Cost to build accessory dwelling unit — 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
The expense of building an ADU varies based on site preparation, whether you need to run new sewer or electrical lines, and the level of interior customization you choose. Larger custom builds naturally require more materials and labor than simpler conversions. We provide exact pricing confirmed free on the call.
Frequently asked in Meridian
What's the cost for an ADU permit in Meridian?
Are there emergency ADU services in Meridian?
What are prefab ADUs and are they good for Meridian?
What permits are needed for an ADU in Meridian?
Tell me about modular ADUs in Meridian.
What goes into ADU construction cost in Meridian?
How can I get an affordable ADU 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: Southcreek, The Village, North End, Columbia Village, Brookside — and every surrounding area.
Areas we serve
Browse by state, then city.