Historic Preservation in Johnson County, IA (2026)
1 county-level rule, plus city-specific rules for 1 city in Johnson County, Iowa.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Johnson County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Historic-Cultural Monuments
Johnson County's Sensitive Areas Ordinance requires any development site with a historically significant structure or archaeological site to carry a 50-foot protective buffer, and to leave the buffered property undisturbed unless the county approves a mitigation plan.
Johnson County Historic Property Buffer Rule
Some RestrictionsJohnson County UDO § 8:3.5(E)(2)
E. Historic Properties. Areas containing significant information regarding the history or prehistory of the United States of America, the State of Iowa, and/or Johnson County. Historic properties include historically significant structures and significant archaeological sites. 2. Implementation. If significant historic properties are found on site, the applicant shall proceed in accordance wit...
Historic Preservation by City in Johnson County
1 cities in Johnson County have their own historic preservation rules. Each link goes to that city's dedicated page with code citations.
All Johnson County ordinances
See every category we cover for Johnson County: parking, noise, fences, fires, animals, pools, and more.
Johnson County Ordinance Hub →