Premier Construction & Design designs and builds accessory dwelling units and home additions throughout Spokane Valley. Our team manages zoning review, City of Spokane Valley permitting, structural design, and full build-out under one roof. Valley lots are often deep and generous, which makes them well suited to a detached backyard cottage or a garage conversion. Because the Valley sits over the Spokane Valley-Rathdrum Prairie Aquifer, septic, sewer connection, and stormwater questions come up early, and we sort those site and utility details out before design gets locked in. Every project comes with transparent pricing, a clear timeline, and a one-year workmanship warranty.
If you receive a lower written bid from a licensed, bonded, and insured contractor for the same scope, materials, warranty, and timeline, we'll review it and match it where we can. Honest pricing, no games.
Bring us a qualifying written bid. We'll match it where we can, on residential projects under $25,000.
Applies to clearly defined-scope residential projects under $25,000 (before tax). Bid must be from a Washington-licensed, bonded, and insured contractor for identical materials, scope, warranty, and timeline.
Request a Quote →Tell us about your Spokane Valley ADU or addition project and we'll be in touch within one business day to schedule your free on-site estimate.