Additions & Conversions — Clark County, WA
More Space. More Value. Built Right.
Garage conversions and room additions across Clark County, Cowlitz County, and the Portland metro.
.webp)
A garage conversion in Clark County typically costs $30,000 to $80,000 depending on insulation, electrical upgrades, HVAC, and finish level. Room additions run higher based on size and scope. Both require permits — we handle design coordination, permits, and the full build.
What We Build
Garage Conversions
Turn an attached or detached garage into finished living space — home office, family room, gym, or additional bedroom. Requires permits and must meet residential building codes.
ADU Conversions
Convert a garage or bonus space into a permitted, self-contained accessory dwelling unit with its own kitchen and bath. Full ADU process applies.
Room Additions
Add square footage to your existing footprint. Master suites, sunrooms, expanded living areas. We tie into existing systems and match your exterior.
Second-Story Additions
Adding a full second floor or partial upper-level addition. Structural engineering required. We coordinate the full scope from foundation review through roofline.
How It Works
Free Consultation
We look at the space, check zoning and code requirements, and give you a real number for what you want to do.
Design + Permits
We coordinate drawings and pull the permits. Conversions require inspections at multiple stages — we schedule and manage all of it.
The Build
Framing, insulation, drywall, electrical, HVAC, finishes. Full crew. On schedule.
Final Walkthrough
You see the finished space, confirm everything is right, and we close out.
Frequently Asked Questions
Yes. Converting a garage to living space is a change of occupancy and requires a building permit in Clark County. We pull the permit and manage all required inspections.
Yes — if it meets ADU requirements including its own entrance, kitchen, and bath. We build garage conversion ADUs regularly. The permit process is more involved but fully manageable.
Room additions typically run $80 to $200+ per square foot finished, depending on complexity and systems involved. We give you a real number after seeing the property.
Potentially, depending on your city's zoning. We check this before we start so you are not in violation of any local ordinance when the project is done.
Real Reviews. Real Projects.
Ready to Add Space?
Tell us what you are working with. We come out, look at the property, and give you a straight answer on what is possible and what it costs.