Affordable adu — Boise City, ID

Last updated: September 24, 2026

What affects the price

Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.

About this service

Creating an affordable ADU means balancing design preferences with construction realities. By choosing a pre-designed model or focusing on a straightforward layout, you can significantly reduce material waste and labor hours. We work with you to prioritize the features that matter most to keep your project efficient. Exact pricing confirmed free on the call.

Frequently asked in Boise City

Also serving nearby: Meridian · Nampa · Bend · Spokane Valley · Spokane

All cities in Idaho →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

Serving all of Boise City — population 235,421; about 2,784 residents per square mile across 84.6 sq mi.

Neighborhoods served in Boise City: North End, The Bench, Collister, Boise River, Downtown Boise — and every surrounding area.