiana statewide rule), quoted and re-checked
  15. 410 IAC 6-8.3 Residential On-Site Sewage Systems (Indiana statewide rule), quoted and re-checked
  16. INDOT Driveway Permit Guide 2024 (Indiana statewide rule), quoted and re-checked
  17. Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
  18. Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
  19. Effective property tax rate: Bolthole Index county data
  20. 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 Indiana

50
County map
Marshall County highlighted among the Indiana counties · colored by Index score

How Marshall County scores

Seclusion18100% ev.
Self-Sufficiency64100% ev.
Admin Boringness40100% ev.
Durability82100% ev.
Property Autonomy71100% ev.
Carry Cost75100% 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 →

$268kTypical home
0.7%Property tax
$7,190Land / acre
39.8"Annual rain
1.8% of yrsSevere drought
4.6 / yr (+4.4)Mid-century 100°F days
12 daysMid-century dry spell
1.75" (+8.5%)Mid-century 1-day rain
1.69×Wildfire change factor
100%Forward climate coverage
$1,376Home insurance / yr
0.4% / yrInsurance growth
1.38%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
140,321People within 30 min
7,979,410People within 2 hr
64,979Radius comparison (15 mi)
104.5People / sq mi
0.3%Federal land
100%Land at 15% slope or less
9.4%Septic soil without severe limits
26,105 acWorkable land screen
18.2%Wooded land
59.5 tonsBiomass / forest ac
49.7°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

  • Who permits septicCounty (with conditions)

    Residential onsite sewage systems in Marshall County administered through the Marshall County Health Department.

    • Commercial new construction falls under Indiana Department of Health approval, and a Marshall County onsite sewage system permit is also required.
    • Some newer technologies require operating permits; conventional systems, flood and pressure dose systems, and mounds generally do not need operating permits.
    “Before the design is approved, MCHD will make a site visit”
  • Septic permitRequired

    New construction, replacement, and repair of residential onsite sewage systems in Marshall County.

    • A completed application, proposed septic design, and relevant fee are required before issuance.
    • New construction or replacement requires soil profile analysis; the analysis is valid for seven years if the boring area remains undisturbed.
    • The application fee is $60.00 for new construction and $30.00 for replacement, and is non-refundable.
    • The permit is valid for two years; if construction has not started within 180 days, MCHD must conduct an additional review.
    • Repairs may not require a soil profile analysis; MCHD determines whether the repair qualifies.

    new construction permit fee: 60 USD (non-refundable) · replacement permit fee: 30 USD (non-refundable) · soil profile validity: 7 years (only while the boring area remains undisturbed) · permit validity: 2 years · additional review threshold: > 180 days (if construction has not started)

    “All Marshall County onsite sewage system permits require the homeowner to submit a completed application”
  • Well permitRequired

    New residential wells and repairs or maintenance to existing wells in Marshall County.

    • New well permits are for new wells; repair permits are for repairs or other maintenance to existing wells.
    • The homeowner must submit an application, proposed well design, and relevant fee before issuance.
    • Well drillers must be IDNR licensed and registered as contractors in Marshall County; registration is based on the calendar year.
    • The county health page states there is no county code on wells; residential wells are to be 50 feet from septic.

    well-to-septic separation: >= 50 feet (residential wells)

    “New Well Permits are issued for a new well, whereas a repair permit is issued for any repairs or other maintenance to an existing well.”
  • County-wide zoningPresent

    The Marshall County Planning Department administers the Marshall County Zoning Ordinance and Subdivision Ordinance, processing Improvement Location Permits and land-use applications.

    Marshall County Planning Department ↗Scouted from the county site, not yet independently re-checked

  • Owner-builder exemptionNot available

    The Building Commission requires that construction/modification of all structures in unincorporated areas meet state standards and be permitted/inspected; no owner-builder exemption from permitting is provided.

    Marshall County Building Department ↗Scouted from the county site, not yet independently re-checked

Indiana rules that apply here

  • Building permitLimited

    Building-permit or plan-review requirements for construction in Indiana; the state describes these as administrative provisions local jurisdictions may adopt and enforce.

    • Whether a building permit or plan review is required depends on the applicable local jurisdiction's administrative ordinance or process.
    • The cited IDHS statement says local jurisdictions retain authority to establish departments, create inspection schedules, establish fines, and create an order-review process.
    • IDHS states its summary represents the agency's position and is not binding; initial determinations about enforceability of a specific ordinance are left to the local unit administering it.
    “However, HEA 1575 did not eliminate the authority of local jurisdictions to adopt and enforce administrative provisions in building and fire safety ordinances, which include, among other things: (1) the establishment of departments; (2) the requirement to obtain a building permit or plan review; (3) the creation of inspection schedules; (4) the establishment of fines; or (5) the creation of an order review process.”
  • Building code adoptedAdopted (with conditions)

    Statewide Indiana construction subject to the Indiana Fire Prevention and Building Safety Commission's adopted building codes, including the Indiana Building Code and Indiana Residential Code.

