
About Our ADU construction Service in Seattle
Key Features & Benefits
Seattle + Eastside service area
Transparent estimates & timelines
Material and finish guidance
Clean job sites & respectful crews
Code-aware, detail-focused work
Quality craftsmanship & durable finishes
Flexible remodeling scopes (single room to full home)
On-site walkthroughs and progress updates
PNW-ready materials (moisture, wear, and maintenance friendly)
Our ADU construction Process
Free Consultation & Walkthrough
Plan, Design & Materials
Detailed Quote & Schedule
Build & Project Updates
Final Walkthrough & Punch List
Free Consultation & Walkthrough
We visit your home, learn your goals, take measurements, and confirm scope, constraints, and priorities.
Plan, Design & Materials
We help you finalize layout, finishes, and materials that match your style, budget, and Seattle-area home needs.
Detailed Quote & Schedule
You get a clear estimate and timeline. We align expectations before work starts, not after things go sideways.
Build & Project Updates
Our team completes demolition, construction, and installation with consistent communication and job-site cleanliness.
Final Walkthrough & Punch List
We verify details, address touch-ups, and hand off a finished space you’ll actually enjoy living in.
Recent ADU construction Projects in Seattle

Plan Your ADU construction Project
Seattle Basement Finishing Cost Guide 2026
Explore the comprehensive Seattle basement finishing cost guide for 2026. Get realistic cost ranges, permit info, and expert tips for your Seattle home from Kolmo Construction (Lic# KOLMOL*753JS).
Read the guideEstimate your adu construction cost
Configure scope and get an itemized material + labor breakdown for your specific Seattle project.
Open the calculatorReady to Start Your ADU construction Project in Seattle?
Contact us today to schedule a free consultation and get a detailed quote. Our licensed team is ready to bring your vision to life with expert craftsmanship and attention to detail.
Or call us directly at (206) 410-5100
