Zoning, building permits and septic rules in Inwood, Iowa

Rules another office applies inside Inwood

Inwood 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 septicMixed (with conditions)

  Private sewage disposal systems on land inside Inwood city limits: the state DNR and the local county board of health are both administrative authorities under the state rule. Which one acts for Inwood was not confirmed.

  • The state rule text names the Iowa DNR or the local county board of health as administrative authority; the Lyon County board of health's role for Inwood was not verified on an official page.
  • Iowa DNR/county split is set by Iowa Code 455B.172 and chapter 137, which were not opened.

  ““administrative authority” means the department or the local county board of health as authorized by iowa code section 455b.172 and chapter 137.”

• Septic permitRequired

  New or altered private sewage disposal systems inside Inwood city, where no public sewer (POTW) is available; construction permit is issued by the administrative authority (DNR or local county board of health)

  • Applies only where a publicly owned treatment works is not available; where it is available, a PSDS may not be installed.
  • A POTW may be considered unavailable only when it is more than 200 feet from the proposed building or drainage facility, as the rule states.
  • Permit must be obtained before construction.

  POTW availability distance threshold: 200 feet (POTW may be considered unavailable only when located more than 200 feet from the proposed building)

  “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

  Newly constructed private sewage disposal systems inside Inwood city where public sewer is not available

  • Inspection is required before the system is backfilled.
  • The inspector is the administrative authority (DNR or local county board of health).

  “the administrative authority shall conduct an at-location inspection of all newly constructed psdss before the system is backfilled.”

• Off-grid sanitationLimited

  Buildings inside Inwood city that generate domestic sewage and have no public sewer (POTW) available

  • Where no POTW is available, an approved PSDS must serve the building; a holding tank may be used only if all other PSDS options are impractical.

  “when a potw is not available, every building wherein persons generate domestic sewage shall be provided with an approved psds. a holding tank for waste may be used only if all other psds options are impractical.”

• Mandatory utility hookupConditional

  New homes and buildings inside Inwood city: sewer connection depends on whether a publicly owned treatment works (POTW) is available within 200 feet

  • No PSDS may be installed where a POTW is available or where a local ordinance requires connection to a POTW.
  • A POTW may be considered unavailable when located more than 200 feet from a proposed building, as the rule states.
  • When a POTW becomes available within 200 feet, existing buildings on a PSDS must connect within a time frame set by the administrative authority.
  • Water connection rule for Inwood not found; no Inwood sewer-connection ordinance located.

  POTW availability distance threshold: 200 feet (POTW may be considered unavailable only when located more than 200 feet from the proposed building)

  “no psds shall be installed, repaired, or rehabilitated where a publicly owned treatment works (potw) is available or where a local ordinance requires connection to a potw.”

Still unanswered

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

• Building permit — Whether a building permit is required for new construction inside Inwood city
• Owner-builder exemption — Whether an owner-builder exemption applies to permits in Inwood city
• Building code adopted — Which building code Inwood city adopts for construction inside its limits
• Inspections — Whether Inwood city requires building inspections for new construction
• Certificate of occupancy — Whether a certificate of occupancy is required for new dwellings inside Inwood city

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.