    • The adopted codes consist of model codes amended for Indiana.
    • The 2014 Indiana Building Code under 675 IAC 13-2.6 is currently in effect and became effective December 1, 2014.
    • The 2020 Indiana Residential Code under 675 IAC 14-4.4 is currently in effect and became effective December 26, 2019.
    • Specific applicability depends on the structure and code category.

    Indiana Building Code effective date: 2014-12-01 · Indiana Residential Code effective date: 2019-12-26

    “The Fire Prevention and Building Safety Commission creates Indiana codes by adopting model codes and amending them to apply in Indiana.”
  • InspectionsLimited

    Construction inspections in Indiana, including Class I structures in jurisdictions without an approved building department and construction subject to a Construction Design Release.

    • In jurisdictions without an approved building department, IDHS Code Enforcement inspects Class I structures for construction compliance.
    • When a Construction Design Release is applied for through the Building Plan Review Section, IDHS Code Enforcement conducts construction-process and final inspections.
    • Agricultural buildings and one- and two-family residential structures fall under the local government entity; if no local government entity exists, the county government may provide inspections, and IDHS states that if there is no local government entity the residential issue becomes a private civil matter.
    “In jurisdictions where there is not an approved building department, Code Enforcement inspects Class I structures for construction compliance. When a Construction Design Release is applied for through the Building Plan Review Section, Code Enforcement will conduct inspections during the construction process and provide a final inspection. Agricultural buildings and residential structures (one- and two-family dwellings) fall under the jurisdiction of the local government entity.”
  • Off-grid sanitationLimited

    Residential sanitation in Indiana where a dwelling is not connected, or cannot be connected, to a sanitary sewerage system.

    • The dwelling must be provided with a compliant residential on-site sewage system including a septic tank and a soil absorption system that has not failed.
    • A temporary sewage holding tank is subject to written Indiana Department of Health approval, with specified exceptions for failed systems, soil conditions after a construction permit, and certain district, utility, or municipal sewage plans.
    • A holding tank operated as a primary residential disposal method for a sewer connection plan is limited to not more than one year unless the period is extended upon documentation of satisfactory operation.
    • Drywells and cesspools are not allowed for construction or use as on-site sewage treatment in Indiana.

    holding-tank sewer-connection period: <= 1 year (may be extended upon documentation of satisfactory operation)

    “septic tank and a soil absorption system”
  • Agricultural exemptionAvailable (with conditions)

    Buildings used only for an agricultural purpose on the land where they are located and not used for retail trade, for purposes of Indiana state Class 1 construction-design-release requirements.

    • The building must be used only for an agricultural purpose.
    • The building must be located on the land where the agricultural purpose occurs.
    • The building must not be used for retail trade.
    • This is an exemption from Class 1/state design-release classification; it does not establish exemption from every local inspection, zoning, building, fire, or other applicable requirement.
    • Indiana's official Code Enforcement FAQ states that local units of government inspect agricultural buildings if they have an ordinance requiring inspection.

    state design-release classification: not Class 1 (Does not resolve local inspection or zoning requirements)

    “Buildings used only for an agricultural purpose on the land where they are located and not used for retail trade are not Class 1 structures.”
  • Subdividing landRegulated (with conditions)

    Subdivision of lots or lands outside the corporate boundaries of a municipality in Indiana.

    • A correct plat must be recorded with the county recorder before selling lots.
    • The plat must show public places, public ways, and the length, width, and size of each lot.
    • A registered land surveyor must certify the correctness of the plat.
    • The subdivision plat must be submitted for approval by the board of county commissioners.
    • The county recorder may record the plat only if a certificate showing approval of the county commissioners is attached.
    • Once a subdivision-control ordinance is adopted and filed, the plan commission has exclusive control over approval of plats and replats covered by that ordinance.
    • The cited state summary distinguishes subdivisions outside municipalities; incorporated municipalities may have separate statutory or local procedures.
    “Subdivisions Outside Cities and Towns: A person who lays out a subdivision of lots or lands outside the corporate boundaries of any municipality shall record a correct plat of the subdivision in the office of the recorder of the county before selling any lots in the subdivision. The plat must show public places, public ways, and the length, width, and size of each lot.”
  • Driveway accessRequired

    Driveway connections and construction inside the right-of-way of Indiana state highways.

    • The governmental unit having jurisdiction over the street or highway must grant permission.
    • INDOT jurisdiction is limited to the Indiana state highway system; other governmental units may use the guide as a guideline.
    • Applications must be made through the INDOT Electronic Permit System.
    “State law requires the public to obtain permission from the governmental unit having jurisdiction over a street or highway”
  • Building in a floodplainLimited

    Development activities within the fringe portion of Indiana floodplains.

