Room Additions in Portland, OR
Bedroom, family room, and great room additions — planned, permitted, and built by one team.
Add the space your family needs without moving. A room addition lets you keep the neighborhood, the schools, and the lot you already chose, and put the square footage exactly where the floor plan falls short.
We match rooflines, siding, trim, and flooring so the addition looks original rather than bolted on. One project lead runs foundation, framing, systems, and finishes, and the existing home stays weather-tight and livable while the new envelope is dried in.
Scope of Work
What’s Included
Bedroom additions
New bedrooms sized, daylit, and connected to the existing hallway.
Family & great room additions
Open living space planned around sightlines and gathering.
Bump-outs
Smaller expansions that gain a kitchen nook, office, or mudroom.
Foundation & framing
Engineered footings and framing tied into the original structure.
Roof tie-in & exterior matching
Roofline woven in; siding and trim matched to the house.
HVAC, electrical & plumbing
Systems extended into the addition and inspected.
Permits
Drawings, submittal, plan-review responses, and inspections handled.
How It Works
Our Process
- 1
Consultation & site walk
We walk the home with you, measure the existing structure, and talk through goals, budget range, and timing before anything is drawn.
- 2
Design & engineering
Our in-house studio produces plans and 3D views, and our structural team engineers the framing, foundations, and systems behind them.
- 3
Permits & pricing
We prepare and submit the permit package, answer plan-review comments, and lock a detailed, line-item price against the approved set.
- 4
Build & walkthrough
One Masters project lead runs the trades, schedules inspections, and finishes with a punch walkthrough before handing the space back.
Where We Build
Areas We Serve
See every neighborhood we build in on our Portland Metro service areas map.
Frequently Asked
Room Addition FAQs
What Portland and Vancouver homeowners ask before they begin.
Room additions in the Portland area generally run $400–$700 per square foot depending on structural scope, site access, and finish level. See our Portland remodeling cost guide for detailed ranges.
Start Your Room Addition
Tell us about the home and we’ll walk the site, talk through scope, and give you a realistic range — no obligation.
CCB #248237 · Licensed in Oregon & Washington