Bolthole Index

Madison County, Iowa

Building permits, zoning and septic rules in Earlham, Iowa

Earlham, Iowa requires city building permits for home construction, with issuance handled by the city’s Administrative Official or designee.1 Earlham sets its own zoning inside city limits.2 In Madison County, private septic systems serving Earlham properties remain with Madison County Environmental Health, which also handles private well permits.34

At a glance

Building permits
City Administrative Official or designee issues building permits1
Zoning
City zoning and official zoning map apply2
Residential lot size
R District: 8,500 square feet with water and sewer available; 40,000 without public water or sewer, or with water but no sewer5
Septic systems
Madison County Environmental Health handles private septic permits and inspections67
Private wells
Well permits go through Madison County Environmental Health4
Moving in
Valid temporary or final Certificate of Occupancy required for a structure built under a building permit8

Who to call

Zoning

Earlham City Hall — Zoning Administrator contact

Contact the city Zoning Administrator and request routing to the Administrative Official for building permits.

515-758-2281

[email protected]

Building permits

City of Earlham Administrative Official

City building-code enforcement and issuance of applicable building permits.

Building permits

Earlham City Hall — Building Permit Applications

Published building permit and trade permit application forms.

515-758-2281

Septic permits

Madison County Environmental Health Office

Private well and septic-system permitting and inspection for Madison County

515-739-0283

[email protected]

Madison County Annex - Lower Level 201 West Court Winterset, IA 50273

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Off-grid gear

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

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Do you need a building permit in Earlham, IA?

Earlham’s Administrative Official or designee issues city building permits in compliance with the city zoning ordinance.9 Earlham adopts the 2021 International Residential Code, including appendix chapters, except provisions the city deletes, modifies or amends.10 Ask the Administrative Official which approvals your proposed house, addition or accessory structure needs before beginning work.9

Earlham building permit holders must schedule required inspections and obtain approvals before covering permitted work and at completion; failure can revoke the building permit and void associated approvals.11 Occupying a structure constructed under a building permit without a valid temporary or final Certificate of Occupancy is a city code violation.8

Who issues Earlham building permits, and how do you apply?

Contact Earlham City Hall to reach the city Zoning Administrator and request the Administrative Official responsible for building permits.129 Earlham’s official forms page publishes a new-construction building permit application, a building permit application for fences, sheds and sidewalks, and a trade permit application.13 Use the city forms page to choose the application for your project.13

Earlham building permit fees derive from the adopted City Fee Schedule; ask the Administrative Official for the current schedule and a project-specific fee calculation.1 We could not confirm current building permit fee amounts or a city owner-builder exemption; direct both questions to the Administrative Official.1

Does Earlham have zoning, lot-size limits and setback rules?

Earlham administers its own zoning ordinance, and the official zoning map and amendments determine a parcel’s current district.2 In Earlham’s R Residence District, a one-family dwelling needs at least 8,500 square feet of lot area where water and sewer are available.5 The R District minimum rises to 40,000 square feet where neither public water nor sewer is available, or where water is available but sewer is not.5 Ask the city Zoning Administrator to confirm both the district and utility availability before choosing a house plan.25

Accessory buildings and structures in Earlham residential districts cannot occupy more than 30 percent of any yard area or exceed 1,000 square feet of building area.14 We could not confirm numeric city setbacks; ask the Zoning Administrator for the applicable yard requirements.12

How do septic permits and private wells work inside Earlham?

Madison County Environmental Health handles private septic permits and inspections for Earlham properties using private sewage disposal.67 Iowa requires a construction permit before installing or altering a private sewage disposal system, and newly constructed systems need final inspection before backfilling.15

Public sewer availability comes first: Iowa rules prohibit installing, repairing or rehabilitating a private system when a publicly owned treatment works is available or a local ordinance requires connection.15 A treatment works may be considered unavailable when more than 200 feet from the proposed building or exterior drainage facility, subject to the administrative authority’s final determination; do not treat that distance as automatic permission for septic in Earlham.15 Ask the city about sewer connection and Environmental Health about private-system eligibility before designing sanitation.6 Private well permits for Earlham also go through Madison County Environmental Health.4

Can you live in an RV or tiny home on land in Earlham?

We could not confirm Earlham’s rules for long-term RV living, temporary camping, tiny-home occupancy, manufactured-home occupancy or accessory dwelling units; ask the city Zoning Administrator about your proposed dwelling and parcel before buying.12 Earlham’s residential accessory-building limits do not establish permission to use an accessory building as a dwelling.14

Earlham requires a valid temporary or final Certificate of Occupancy before occupying a structure constructed under a building permit.8 We could not confirm a minimum dwelling size or permission for off-grid sanitation inside Earlham; take those questions to the city Zoning Administrator and Madison County Environmental Health, respectively.1216

Building a home in Earlham: what are the steps, in order?

