Zoning, building permits and septic rules in Garwin, Iowa

Garwin’s own rules

• InspectionsLimited

  Inspection of building-sewer connections to the public sanitary sewer in Garwin city; no general building inspection rule was found.

  • Limited to the sanitary sewer connection, not to building construction generally.
  • Connections must be inspected before being covered, under Chapter 96.

  “96.08 inspection required. all connections with the sanitary sewer system before being covered shall be inspected and approved, in writing, by the superintendent.”

• Local zoningPresent (with conditions)

  Land inside Garwin city limits: Garwin city's own zoning ordinance (Ordinance No. 126, 'City of Garwin, Iowa, Zoning Ordinance') regulates use, construction and dimensions of buildings in the city.

  • Ordinance No. 126 and Ordinance No. 127 (official zoning map) were adopted February 6, 1989 and are saved from repeal per the city's own code note; the zoning text is not reproduced in the Chapter 121 code PDF and is available as separate Section PDFs on garwiniowa.gov.
  • Several amendments are listed in the Chapter 121 editor's note (e.g., height and bulk regulations, rezoning from RS to LI, vacations of streets/alleys), so district limits must be read with the amendments.
  • The city's zoning page says it is for informational purposes only and that the official code should be requested from Garwin City Hall; a May 4, 2026 consolidated-code notice seen in a third-party registry was not verified.

  “ordinance no. 126 entitled “city of garwin, iowa, zoning ordinance” and ordinance no. 127, the official zoning map ordinance, both adopted february 6, 1989, and amendments thereto have not been included as a part of the code of ordinances, but have been specifically saved from repeal and are in full force and effect.”

• Zoning districtsPublished (with conditions)

  Zoning districts inside Garwin city limits as set by Garwin city's zoning ordinance Section 1.07.

  • Districts listed in Section 1.07.01: AG, CN, RS, RM, MH, CM, LI, HI.
  • The official zoning map is Ordinance No. 127, which is not reproduced in the code PDF; the district map itself was not retrieved.

  “ag agricultural district cn conservation district rs residential single-family district rm residential multi-family district mh mobile home district cm commercial district li light industrial district hi heavy industrial district”

• Minimum lot sizeSpecified

  Single-family residential (RS) district inside Garwin city limits: minimum lot area for permitted residential uses.

  • The RS bulk table lists two variants labeled '6 rs' and '12 rs'; the text extraction is garbled, so the pairing of lot area with each label is inferred from column order (6,000 sq ft and 60 ft width for the first variant; 12,000 sq ft and 100 ft width for the second).
  • Table values for front-yard and height columns are marked amended by ordinance #184; the lot-area figures carry no amendment marker in the extracted text.

  minimum lot area (variant labeled 6 rs): >= 6000 sq ft (variant labeled 12 rs requires 12,000 sq ft) · minimum lot area (variant labeled 12 rs): >= 12000 sq ft (variant labeled 6 rs requires 6,000 sq ft) · minimum lot width (variant labeled 6 rs): >= 60 feet · minimum lot width (variant labeled 12 rs): >= 100 feet

  “min. lot area (sq. ft.) min. lot width (feet) min. front yard (feet) min. side yard (feet) min. rear yard (feet) max. height (feet) 6 rs 12 rs 6,000 12,000 60 100 20 25 6 10 20 25 20* 20* (*amended by ordinance #184)”

  One more reviewed finding on this topic

  • Specified — Agricultural (AG) district inside Garwin city limits: minimum lot area for dwellings.

    “1. minimum lot area dwellings: 2 acres other uses: 5 acres”

• SetbacksSpecified

  Single-family residential (RS) district inside Garwin city limits: front, side and rear yard minimums for permitted residential uses.

  • Two RS variants labeled '6 rs' and '12 rs': front yard 20 ft / 25 ft; side yard 6 ft / 10 ft; rear yard 20 ft / 25 ft (pairing inferred from column order in the garbled extraction).
  • Yard figures are stated as minimums in the table; no measurement method was quoted.

  minimum front yard (variant 6 rs): >= 20 feet (variant 12 rs: 25 feet) · minimum side yard (variant 6 rs): >= 6 feet (variant 12 rs: 10 feet) · minimum rear yard (variant 6 rs): >= 20 feet (variant 12 rs: 25 feet)

  “min. lot area (sq. ft.) min. lot width (feet) min. front yard (feet) min. side yard (feet) min. rear yard (feet) max. height (feet) 6 rs 12 rs 6,000 12,000 60 100 20 25 6 10 20 25 20* 20* (*amended by ordinance #184)”

  One more reviewed finding on this topic

  • Specified — Agricultural (AG) district inside Garwin city limits: front, side and rear yard minimums for dwellings.

