Building Setbacks & Zoning in Butler County, OH (2026)

3 rules for unincorporated Butler County, Ohio.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Butler County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Setback Rules

There is no single county setback. In county-zoned townships, R-District minimum yards range from 25–35-foot front, 8–20-foot side, and 30–45-foot rear depending on district. Cities and self-zoning townships set their own setbacks.

Building Setback Requirements in Butler County

Some Restrictions

Butler County Rural Zoning Resolution 8.0605

Standalone Lots... the following area requirements apply: R-1 ... Front Yard Depth 35 feet, Side Yard Width One Side 15 feet, Rear Yard Depth 45 feet. R-2 ... Front Yard 30 feet, Side 8 feet, Rear 40 feet. R-3 ... Front 25 feet, Side 8 feet, Rear 30 feet.

Full ordinance details →Official source ↗

Structure Height Limits

In county-zoned townships, no principal residence may exceed 2½ stories or 30 feet, and accessory structures may not exceed 1½ stories or 20 feet. R-4 multi-family reaches 3 stories or 40 feet. Cities set their own limits.

Building Height Limits in Butler County

Some Restrictions

Butler County Rural Zoning Resolution 8.0601

Maximum Height. No principal structure or use shall exceed two and one half (2½) stories or thirty (30) feet in height (except in the R-4 District), and no accessory structure shall exceed one and one half (1½) stories or twenty (20) feet in height, except as provided in Section 24.3.

Full ordinance details →Official source ↗

Lot Coverage Limits

The county resolution controls buildable area through minimum lot size and density rather than a fixed coverage percentage: R-1 needs 20,000 sq ft, down to 6,500 sq ft in R-4. Cities and self-zoning townships set their own coverage rules.

Lot Coverage and Minimum Lot Size in Butler County

Some Restrictions

Butler County Rural Zoning Resolution 8.0605

Standalone Lots... Single-Family Residential Dwellings: R-1 20,000 sq ft; R-1A 15,000 sq ft; R-2 9,000 sq ft; R-3 7,000 sq ft; R-4 6,500 sq ft.

Full ordinance details →Official source ↗

All Butler County ordinances

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