Bolthole Index

Iosco County, Michigan

Zoning, building permits and septic rules in Au Sable Township, Michigan

Au Sable Township is a charter township in Iosco County, Michigan. Au Sable Township adopts its own zoning, so inside its limits Au Sable Township’s rules apply, not the county’s. 6 rules below are quoted from official sources and independently re-checked, most recently on November 3, 2026. Rules for unincorporated land are on the Iosco County page.

Answers from the rulebook for Au Sable Township

Au Sable Township’s own rules

  • Building permitRequired

    Erecting or excavating for a building or structure inside Au Sable charter township. The requirement is a township zoning permit; this record does not establish a separate building permit under the state construction code.

    • Zoning permit must be issued before construction or excavation begins.
    • Zoning permit application fee shown on township forms is $25.00 (check).

    zoning permit fee: 25 USD (payment by check, per township form)

    “the erection of a building or structure, or excavation for any building or structure, prior to the issuance of a zoning permit is a violation of the charter township of ausable zoning ordinance.”
  • Local zoningPresent (with conditions)

    Land inside Au Sable charter township limits (Iosco County, Michigan). The township administers its own zoning ordinance (listed on the township site as Zoning Ordinance 114); this is not county zoning.

    • Ordinance text itself was not opened; district dimensional standards are not verified in this record.
    • Zoning permit required before erecting or excavating for any building or structure.
    “the current zoning ordinance for ausable township, iosco county, michigan is available as a downloadable.pdf file using the below button.”
  • Zoning districtsPublished (with conditions)

    Zoning map of Au Sable charter township

    • Maps are offered as downloads (17x11 and 44x34 versions, 2021); the district list and standards are in the zoning ordinance text, not opened.
    “we also have several zoning maps available for download as well.”
  • Permit feesPublished (with conditions)

    Township zoning and code-enforcement permits inside Au Sable charter township

    • Fines for failing to obtain required permits are separate and can range from $50.00 to $500.00 per the same page.

    permit fee: 25 USD (generally, per township ordinances page)

    “fees for these permits are generally $25.00, whereas fines can range from $50.00 to $500.00”
  • Permit processPublished (with conditions)

    Residential zoning permit applications inside Au Sable charter township

    • Processing time is stated as five working days, schedule and workload permitting.
    • Application copies are submitted to the zoning administrator; site-plan applications need ten copies.

    processing time: <= 5 working days (schedule and workload permitting)

    “applications will be processed within five (5) working days (schedule and workload permitting).”

Rules another office applies inside Au Sable Township

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

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Au Sable Township or Iosco County directly.

  • Owner-builder exemption — Owner-builder permit exemption in Au Sable charter township
  • Building code adopted — Building code in Au Sable charter township
  • Inspections — Building inspections for new homes in Au Sable charter township
  • Certificate of occupancy — Certificate of occupancy for new homes in Au Sable charter township
  • Minimum dwelling size — Minimum dwelling floor area in Au Sable charter township, all districts
14 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Septic inspection
  • Off-grid sanitation
  • Agricultural exemption
  • Subdividing land
  • Building in a floodplain
  • 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.

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

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