    “3. minimum front yard dwellings: 50 feet other uses: 50 feet 4. minimum side yard dwellings: 15 feet 36 other uses: 25 feet 5. minimum rear yard dwellings: 50 feet other uses: 50 feet”

• Building heightSpecified

  Agricultural (AG) district inside Garwin city limits: maximum building height.

  • Height limit amended by ordinance no. 130 (adopted June 4, 1990 per the Chapter 121 amendment list).

  maximum height: <= 15 feet

  “6. maximum height - 15 feet (amended by ordinance no. 130)”

  One more reviewed finding on this topic

  • Specified — Single-family residential (RS) district inside Garwin city limits: maximum building height.

    “min. lot area (sq. ft.) min. lot width (feet) min. front yard (feet) min. side yard (feet) min. rear yard (feet) max. height (feet) 6 rs 12 rs 6,000 12,000 60 100 20 25 6 10 20 25 20* 20* (*amended by ordinance #184)”

• Mandatory utility hookupConditional

  New home inside Garwin city limits that can reach the city's public sanitary sewer: connection is made under a city sewer permit.

  • Chapter 96 does not state a mandatory-connection rule or a distance-from-sewer threshold in the opened text; a mandate was not found.
  • Connection must be made by a city-approved plumber; permit issued by the superintendent; connection completed within 30 days of permit approval unless extended.
  • Connection requires a surety bond of $5,000 or a $5,000 cash deposit.

  connection completion deadline: <= 30 days (after permit approval; extension possible for conditions beyond owner's control)

  “any person desiring to make a connection with the sewer system shall first file with the clerk an application therefore”

• Building in a floodplainLimited

  Land in the CN conservation district and floodway fringe inside Garwin city limits.

  • The floodway fringe is regulated by a separate city ordinance that was not located or opened.
  • The CN district permits undeveloped land, public parks and publicly owned buildings only, per Section 1.07.03(b).

  “it is noted, however, that there is a floodway fringe created by separate city ordinance by which this specific area is further regulated.”

• Permit feesPublished (with conditions)

  Sewer building-connection permit fee in Garwin city. Building permit fees were not found.

  • The fee covers issuing the permit and supervising, regulating and inspecting the work.
  • Industrial connections pay a different fee ($500.00).

  sewer connection permit fee, residential and commercial: 50 USD (industrial: $500.00)

  “4. permit fee. the person who makes the application shall pay the following fee to the clerk to cover the cost of issuing the permit and supervising, regulating, and inspecting the work: a. residential and commercial. $50.00 b. industrial. $500.00”

• Permit processPartial

  Process for a sewer building-connection permit in Garwin city. General building permit process not found.

  • Application is filed with the clerk on city forms stating the location and intended use; the superintendent may require plans.
  • Connection by a city-approved plumber; $5,000 bond or cash deposit; completion within 30 days of approval; inspection before covering.

  “96.02 plumber required. any connection to a public sewer shall be made by a plumber approved by the city.”

Rules another office applies inside Garwin

Garwin 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)

  Private on-site wastewater (septic) systems on land inside Garwin city limits, administered by the Tama County Board of Health through the county environmental health program; applies inside Garwin city only where a septic system is used rather than the city sewer.

  • Tama County Ordinance 5.6 adopts Iowa Administrative Code 567 Chapter 69 by reference.
  • Garwin city has a public sanitary sewer system (Chapter 96); whether septic is available for a given parcel depending on sewer availability was not verified.
  • Garwin is placed in Tama County by the city's own site listing Tama County as a site of interest; the county's septic page does not name Garwin.

  “section 2. enforcement. this ordinance shall be enforced by the tama county board of health as required in the code of iowa 455b.172(4). the board of health or its agent shall be responsible for issuance of required permits.”

• Septic permitRequired

  Installing or altering a private septic system on land inside Garwin city limits, under the county board of health and the state rule adopted by Tama County.

  • Permit is issued by the administrative authority (Tama County Board of Health under Ordinance 5.6) before construction.
  • Only installation or alteration (as described in 69.1(3)(b)) triggers the permit; repairs that do not change treatment or disposal are not alterations.
  • Fees are set by Board of Health policy; the fee amount was not published in the opened text.

  “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 septic systems on land inside Garwin city limits; final at-location inspection by the administrative authority (Tama County Board of Health).

  • A final as-built drawing is made as part of the final inspection and kept on file with the construction permit.
  • The separate time-of-transfer (TOT) inspection program administered by Tama County was not analyzed; its trigger was not quoted from the ordinance.

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

Still unanswered

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

• Building permit — General building permit for new construction inside Garwin city limits (not the sewer connection permit).
• Owner-builder exemption — Owner-builder exemption for building inside Garwin city.
• Building code adopted — Whether Garwin city adopts a building code for construction inside city limits.
• Certificate of occupancy — Certificate of occupancy for new dwellings in Garwin city.
• Minimum dwelling size — Minimum dwelling floor area inside Garwin 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.