  1. Confirm the parcel’s Earlham zoning district with the city Zoning Administrator and check the official zoning map.2
  2. Confirm water and sewer availability before selecting a lot or house footprint; the R District one-family lot minimum depends on those services.5
  3. If proposing private septic or a well, contact Madison County Environmental Health for the applicable permits and inspections.64
  4. Get the city building permit application and ask the Administrative Official for the applicable approvals and adopted fee schedule.131
  5. Schedule required building inspections before covering work, obtain final approvals, and secure a valid Certificate of Occupancy before moving into the permitted structure.118

What stays with Madison County, and what should you check before buying in Earlham?

Earlham sets city zoning and administers city building permits, while Madison County Environmental Health remains the contact for private septic systems and wells.2134 For land outside Earlham city limits, use the Madison County guide: county zoning serves unincorporated areas.17

When buying an existing Earlham home with private septic, Iowa’s time-of-transfer inspection requirement applies to qualifying ownership transfers, subject to statutory exceptions; ask Environmental Health about the property’s inspection status before closing.18 Earlham also regulates subdivisions through its city subdivision chapter.19 We could not confirm Earlham’s driveway approval requirements or floodplain development conditions; ask the city Zoning Administrator before committing to an access layout or flood-prone lot.12

Watch-outs

  • Do not cover permitted Earlham construction before the required inspection approval; failure can revoke the building permit.11
  • R Residence District lot minimums in Earlham depend on water and sewer availability, not just the proposed house footprint.5
  • We could not confirm Earlham’s mandatory public water or sewer connection rule; ask the city before assuming a private well or septic system is an option.46

Sources

  1. 152.01 Administrative Provisions (Earlham), quoted and re-checked
  2. 165.04 Zoning Districts Established (Earlham), quoted and re-checked
  3. Environmental Health (Earlham), quoted and re-checked
  4. Environmental Health (Earlham), quoted and re-checked
  5. 165.44 Residence District (Earlham), quoted and re-checked
  6. Environmental Health (Earlham), quoted and re-checked
  7. Environmental Health (Earlham), quoted and re-checked
  8. codelibrary.amlegal.com (Earlham), quoted and re-checked
  9. City of Earlham Administrative Official (earlhamiowa.org)
  10. 152.02 Adoption of the 2021 International Residential Code (Earlham), quoted and re-checked
  11. codelibrary.amlegal.com (Earlham), quoted and re-checked
  12. Earlham City Hall — Zoning Administrator contact (earlhamiowa.org)
  13. Earlham City Hall — Building Permit Applications (earlhamiowa.org)
  14. 165.26 Accessory Buildings and Garages (Earlham), quoted and re-checked
  15. Chapter 69 — Private Sewage Disposal Systems (Iowa statewide rule), quoted and re-checked
  16. Madison County Environmental Health Office (madisoncounty.iowa.gov)
  17. Zoning | Madison County, Iowa, quoted and re-checked
  18. Iowa Code §455B.172, Jurisdiction of department and local boards (Iowa statewide rule), quoted and re-checked
  19. Chapter 166 Subdivision Regulations (Earlham), quoted and re-checked

Written October 12, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.

Answers from the rulebook for Earlham

Earlham’s own rules

  • Building code adoptedAdopted

    Building construction inside Earlham city limits.

    • The 2021 IRC is adopted in full except portions later deleted, modified, or amended.
    • Earlham also adopts other International Codes in Chapter 152.

    code edition: 2021 International Residential Code (except portions deleted, modified, or amended)

    “Pursuant to published notice and public hearing, as required by law, the International Residential Code, 2021 Edition, published by the International Code Council, is hereby adopted in full, including Appendix Chapters except for such portions as may hereinafter be deleted, modified or amended.”
  • InspectionsRequired

    Permitted construction inside Earlham city limits.

    • The permit holder must schedule required inspections and obtain final approvals before covering permitted work or at completion.
    • Failure can revoke the permit and void associated approvals.
    “It is the permit holder's responsibility to schedule the required inspections and obtain final approvals. Failure to schedule the required inspections and receive approval of work authorized by the permit before covering said work or at completion shall result in revocation of the permit and void any associated approvals granted by the City.”
  • Certificate of occupancyRequired

    Structures constructed under an Earlham building permit.

    • Occupancy before or without a valid temporary or final Certificate of Occupancy is a code violation.
    • Failure to follow up before expiration of a Temporary Certificate of Occupancy is also a violation.
    “Allowing occupancy of a structure, for which a person or company holds a building permit, prior to or without a valid Certificate of Occupancy (temporary or final) shall be deemed a violation of this code section and no future permits shall be issued to any person or company who has outstanding violations of this code or any other laws or ordinances of the City.”
  • Local zoningPresent

    Land inside Earlham city limits; Earlham adopts and administers its own zoning ordinance.

    • The official zoning map and amendments control current district status.
    “For the purpose of this Zoning Ordinance, the following six classes of districts are established within the City as shown on the official zoning map, which, together with all explanatory matter thereon, is adopted by reference and declared to be a part of this Zoning Ordinance:”
  • Zoning districtsPublished

    Zoning districts inside Earlham city limits.

