Zoning, building permits and septic rules in Rockwell, Iowa

Rockwell’s own rules

• Building permitRequired

  New buildings and structures, and changes of use or structural alterations, inside Rockwell city limits. The permit is a zoning permit issued by the zoning administrative officer; the ordinance requires it before occupancy or use.

  • The permit must state that the building and use comply with the zoning ordinance and the city's building and health ordinances.
  • Temporary buildings and structures are included in the requirement.
  • The ordinance does not name a separate building permit; the city's building permit application form was not opened and is not cited here.

  “no land shall be occupied or used, and no building or structure, including temporary buildings and structures, hereafter erected or structurally altered shall be occupied or used in whole or in part for any purpose whatsoever, until a permit is issued by the zoning administrative officer”

• Certificate of occupancyRequired

  Occupancy or use of a new or altered building or structure inside Rockwell city limits. The ordinance calls this a zoning permit, not a certificate of occupancy.

  • Occupancy requires a permit issued by the zoning administrative officer stating compliance with the zoning ordinance and the city's building and health ordinances.
  • No certificate of occupancy by that name is stated in the portion of the ordinance read.

  “no land shall be occupied or used, and no building or structure, including temporary buildings and structures, hereafter erected or structurally altered shall be occupied or used in whole or in part for any purpose whatsoever, until a permit is issued by the zoning administrative officer”

• Local zoningPresent (with conditions)

  All land inside the corporate limits of Rockwell city, Iowa (Cerro Gordo County). Rockwell city adopts and administers its own zoning ordinance.

  • The ordinance states it is adopted under chapter 414 of the Code of Iowa.
  • Land outside the corporate limits (unincorporated Cerro Gordo County) is not covered by this ordinance; this claim does not describe county rules.

  “in accordance with the provisions of chapter 414 of the code of iowa and amendatory acts thereto, this ordinance is adopted by the city of rockwell, iowa, governing the zoning of all lands within the corporate limits of the city.”

• Zoning districtsPublished

  Zoning districts for land inside Rockwell city limits: Agricultural (AG), Residential Low-Density (R-LD), Residential High Density (R-HD), Downtown Commercial (DC), Arterial Commercial (AC), Industrial (I), and the mobile home park district described in the ordinance

  • The zoning map is referenced in section 3.2 and was not opened.
  • Overlay districts are defined in article 2.

  “article 4 agricultural (ag) district 42 4.1 intent 42 4.2 principal permitted uses 42 4.3 accessory permitted uses 42 4.4 conditional uses 43 4.5 bulk requirements 44 article 5 residential low-density (r-ld) district 45”

• Minimum lot sizeDistrict specific (with conditions)

  Lots in the Agricultural (AG) district inside Rockwell city limits

  • Bulk requirements are subject to modifications contained in article 10 (not fully read).
  • The AG district is intended for agriculture as the principal use of land.

  minimum lot area: >= 6000 square feet (subject to article 10 modifications) · minimum lot width: >= 50 feet (subject to article 10 modifications)

  “4.5 bulk requirements the following minimum requirements shall be observed subject to modifications contained in article 10. minimum lot area minimum lot width minimum front yard minimum side yard minimum rear yard 6,000 square feet 50 feet 25 feet 5 feet 25 feet 44 maximum height (lesser of) 2½ stories or 40 feet”

  One more reviewed finding on this topic

  • District specific (with conditions) — Single-family lots in the Residential Low-Density (R-LD) district inside Rockwell city limits

    “5.5 bulk requirements the following minimum requirements shall be observed subject to modifications contained in article 10. minimum lot area minimum lot width minimum front yard minimum side yard minimum rear yard 6,000 square feet 50 feet 25 feet 5 feet 25 feet 47 maximum height (lesser of) 2½ stories or 40 feet”

• SetbacksDistrict specific (with conditions)

  Single-family lots in the Residential Low-Density (R-LD) district inside Rockwell city limits

  • Yard requirements are subject to modifications in article 10 section 10.6 (not fully read).
  • Attached ADUs follow principal-building setbacks (section 10.11).

  minimum front yard: >= 25 feet · minimum side yard: >= 5 feet · minimum rear yard: >= 25 feet

  “5.5 bulk requirements the following minimum requirements shall be observed subject to modifications contained in article 10. minimum lot area minimum lot width minimum front yard minimum side yard minimum rear yard 6,000 square feet 50 feet 25 feet 5 feet 25 feet 47 maximum height (lesser of) 2½ stories or 40 feet”

  One more reviewed finding on this topic

  • District specific (with conditions) — Lots in the Agricultural (AG) district inside Rockwell city limits

    “4.5 bulk requirements the following minimum requirements shall be observed subject to modifications contained in article 10. minimum lot area minimum lot width minimum front yard minimum side yard minimum rear yard 6,000 square feet 50 feet 25 feet 5 feet 25 feet 44 maximum height (lesser of) 2½ stories or 40 feet”

• Building heightDistrict specific (with conditions)

  Principal buildings in the Agricultural (AG) district inside Rockwell city limits

  • Height is the lesser of 2½ stories or 40 feet.
  • Height exceptions are in section 10.7 (not read).

  maximum height: <= 40 feet (lesser of 2½ stories or 40 feet) · maximum height: <= 2.5 stories (lesser of 2½ stories or 40 feet)

