Bolthole Index

Decatur County, Iowa

Zoning, building permits and septic rules in Weldon, Iowa

Weldon is a city in Decatur County, Iowa. Septic permits inside Weldon come from Decatur County (Decatur County Environmental Health · 641-446-3665). 6 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the Decatur County page.

Answers from the rulebook for Weldon

Rules another office applies inside Weldon

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

  • Who permits septicCounty (with conditions)

    Onsite septic systems on land inside Weldon city, Iowa (Weldon is within Decatur County). The county packet does not name Weldon; this is the county's program covering the county area, recorded at county scope because the schema does not allow a county claim with municipality-specific geography.

    • State rule 567-69 also applies; the state chapter sets the construction permit requirement (see state septic claims).
    • Whether Weldon city has its own sewer system that would replace septic was not checked.
    “the application for permit shall be filled out completely and turned into the decatur county environmental health office at 207 ne idaho st., leon iowa.”
  • Septic permitRequired

    New septic system construction on land inside Weldon city, Iowa (Decatur County program)

    • Pumping a septic tank is maintenance; no notification or permit is needed.
    • Replacement of short sections of pipe, 1 stick or less, does not require a permit; if the tank has to be replaced, a permit is needed and the entire system must be upgraded.
    • Rebuilding a home or moving a manufactured home onto a site with an existing system is treated as new construction and may require upgrading or replacing the existing system.
    • Source is an undated county guideline packet that says it is reviewed yearly; confirm the current version with the Decatur County Environmental Health Office.

    pipe replacement exempt length: <= 1 stick (tank replacement or new direct discharge requires a permit)

    “new construction requires an application be filled out and a permit issued prior to a contractor starting work on the septic system.”
    One more reviewed finding on this topic
    • Required — Installation or alteration of a private onsite wastewater treatment system (psds) on land inside Weldon city, Iowa, under state rule
      “69.1(4) construction permit required. no psds shall be installed or altered as described in 69.1(3) "b" unless a construction permit issued by the administrative authority is obtained prior to construction.”
  • Septic inspectionRequired

    Septic final inspection for work on land inside Weldon city, Iowa (Decatur County program)

    • Final inspection must be requested at least 24 hours in advance; the county packet notes the sanitarian is not always available.
    • A time-of-sale inspection requires both parties to agree.

    notice before final inspection: >= 24 hours

    “as the sanitarian is not always available, notification for final inspection is needed 24 hours or more in advance.”
    One more reviewed finding on this topic
    • Required — Newly constructed private onsite wastewater systems on land inside Weldon city, Iowa
      “c. final inspections. the administrative authority shall conduct an at-location inspection of all newly constructed psdss before the system is backfilled. a final as-built drawing shall be made as part of the final inspection and kept on file with the construction permit.”
  • Off-grid sanitationLimited

    Dwellings with no plumbing on land inside Weldon city, Iowa (Decatur County guidance)

    • Dwellings with plumbing that discharge wastewater out of the building need a septic system with primary and secondary treatment under the state rule.
    • A dwelling without a toilet connected to plumbing also needs an impervious vault toilet.
    “any dwelling where plumbing does not exist shall be served by an impervious vault toilet meeting the requirements of iac 567-69.13(455b).”

Still unanswered

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

  • Building permit — General building permit for new residential construction inside Weldon city, Iowa
  • Owner-builder exemption — Owner-builder permit exemption inside Weldon city, Iowa
  • Building code adopted — Building code adopted for construction inside Weldon city, Iowa
  • Inspections — General building inspections for construction inside Weldon city, Iowa
  • Certificate of occupancy — Certificate of occupancy for new homes inside Weldon city, Iowa
21 more unanswered
  • Local zoning
  • Zoning districts
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

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 Weldon publishes no rule on the point, not that none exists. Decatur County’s page lists the county offices to call.

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