Butler County, Ohio
Trenton is a city in Butler County, Ohio. Trenton adopts its own zoning, so inside its limits Trenton’s rules apply, not the county’s. 6 rules below are quoted from official sources and independently re-checked, most recently on November 12, 2026. Rules for unincorporated land are on the Butler County page.
One- and two-family dwellings inside Trenton city
IRC edition: 2003
“there is hereby adopted by and for the city of trenton, the international residential code for one- and two-family dwellings (irc), being particularly the 2003 edition thereof”
Land inside Trenton city limits (Butler County, OH); the city has its own zoning code (Part Twelve, Planning and Zoning Code, Title Four - Zoning)
“all development in the r-1 zoning district shall be subject to the applicable provisions of chapters 1254 through 1266 and chapter 1280 of this zoning code.”
R-1 low-density single-family residential district, inside Trenton city
conditioned floor area: >= 2200 sq ft (pre-adoption residences with more than 1,600 sq ft)
“(2) conditioned floor area: 2,200 sq. ft. residences constructed before the adoption of this section shall not be considered legally non-conforming based on conditioned floor area provided they contain more than 1,600 square feet of conditioned floor area;”
R-1 low-density single-family residential district, inside Trenton city
lot area: >= 15000 sq ft
“the following minimum requirements shall be observed for all uses within the r-1 low-density single-family residential district: (1) lot area: 15,000 sq. ft.”
R-1 low-density single-family residential district, inside Trenton city
front yard: >= 35 ft · least side yard: >= 8 ft · total side yards: >= 20 ft · rear yard: >= 40 ft
“(4) required front yard: 35 ft.; (5) required side yard-least width: 8 ft. and total combined side widths 20 ft.; (6) required rear yard: 40 ft.”
R-1 low-density single-family residential district, inside Trenton city
maximum height: <= 35 ft
“(e) height regulations. no structure shall exceed 35 feet in height.”
We looked and could not find an official answer yet. Silence is not permission; ask Trenton 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 Trenton 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 Trenton means bringing your own water and power. The kit we’d start with:
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