  “4.5 bulk requirements the following minimum requirements shall be observed subject to modifications contained in article 10. minimum lot area minimum lot width minimum front yard minimum side yard minimum rear yard 6,000 square feet 50 feet 25 feet 5 feet 25 feet 44 maximum height (lesser of) 2½ stories or 40 feet”

  One more reviewed finding on this topic

  • District specific (with conditions) — Principal buildings in the Residential Low-Density (R-LD) district inside Rockwell city limits

    “5.5 bulk requirements the following minimum requirements shall be observed subject to modifications contained in article 10. minimum lot area minimum lot width minimum front yard minimum side yard minimum rear yard 6,000 square feet 50 feet 25 feet 5 feet 25 feet 47 maximum height (lesser of) 2½ stories or 40 feet”

• Living in an RVTemporary only (with conditions)

  Recreational vehicle used as living quarters on a lot inside Rockwell city limits

  • A recreational vehicle may not be used as a permanent dwelling or living quarters.
  • Temporary living quarters are limited to a maximum of two (2) weeks per year on a lot.
  • Parking of an RV in the front yard of a residential property may be temporarily allowed for two (2) weeks, provided it is parked on an improved surface leading to a garage or designated parking area (section 12.4).

  temporary living quarters maximum: <= 2 weeks per year on a lot (also allowed as a temporary construction building as allowed in section 10.13)

  “no recreational vehicle shall be used as a permanent dwelling or living quarters. however, a recreational vehicle may be used as temporary living quarters up to a maximum of two (2) weeks per year on a lot or as a temporary construction building as allowed above.”

• Camping on your landLimited

  Temporary camping in a recreational vehicle on a lot inside Rockwell city limits

  • Temporary living quarters in an RV are limited to two (2) weeks per year on a lot.
  • Guest RV stays of up to seven (7) days in a calendar quarter are described in the mobile home park section and require a special temporary permit; that section was not verified in full.

  temporary RV living quarters maximum: <= 2 weeks per year (on a lot)

  “however, a recreational vehicle may be used as temporary living quarters up to a maximum of two (2) weeks per year on a lot or as a temporary construction building as allowed above.”

• Tiny homesLimited

  Tiny homes inside Rockwell city limits. Tiny houses on a permanent foundation are not separately addressed in the portion read; tiny homes on wheels are treated as recreational vehicles.

  • Tiny houses are permitted in a mobile home park, subject to the zoning ordinance requirements.
  • A tiny home on wheels (THOW), registered as a recreational vehicle, may be parked temporarily in a residential front yard for two (2) weeks on an improved surface.
  • The ordinance also states that a recreational vehicle may not be used as a permanent dwelling.

  “tiny houses are permitted in a mobile home park and subject to the requirements as provided within this ordinance.”

• Manufactured homesLimited

  Factory-built or mobile homes inside Rockwell city limits

  • A factory-built/mobile home may be parked or stored only in a mobile home park or mobile home sales area.
  • A factory-built/mobile home may not be occupied, temporarily or permanently, unless it is in a mobile home park, as authorized under the ordinance.
  • The ordinance states an emergency exception that was not read in full.
  • A single-family dwelling includes a manufactured home as defined in the ordinance, so a manufactured home on a single-family lot is treated as a single-family dwelling.

  “a "factory-built/mobile home" shall be parked or stored only in a mobile home park or mobile home sales area.”

• Accessory dwellingsLimited

  Accessory dwelling unit on a lot in the Residential Low-Density (R-LD) district inside Rockwell city limits

  • One accessory dwelling unit per lot.
  • An accessory dwelling unit is allowed only if a single-family home is constructed on the lot.
  • Maximum size: the residential space of an ADU may be no greater than 1,500 square feet or 50% of the principal dwelling area, whichever is greater (section 10.11).
  • An attached ADU must meet the same setbacks as the principal building; a detached ADU must meet the requirements of an accessory building.

  accessory dwelling units per lot: <= 1 per lot (requires a single-family home on the lot) · ADU maximum residential space: <= 1500 square feet (or 50% of principal dwelling area, whichever is greater)

  “6. accessory dwelling units, maximum one (1) per lot, provided that a single-family home is constructed on the lot.”

  One more reviewed finding on this topic

  • Limited — Accessory dwelling unit on a lot in the Agricultural (AG) district inside Rockwell city limits

    “6. accessory dwelling units, maximum one (1) per lot.”

• Permit processPartial

  Zoning permit process for construction and occupancy inside Rockwell city limits

  • The zoning administrative officer issues the zoning permit.
  • Building permit application procedure and inspection steps are not described in the portion read.

  “no land shall be occupied or used, and no building or structure, including temporary buildings and structures, hereafter erected or structurally altered shall be occupied or used in whole or in part for any purpose whatsoever, until a permit is issued by the zoning administrative officer”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Rockwell or Cerro Gordo County directly.

• Owner-builder exemption — Owner-builder exemption from permits inside Rockwell city limits
• Building code adopted — Building code edition(s) adopted by Rockwell city for construction inside city limits
• Inspections — Building inspections for construction inside Rockwell city limits
• Minimum dwelling size — Minimum floor area for a dwelling inside Rockwell city limits
• Lot coverage — Maximum lot coverage by buildings inside Rockwell city limits

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.