Jasper County, Iowa
Colfax is a city in Jasper County, Iowa. Colfax adopts its own zoning, so inside its limits Colfax’s rules apply, not the county’s. 12 rules below are quoted from official sources and independently re-checked, most recently on November 1, 2026. Rules for unincorporated land are on the Jasper County page.
Erecting, constructing, enlarging, moving, removing, converting or demolishing any building or structure inside Colfax city limits
“no building or structure shall be erected, constructed, enlarged, moved, removed, converted, or demolished unless a separate permit for each building or structure has first been obtained from the zoning administrator. the owner of the property must apply for the zoning/building permit.”
Construction, alteration and repair of buildings inside Colfax city limits
“155.02 adoption of building codes. the following codes are hereby adopted as, and constitute, the building codes of the city of colfax, iowa, to regulate the erection, construction, enlargement, alteration, repair, moving,”
Land inside the limits of Colfax city, Iowa; the city's own zoning ordinance (Code chapter 165) governs use and bulk rules there.
“a zoning administrator designated by the city council shall administer and enforce this chapter.”
Zoning districts of Colfax city, Iowa (the official zoning map is adopted by reference)
“these districts are established as identified on the official zoning map which, together with all explanatory matters thereon, is hereby adopted by reference and declared to be part of this chapter.”
Main single-family residential lots in the RS residential single-family district inside Colfax city limits (table rows 5 rs and 10 rs)
minimum lot area, 5 rs row: >= 5000 square feet (applies to existing lots of record at the time of adoption) · minimum lot area, 10 rs row: >= 10000 square feet
“5 rs* 5,000 40 20 6 20 2½ stories or 35 feet 10 rs 10,000 75 25 8 35 2½ stories or 35 feet *applies to existing lots of record at the time of adoption of this chapter.”
Main single-family residential lots in the RS residential single-family district inside Colfax city limits (table rows 5 rs and 10 rs)
minimum front yard, 5 rs row: >= 20 feet (applies to existing lots of record at the time of adoption) · minimum front yard, 10 rs row: >= 25 feet · minimum side yard, 5 rs row: >= 6 feet (applies to existing lots of record at the time of adoption) · minimum side yard, 10 rs row: >= 8 feet · minimum rear yard, 5 rs row: >= 20 feet (applies to existing lots of record at the time of adoption) · minimum rear yard, 10 rs row: >= 35 feet
“5 rs* 5,000 40 20 6 20 2½ stories or 35 feet 10 rs 10,000 75 25 8 35 2½ stories or 35 feet”
Principal buildings in the RS residential single-family district inside Colfax city limits (table rows 5 rs and 10 rs)
maximum height, stories: <= 2.5 stories (lesser of stories or feet) · maximum height: <= 35 feet (lesser of stories or feet)
“6. height limits. chimneys, church steeples, cooling towers, elevator bulkheads, fire towers, monuments, stacks, tank, water towers, or necessary mechanical appurtenances are exempt from height regulations in sections 165.22 through 165.36.”
Non-sewered privies, septic tanks, cesspools and similar disposal facilities inside Colfax city limits
“5. septic tanks. construct or maintain any privy, privy vault, septic tank, cesspool, or other facility intended or used for the disposal of sewage except as provided in these chapters.”
Houses and buildings used for human occupancy inside Colfax city limits that abut a street or right-of-way with a public sanitary or combined sewer
sewer main tap permit fee: 25 USD (for a new main tap, paid to the clerk for issuing the permit) · sewer main tap inspection fee: 75 USD (for inspecting the work) · sewer connection charge for new main taps: 500 USD (paid before permit issuance to reimburse city costs of making sewer service available)
“95.05 sewer connection required. (code of iowa, sec. 364.12[3f]) (iac, 567-69.1[3]) 1. the owners of any houses, buildings, or properties used for human occupancy, employment, recreation or other purposes, situated within the city and abutting on”
Platting and subdividing land inside Colfax city limits
“the subdivider shall at his or her expense provide the subdivision with a complete sanitary sewer system”
Sewer main tap and connection fees only, under Code chapter 96; building and zoning permit fees are not in the code text and are set by council resolution
sewer main tap permit fee: 25 USD (new main tap) · sewer main tap inspection fee: 75 USD (inspecting the work) · sewer connection charge: 500 USD (new main taps)
“96.02 permit fee and connection charge for new main taps. before any permit is issued, the person who makes the application shall pay $25.00 to the clerk to cover the cost of issuing the permit for a new main tap, supervising and regulating, and a $75.00 fee for inspecting the work. in addition, there shall be a connection charge in the amount of $500.00 paid before issuance of a permit to reimburse the city for costs borne by the city”
Zoning/building permit application process inside Colfax city limits
“zoning/building permits shall be applied for with the city clerk and shall be approved by the zoning administrator and shall expire two years after the date of issuance if work is begun within one year of issuance or after one year if no substantial beginning of construction has occurred.”
We looked and could not find an official answer yet. Silence is not permission; ask Colfax or Jasper County directly.
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 Colfax publishes no rule on the point, not that none exists. Jasper County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Colfax means bringing your own water and power. The kit we’d start with:
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