Montgomery County, Iowa
Red Oak is a city in Montgomery County, Iowa. Red Oak adopts its own zoning, so inside its limits Red Oak’s rules apply, not the county’s. 14 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the Montgomery County page.
Erection, construction, alteration, enlargement, extension, raising, demolition or moving of buildings or structures inside Red Oak city
“no person shall proceed with the erection, construction, conversion, alteration, enlargement, extension, raising or demolition or moving of any building or structure or of any portion thereof without first having received a building permit from the city administrator.”
New construction, additions and modifications of structures inside Red Oak city
“except as hereinafter added, deleted, modified or amended, there is hereby adopted the following building codes as well as any amendments adopted to these codes heretofore by the state of iowa: 1. international building code, 2015 edition 2. international residential code, 2015 edition”
Land inside Red Oak city limits (Montgomery County, Iowa), under the city zoning ordinance
“this chapter shall be known and may be cited as the zoning ordinance of red oak, iowa.”
Land inside Red Oak city limits
“the city is divided into districts which shall be designated as follows”
Single-family and two-family dwellings in the R-1 residential district inside Red Oak city
minimum outside width: >= 20 feet · minimum outside length: >= 20 feet
“c. minimum outside dimensions of 20 feet in width by 20 feet in length.”
Dwellings and institutional uses in the A-1 limited agricultural district inside Red Oak city
minimum lot area: >= 3 acres (dwellings and institutional uses; other uses no minimum) · minimum lot width: >= 200 feet (dwellings and institutional uses)
“a. dwellings and institutional uses: area 3 acres width 200 feet”
“a. dwellings: area 9,600 square feet width 80 feet b. other uses: no minimum.”
Principal buildings in the R-1 residential district inside Red Oak city
front yard: 30 feet · rear yard: 35 feet · side yard: 10 feet · street-side yard, corner lot: 25 feet
“front 30 feet rear 35 feet side 10 feet street side, corner lot 25 feet”
“front 40 feet rear 30 feet side 15 feet street side, corner lot 30 feet”
Principal buildings in the A-1 limited agricultural district inside Red Oak city
maximum height: <= 35 feet (may increase to 50 feet with added yards) · maximum stories: <= 2.5 stories
“maximum height in the a-1 district shall be two and onehalf stories or 35 feet.”
“maximum height in the r-l district shall be two and onehalf stories or 35 feet. the height may be increased to a maximum of 50 feet, provided the front and side yards are each increased one foot for every foot of height over 35 feet.”
Plats and re-plats of subdivisions in Red Oak city, and land adjacent to the city as the code states
“all plans, plats, or re-plats of subdivisions or re-subdivisions of land in the city or adjacent thereto, laid out in lots or plats”
Improved parking surfaces in residential districts inside Red Oak city
maximum share of front yard covered by improved parking surface: <= 50 percent (residential districts)
“no improved parking surface shall cover more than 50 percent of the front yard in any residential district.”
Building permit applications inside Red Oak city
“every application for a building permit shall be made to the city administrator in writing, and shall be accompanied by a detailed set of plans in duplicate”
We looked and could not find an official answer yet. Silence is not permission; ask Red Oak or Montgomery 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 Red Oak publishes no rule on the point, not that none exists. Montgomery County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Red Oak means bringing your own water and power. The kit we’d start with:
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