Butler County, Iowa
Clarksville is a city in Butler County, Iowa. Clarksville adopts its own zoning, so inside its limits Clarksville’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 Butler County page.
Erection, reconstruction or alteration of buildings and building footprints inside Clarksville city
“a. no building footprint, area, or size shall hereafter be altered or improved unless a building permit, provided by the city clerk, approved by the city code enforcement officer, has been approved for each erection, reconstruction, or alteration.”
Alterations and improvements for which a city building permit is issued inside Clarksville city
“applicant grants to the city building official the right to enter onto applicant’s property to inspect the improvement or alteration to determine its compliance with the city code.”
Buildings and uses in all zoning districts inside Clarksville city
“no change in the use or occupancy of land, nor any change in use or occupancy in an existing building shall be made, nor shall any new building be occupied for any purpose or use until a certificate of occupancy has been issued by the building official.”
All land inside Clarksville city limits, under the city's own Restricted Residence District (R-1) zoning in code chapter 155
“all land that is hereafter annexed to the city of clarksville shall be automatically classified as being in an r-1 restricted residence district until such classification is changed by amendment of this chapter, as provided herein.”
Zoning district classifications in Clarksville city
“said map delineates various areas of the city into the following classifications: r-1 - restricted residence district n-r - nonresidential district”
Lots using a sub-surface soil absorption septic system inside Clarksville city. This is a septic permit threshold, not a zoning lot minimum.
minimum lot area for subsurface soil absorption septic system: >= 20000 square feet
“98.09 minimum lot area. no permit shall be issued for any on-site wastewater treatment and disposal system employing sub-surface soil absorption facilities where the area of the lot is less than 20,000 square feet.”
Manufactured homes (as defined in code chapter 155) used as a dwelling on land inside Clarksville city
minimum width: >= 22 feet
“a manufactured home shall be a minimum of 22 feet in width and will be considered as a dwelling under the provisions of this chapter.”
“mobile homes to be used for dwelling purposes shall be placed only in an approved mobile home park.”
On-site wastewater disposal (septic or other private sewage facility) on land inside Clarksville city
“98.01 when prohibited. except as otherwise provided in this chapter, it is unlawful to construct or maintain any on-site wastewater treatment and disposal system or other facility intended or used for the disposal of sewage.”
Houses, buildings and properties used for human occupancy that abut a street, alley or right-of-way with a public sanitary or combined sewer inside Clarksville city
sewer connection compliance period: <= 60 days (after date of official notice from the city)
“95.05 sewer connection required. the owners of any houses, buildings, or properties used for human occupancy, employment, recreation or other purposes, situated within the city and abutting on any street, alley or right-of-way in which there is now located, or may in the future be located, a public sanitary or combined sewer, are hereby required to install, at such owner’s expense, suitable toilet facilities therein and a building sewer connecting such facilities directly with the proper public sewer”
Division of land into lots inside Clarksville city
“chapter 165 subdivision regulations 165.01 definitions 165.02 preliminary plat required”
Building permit application process inside Clarksville city
“said permit shall be applied for in writing on a properly completed application form, provided by the city clerk, that is accompanied by plans and specifications sufficient to determine compliance with the applicable ordinances of the city.”
We looked and could not find an official answer yet. Silence is not permission; ask Clarksville or Butler 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 Clarksville publishes no rule on the point, not that none exists. Butler County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Clarksville means bringing your own water and power. The kit we’d start with:
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