    • There is no state review or state permit for fringe development.
    • When a community adopts floodplain regulations, the regulations must be approved by the Department and may not be less restrictive than 312 IAC 10.
    • Most Indiana communities participate in the NFIP, which requires certain federal regulations to be adopted and enforced for the entire floodplain.
    • Local permits may still be required.
    “There is no State review of or permit issued for development activities within the fringe portion of the floodplain.”
    One more reviewed finding on this topic
    • Required — Most development activities in Indiana floodways, including fills, excavations, bridges, utilities, and non-residential structures.
      “The DNR Division of Water has jurisdiction in Indiana's floodways for most development activities.”
  • Permit feesPublished (with conditions)

    Published fees for specified Indiana DNR Division of Water and INDOT permits statewide.

    • Fees apply to the specified permit types and do not establish a single fee for every Indiana permit.
    • DNR lists fees by statute and permit application type; INDOT fees vary by driveway or road-approach subtype.

    DNR Flood Control Act excavation, fill, or non-residential construction in a floodway application fee: 200 USD · DNR Flood Control Act residential reconstruction in a floodway other than the Ohio River floodway application fee: 50 USD · DNR Flood Control Act residential construction or reconstruction in the Ohio River floodway application fee: 10 USD · INDOT private driveway, private field access, temporary driveway, or driveway removal fee: 55 USD · INDOT minor or sub-minor commercial driveway or minor public road approach fee: 150 USD · INDOT major commercial driveway or major public road approach fee: 600 USD

    “IC 14-28-1 | Flood Control Act - Excavation, fill, or non-residential construction in a floodway | $200”
  • Permit processPublished (with conditions)

    Indiana state construction design-release review for Class 1 structures; local permits may also be required.

    • The process applies to projects required to file with IDHS for a construction design release.
    • All work, including work exempted from state filing, may require local permits.
    • If additional documents are uploaded before the initial response, the 10-business-day period restarts.
    • A selected plan review may result in corrections before release.

    initial completeness or review determination: 10 business days (The period restarts if additional documents are uploaded before the response.) · selected-plan review response: 20 business days (Measured from delivery of the notice of plan review.) · response after corrected plans: 10 business days (Applies following receipt of corrections and continues until release.)

    “If your project is selected for a review, you will either receive a release or request for corrections to your plans within 20 business days”
  • Campground & park staysLimited

    Recreational vehicle occupancy at a regulated Indiana campground campsite, rather than residential occupancy on an individually deeded lot or other land outside the rule's campground definition.

    • A campground is an area where campsites are leased or rented and provisions are made for ten or more tents, recreational vehicles, park models, or vacation mobile homes.
    • The campground must be established, operated, and maintained for recreational, health, education, sectarian, business, or tourist activities away from established residences.
    • The rule excludes primitive campgrounds, youth camps, and tracts of land divided into individually deeded lots.
    • No more than one recreational vehicle or one vacation mobile home may be allowed on a designated campsite at the same time.
    • Campground construction, additions, or significant construction changes require plans submitted at least ninety days before construction for department review and approval; the plans must be certified by a registered engineer or architect licensed in Indiana.
    • The rule does not establish a general statewide authorization for long-term residential RV occupancy outside regulated campgrounds.

    minimum campground provisions: >= 10 tents, recreational vehicles, park models, or vacation mobile homes · maximum recreational vehicles per designated campsite: 1 vehicle (one vacation mobile home may be used instead) · advance plan-submission period: >= 90 days (the department may waive plan review for a minor alteration)

    “No more than one (1) recreational vehicle or one (1) vacation mobile home”
    One more reviewed finding on this topic

Still unanswered

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

  • Certificate of occupancy — Certificates of occupancy in Marshall County.
  • Local zoning — Aggregate local zoning across Marshall County municipalities and unincorporated areas.
  • Zoning districts — Published zoning districts in Marshall County.
  • Minimum dwelling size — Minimum dwelling size in Marshall County.
  • Minimum lot size — Minimum lot size in Marshall County.
11 more unanswered
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic inspection
  • Mandatory utility hookup
  • 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, Indiana

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

Marshall County scores 50/100 on the Bolthole Index, a solid county profile. Its strengths: a durable current and mid-century hazard profile and manageable long-term carry cost. Watch-outs: about 140,321 people within a 30-minute drive and more administrative friction around building and land use.

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

Marshall County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Marshall County Health Department. 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 Marshall County, Indiana?

Land in Marshall County runs about $7,190 per acre, based on the latest county data.

What is the water situation in Marshall County?

Marshall County gets about 39.8" of rain a year, with severe drought in roughly 1.8% of years.

How remote is Marshall County?

A representative private-land location has about 140,321 people within a 30-minute drive and 7,979,410 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 Indiana

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