Additions & New Builds · Portland Metro

Home Additions in Portland, OR

Love the neighborhood but need more space? We add rooms, primary suites, second stories and bump-outs - from permit drawings and foundation to roof, finishes and final inspection.

CCB #262386 · Licensed, bonded & insured
Free on-site estimate · fixed written quote
Expected range: $120,000 – $400,000
Timeline: 3 - 8 months

Call or text(503) 962-9293

Home Additions by JOCS Construction in Portland, Oregon

What's Included

Home Additions, Done Start to Finish.

Design and permit drawings
Foundation and framing
Roof tie-in
Windows, siding and exterior match
Interior finishes
Licensed plumbing, electrical and HVAC coordinated
Permits and inspections

Expected range: $120,000 – $400,000 Timeline: 3 - 8 months

Expected range for most Portland-metro projects. Smaller jobs can come in under it; larger scope, premium materials or hidden damage can run higher. Your written quote is exact.

Get My Free Quote

How It Works

Four Steps. No Surprises.

Free Visit

We look at the job, measure and answer your questions.

Written Quote

A clear, fixed price in writing. No surprise add-ons.

We Build

One crew, one point of contact, weekly updates.

Walkthrough

We check every detail with you before we call it done.

Common Questions

Home Additions FAQ.

How much does a home addition cost in Portland?

Most additions run $300-$500 per square foot depending on foundation, plumbing and finish level.

Is adding on cheaper than moving?

Often, once you count agent fees, closing costs and a higher interest rate on a new home.

Can you match my existing house?

Yes. We match siding, roofline and trim so the addition looks original.