    • The code identifies six district classes: A Agricultural, R Residence, C Commercial, M Industrial, F1 Flood Plain, and F2 Flood Hazard Area.
    • The official zoning map is controlling for current district status.
    “A – Agricultural District R – Residence District C – Commercial District M – Industrial District F1 – Flood Plain F2 – Flood Hazard Area”
  • Who permits septicCounty

    Private sewage disposal systems serving property inside Earlham city limits; Madison County Environmental Health administers the county septic function there.

    • Iowa DNR states local boards of health have primary responsibility for smaller private sewage disposal systems.
    • State minimum standards and any applicable DNR authority also apply.
    “In Iowa, local boards of health have primary responsibility for regulation of private sewage disposal systems (PSDSs, also known as onsite wastewater treatment systems) serving 4 homes or fewer or less than 15 people, while the Iowa DNR has primary responsibility for larger (public) systems.”
  • Septic permitRequired

    Private septic systems inside Earlham city limits where private sewage disposal is used.

    • Madison County Environmental Health performs septic system permitting.
    • Public sewer connection rules may instead apply where a public sewer is used or available.
    • State and county requirements govern the system.
    “Duties of the Environmental Health Officer (EHO) are, including but not limited to, performing environmental health services (i.e. well and septic system permitting and inspection).”
  • Septic inspectionRequired

    Private septic systems inside Earlham city limits.

    • Madison County Environmental Health performs septic system inspection.
    • Additional state requirements apply to systems subject to DNR permits or discharge programs.
    “In Iowa, the local county boards of health/environmental health departments are responsible for enforcement of the septic regulations and inspections.”
  • Well permitRequired

    Private wells inside Earlham city limits; Madison County Environmental Health is the local office handling well permits.

    • The county page states that well permits shall be completed through the Environmental Health Department.
    • Other state well-construction requirements may apply.
    “Well Permits shall be completed in the office of the Environmental Health Department”
  • Subdividing landRegulated (with conditions)

    Subdivision of land inside Earlham city limits.

    • Chapter 166 contains Earlham's subdivision regulations, including preliminary and final plat procedures, fees, and design standards.
    “CHAPTER 166 SUBDIVISION REGULATIONS 166.01 Authority; Applicability; Jurisdiction”
  • Permit processPublished (with conditions)

    Building permit administration inside Earlham city limits.

    • The Administrative Official or designee enforces the International Codes and issues applicable permits.
    • Permit holders must schedule inspections and obtain final approvals before covering work or at completion.
    • Permit fees derive from the adopted City Fee Schedule.
    “Administration of this ordinance shall be as provided in this section and in the following sections of the several codes named which are hereby adopted by reference to provide procedures for local enforcement of the codes, constituting the International Codes.”

Rules another office applies inside Earlham

Earlham does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Minimum lot sizeSpecified

    One-family dwellings in Earlham's R Residence District.

    • Minimum lot area depends on public utility availability.
    • Where no public water or sewer, or water but no sewer, the one-family minimum is 40,000 square feet.
    • Where water and sewer are available, the one-family minimum is 8,500 square feet.

    minimum lot area with water and sewer available: 8500 square feet (one-family dwelling in R District) · minimum lot area with no public water or sewer: 40000 square feet (one-family dwelling in R District) · minimum lot area with water but no sewer: 40000 square feet (one-family dwelling in R District)

    “Minimum lot area in the R District shall be as provided in the following schedule:”
  • Lot coverageSpecified

    Accessory buildings and structures in residential districts inside Earlham city limits.

    • Accessory buildings and structures may not occupy more than 30 percent of any yard area.
    • Accessory buildings and structures may not exceed 1,000 square feet of building area.

    maximum accessory-structure yard occupancy: 30 percent of any yard area · maximum accessory-structure building area: <= 1000 square feet

    “Accessory buildings and structures shall not occupy more than 30 percent of any yard area on a lot and shall not exceed 1,000 square feet of building area.”
  • Building heightSpecified

    Buildings in Earlham's R Residence District.

    • Principal building height is limited to two and one-half stories and 35 feet.
    • Accessory structures are limited to one story and 18 feet.

    principal building height: <= 35 feet (R District; also limited to 2.5 stories) · accessory structure height: <= 18 feet (R District; also limited to 1 story)

    “Building height in the R District is limited to two and one-half stories, but not exceeding 35 feet in height; and no accessory structure shall exceed one story or 18 feet in height.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Earlham or Madison County directly.

  • Owner-builder exemption — Owner-builders performing construction inside Earlham city limits.
  • Minimum dwelling size — Minimum dwelling size inside Earlham city limits.
  • Living in an RV — Long-term or permanent RV occupancy on private land inside Earlham city limits.
  • Camping on your land — Temporary camping inside Earlham city limits.
  • Tiny homes — Tiny-home occupancy inside Earlham city limits.
9 more unanswered
  • Manufactured homes
  • Accessory dwellings
  • Off-grid sanitation
  • Mandatory utility hookup
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Earlham publishes no rule on the point, not that none exists. Madison County’s page lists the county offices to call.

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