Zoning, building permits and septic rules in Nevada, Iowa
Nevada is a city in Story County, Iowa. Nevada adopts its own zoning, so inside its limits Nevada’s rules apply, not the county’s. 4 rules below are quoted from official sources and independently re-checked, most recently on October 23, 2026. Rules for unincorporated land are on the Story County page.
Answers from the rulebook for Nevada
Nevada’s own rules
Building code adoptedAdopted
Construction, repair, moving and demolition of buildings inside Nevada city limits
Adopts the Iowa State Building Code, promulgated under Chapter 103A of the Code of Iowa, by reference, including the one- and two-family dwelling code.
Section 156.04 cites ord. 913 (Feb. 08 supp.) as the adopting ordinance; later amendments to the state code were not checked.
“the iowa state building code, promulgated pursuant to chapter 103a of the code of iowa, including the one- and two-family dwelling code, is hereby adopted by reference.”
Local zoningPresent (with conditions)
All land inside the corporate limits of Nevada city, Iowa, under the City of Nevada zoning ordinance (Code of Ordinances Chapter 165)
Section 165.02 applies the zoning ordinance to all property within city limits and also by mutual agreement with Story County, so the agreement terms were not reviewed in this pass.
Code is hosted by American Legal Publishing; the code overview page states it is Ordinance No. 904 adopted October 23, 2006, with later supplements, so amendments after the supplement cited were not checked.
Use-by-right and conditional-use rules for each district were not opened (see zoning-districts and dimensional claims).
“the provisions of this chapter are applicable to all property within the corporate limits of the city of nevada as provided by chapter 414, code of iowa, and as provided by mutual agreements with story county, iowa.”
Zoning districtsPublished
Zoning districts for land inside Nevada city limits
Table of contents lists the district regulations, overlay districts and mixed-use, railroad, PUD and traditional-neighborhood districts; the district list and map were not opened.
Dimensional figures for each district remain unverified.
“165.09 zoning district regulations. 165.10 special and overlay districts generally. 165.11 mu mixed use district.”
Manufactured homesLimited
Manufactured home dwellings installed as a residence on a residential site inside Nevada city limits
Definition in section 165.07 states that for the purpose of any of these regulations, manufactured homes are considered the same as single-family detached dwellings.
Definition also requires the home to meet additional criteria, including roof material that is or simulates asphalt or wood shingles, tile or rock, an exterior material comparable to residences on the site, and permanent utility connections (criteria d through f were only partly read).
Mobile homes are not 'manufactured home dwellings' unless converted to real property and taxed as site-built under Code of Iowa section 435.26.
Which zoning districts allow manufactured home dwellings was not verified (165.09 not opened).
minimum floor area: >= 900 square feet · minimum exterior width: >= 24 feet · minimum roof pitch: >= 2.5 inches of vertical rise per 12 inches of horizontal run
“a manufactured home dwelling shall meet the following additional criteria: a. the home shall have at least 900 square feet of floor area; b. the home shall have an exterior width of at least 24 feet; c. the roof shall be pitched with a minimum vertical rise of 2.5 inches for each 12 inches of horizontal run.”
Still unanswered
We looked and could not find an official answer yet. Silence is not permission; ask Nevada or Story County directly.
Owner-builder exemption — Owner-builder construction of a home inside Nevada city limits
Minimum dwelling size — Main single-family residential district inside Nevada city limits (district not identified in this pass)
Minimum lot size — Main single-family residential district inside Nevada city limits (district not identified in this pass)
Setbacks — Main single-family residential district inside Nevada city limits (district not identified in this pass)
Lot coverage — Main single-family residential district inside Nevada city limits (district not identified in this pass)
18 more unanswered
Building height
Living in an RV
Camping on your land
Tiny homes
Accessory dwellings
Who permits septic
Septic permit
Septic inspection
Off-grid sanitation
Well permit
Mandatory utility hookup
Agricultural exemption
Subdividing land
Driveway access
Building in a floodplain
Short-term rentals
Permit fees
Permit process
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 Nevada publishes no rule on the point, not that none exists. Story County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Nevada means bringing your own water and power. The kit we’d start with:
