MULTNOMAH COUNTY, OR — ADU CONSTRUCTION
Serving Multnomah County, OR
I See Construct serves Multnomah County for ADU construction and major renovation projects. Licensed for Oregon work. Based in Battle Ground, WA — right across the Columbia River from Portland.

ADUs in Multnomah County, OR are permitted through the Portland Bureau of Development Services (BDS). Most ADUs in Multnomah County cost $120,000 to $300,000 or more depending on size and site conditions. Oregon contractor licensing is required for all construction work in Multnomah County. I See Construct holds Oregon licensing and serves Portland and surrounding Multnomah County areas.
What We Build in Multnomah County
ADU Construction
Detached, attached, and conversion ADUs in Portland and Multnomah County. Permitted through Portland BDS. We manage the application process and the full build.
Garage Builds & Shops
Large-scope whole-home renovations and major additions in the Portland metro. No standalone kitchen or bathroom jobs.
Full Home Remodels
Detached garages and shop buildings on Multnomah County lots. Oregon permits apply.
Multnomah County Areas We Serve
Portland (all neighborhoods) · Gresham · Troutdale · Fairview · Wood Village · Maywood Park. We also serve neighboring Clackamas County, OR and across the Columbia in Clark County, WA.
ADU Permits in Multnomah County, OR
ADUs in Portland and Multnomah County are permitted through the Portland Bureau of Development Services. Portland has actively streamlined its ADU process — owner-occupancy requirements and most older development charge barriers have been removed.
Portland BDS permit timelines run 3 to 6 months for standard ADU applications — longer than Clark County. We build this into your project schedule from day one. The timeline we give you includes the permit wait.
Oregon contractor licensing is required for any construction project in Multnomah County. Always verify your contractor's Oregon credentials before signing. We hold the required Oregon licensing for work in the Portland metro.
Common Questions About Building in Multnomah County, OR
ADUs in Multnomah County typically run $120,000 to $300,000 or more depending on size, site conditions, and finish level. Portland construction and permitting costs run higher than Clark County. We give you a real number after the site visit.
Yes. We manage the Portland BDS permit process — pre-application, formal application, and all required inspections. You do not deal with the permit office directly.
Yes. Oregon contractor licensing is required for all construction work in the state. We hold the required Oregon credentials for work in Portland and Multnomah County. Ask any contractor for proof of Oregon licensing before you sign.
Portland BDS permit approval runs 3 to 6 months. Construction after permit approval takes 5 to 8 months. Total from design through move-in: 9 to 14 months depending on scope.
Ready to Build in Multnomah County?
We come out, look at your property, and give you a straight answer on cost and timeline. No pressure. No obligation.
