Accessory dwelling unit cost — Meridian, 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
Total costs are influenced by the complexity of your site, the square footage of the unit, and the specific utility upgrades needed to support a new home. Choosing between a prefab unit and a custom build also changes your bottom line. We provide exact pricing confirmed free on the call.
Frequently asked in Meridian
Are prefab ADUs a good choice for Meridian?
What are homes with mother-in-law suites like in Meridian?
What ADU services are available in Meridian?
What's the cost for an ADU permit in Meridian?
How do I get an ADU estimate in Meridian?
What makes a good ADU unit in Meridian?
What does 'accessory dwelling unit' mean in Meridian?
Also serving nearby: Nampa · Boise City · Bend · Spokane Valley · Spokane
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Meridian — population 134,801; about 3,657 residents per square mile across 36.9 sq mi. ZIP codes covered include 83642, 83646, 83680.
Neighborhoods served in Meridian: Southwest Meridian, Northwest Meridian, Southeast Meridian, Downtown Meridian, The Village — and every surrounding area.
Areas we serve
Browse by state, then city.