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Liberty Lake, WALicensed & BondedPrice Match Guarantee
← ADUs & Additions

ADUs & Additions in Liberty Lake, Washington.

Premier Construction & Design designs and builds accessory dwelling units and home additions throughout Liberty Lake. Our team manages zoning review, City of Liberty Lake permitting, structural design, and full build-out under one roof. Recent Washington legislation, including SB 6026, is driving real demand in Liberty Lake for ADUs, small multifamily conversions, and townhomes on lots that were single-family only a few years ago. We help owners read what their parcel now allows and build detached units and additions that fit the neighborhood's design standards instead of fighting them. Every project comes with transparent pricing, a clear timeline, and a one-year workmanship warranty.

— Liberty Lake Services
ADU.

Related services we offer in Liberty Lake.

  • → Detached ADUs and backyard cottages
  • → Attached ADUs, in-law suites, and basement conversions
  • → Garage conversions and garage-with-ADU-above
  • → Room additions: primary suites, offices, and family rooms
  • → Second-story additions and pop-tops
  • → Zoning, permitting, and site plan coordination
— Our Pricing Promise

We compete on quality — not by cutting corners.

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.

Eligible Projects

  • Roof replacements
  • Siding replacement
  • Flooring installation
  • Deck construction
  • Concrete pours
  • Exterior repairs
  • Defined kitchens & baths

Not Eligible

  • New construction
  • Full home remodels
  • Additions & ADUs
  • Structural reconfigurations
  • Multi-family builds
  • Commercial projects
  • Design-build projects
Price Match Guarantee

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 →
— Free Liberty Lake ADU Quote

Let's add space to your Liberty Lake home.

Tell us about your Liberty Lake ADU or addition project and we'll be in touch within one business day to schedule your free on-site estimate.

By submitting, you agree to be contacted by Premier Construction & Design about your project.