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

Caldwell regulates structure height through the bulk and dimensional standards of its zoning code (Chapter 10), with maximum heights set by district. A specific figure the code states is for accessory buildings: a detached accessory building, structure, or use shall not exceed twenty-two feet (22') in height in the R-1, R-2, and R-3 districts, and shall not exceed thirty-three feet (33') in height in the RS-1 and RS-2 districts. Maximum heights for principal residential buildings are likewise set in the district dimensional tables (Article 5, Section 10-05-04) and differ from one district to another, so there is no single citywide cap. Height is generally measured per the zoning and building code definitions (for example, to the mean roof height or to the highest point depending on roof type), and features like chimneys or antennas may be treated as exceptions. Height limits work together with setbacks and lot coverage to control building bulk. Because the precise principal-structure maximum depends on your district and the 2025 code reorganization renumbered parts of Chapter 10, confirm the current maximum height for your zone and structure type with the city's dimensional standards table and the Planning and Zoning Division before designing. Exceeding the height limit requires a variance approved through a public hearing.