Bannock County, ID Building Setbacks & Zoning: Structure Height Limits (2026)

Bannock County Code Section 17.20.070's building bulk and placement table governs the Residential Suburban (RS) zoning district, the base residential district applied across most unincorporated Bannock County subdivisions outside city limits and areas of city impact. For a single-family residence, the table sets a minimum one-acre lot, setbacks of thirty feet from a local road right-of-way, fifty feet from an arterial or collector right-of-way, twenty feet at the rear yard, and ten feet at the side yard, with a maximum structure height of thirty-five feet.

A two-family residence follows the same setbacks and thirty-five-foot height cap on a smaller lot. Residential accessory structures share the thirty-five-foot maximum, a figure Section 17.52.040(D)(4) confirms by directing accessory building height to 'the district bulk and placement tables,' meaning a shed or detached garage in the RS district is held to the same thirty-five-foot ceiling as the house itself. Non-residential buildings in the RS district carry no listed maximum height, while farm animal structures are capped at fifteen feet. A footnote to the table requires every structure to sit at least one hundred feet from any stream or riparian area, with a narrow exception for approved culverts.

Larger lots than the table minimum may still be required by the health department where a well or septic system is used, and the planning and development council decides conditional uses on a case-by-case basis. These are baseline standards; a developer proposing a taller structure must seek relief through the variance process in Chapter 17.56.