Boise Council approves zoning code edits, allows up to two tiny homes on wheels per lot with targeted exceptions

The Boise City Council on June 10 approved Zoning Ordinance Amendment COA 25-3, a package of more than 140 technical and policy edits to the city's zoning code that, among other changes, formalizes rules for tiny homes on wheels and directs staff to evaluate expanded accessory dwelling unit options.

The ordinance, introduced by city planning staff and carried by Council President Nash, passed on a roll-call vote after councilmembers debated several specific provisions. The council excluded proposed airport influence-area density changes and removed a figure and text addressing small multifamily building orientation, and it directed staff to allow up to two tiny homes on wheels per lot and to study permitting up to two ADUs per lot, including definitions for junior ADUs.

The amendments are billed by city planning staff as the first 'continuous improvement' round on the new zoning code adopted in December 2023. Diana Dupuy, a city planning staff presenter, told council the package responds to a year of implementation, public inquiries and interdepartmental review: "We had 996 applications...17,000 calls in our first year," Dupuy said, describing edits ranging from definitions and measurement rules to use-specific standards and procedural clarifications. The package adds tiny homes on wheels as an accessory use where ADUs are allowed, initially proposing…