Modern Northwest builds dental office build-outs in Vancouver and across Clark County under our Washington contractor registration. A dental office on this side of the river is built to a different code, permitted by a different office, and registers its X-ray equipment with a different state than the same practice in Portland. We hold both licenses, so the practice gets one contractor who knows both sets of rules.
Dental construction is the same hard problem on both sides of the river. Every operatory needs its own water, suction, air, drainage and power run to the chair, the imaging room needs its shielding worked out before the walls go up, and sterilization has to flow one way from dirty to clean. What changes when you cross into Washington is the paperwork around it, and that is where a Portland-only contractor loses weeks. For the build itself, see our main dental office construction page.
| Item | Portland, OR | Vancouver, WA |
|---|---|---|
| Building code | Oregon Structural Specialty Code | Washington State Building Code |
| Who permits the build-out | City of Portland or the county | City of Vancouver (ePlans), Clark County, Camas or Washougal |
| Contractor license | Oregon CCB | Washington registration MODERNI888R7 |
| X-ray registration | Oregon Health Authority, Radiation Protection Services | WA Department of Revenue Business Licensing, inspected by WA Department of Health |
| Dental X-ray inspection cycle | About every 1 to 4 years | About every 3 to 4 years |
| Shielding plans before construction | Shielding is designed into the drawings | Dental facilities exempt from the shielding submittal, standards still apply |
| Amalgam separator rule | Federal, applies | Federal, applies |
Washington X-ray facts from the Washington State Department of Health, verified September 2026. Sources at the bottom of the page.
This is the step that surprises practices moving across the river. In Oregon, dental X-ray machines register with Oregon Health Authority. In Washington, X-ray equipment is registered through the Department of Revenue Business Licensing Service, and the Department of Health runs the inspections. Once the equipment is in, an inspector checks the facility and tests the machine against the standards in WAC 246-225, and dental facilities are generally inspected about every three to four years after that.
One genuine difference works in a dental practice's favor. Washington requires new and remodeled medical X-ray facilities to submit shielding calculations and floor plans before construction, but dental, podiatric and veterinary diagnostic facilities are exempt from that submittal. That does not mean the shielding stops mattering. The room still has to meet the radiation safety standards and pass inspection, so we design it right the first time rather than lean on the exemption.
Where the suite sits decides who reviews it. Inside Vancouver city limits, the building permit goes through the City of Vancouver Community Development Department and is submitted electronically through ePlans, where a permit specialist prescreens the package before any reviewer sees it. An incomplete dental submittal, and they have a lot of trade drawings, comes straight back. In unincorporated Clark County the build-out goes through Clark County Community Development. Camas and Washougal run their own building departments.
The amalgam separator requirement is federal, so it is the same here as in Oregon: a practice that places or removes amalgam and discharges to a public sewer needs a separator and a one-time compliance report to its wastewater authority. The full list of approvals a dental build-out needs is in our guide to dental office permits.
We build healthcare space on this side of the river, including the LifeStance Health behavioral health clinic on NE 51st Street in Vancouver. Our dental work, including Rosewood Dental Clinic, is across the Portland metro. We name our projects plainly, so we are not going to call a clinic something it was not.
It depends on the address. Inside Vancouver city limits the building permit goes through the City of Vancouver Community Development Department and is submitted through the city ePlans system. In unincorporated Clark County it goes through Clark County Community Development. Camas and Washougal run their own building departments. We confirm which office covers your suite before anything is drawn.
Yes. X-ray equipment in Washington is registered through the Department of Revenue Business Licensing Service, and the Department of Health runs the inspection program. Dental facilities are generally inspected about every three to four years. The rules are in WAC 246-225.
Generally no, and this is a real difference from medical imaging. The Department of Health requires shielding calculations and floor plans from new or remodeled medical X-ray facilities, but dental, podiatric and veterinary diagnostic facilities are exempt from that submittal. The radiation safety standards in WAC 246-225 still apply, and the room is still inspected.
Yes. It is a federal EPA rule, 40 CFR Part 441, so it applies the same in Vancouver as in Portland. A practice that places or removes amalgam and discharges to a public sewer needs an amalgam separator and a one-time compliance report to its wastewater authority.
Yes. Our Washington contractor registration is MODERNI888R7, active since 2012, and we are bonded and insured in Washington. Washington law requires that number on contractor advertising, and you can check it against the state record.
Send us the suite address before you sign the lease. In Clark County that one detail decides which building department reviews the build-out, and the walkthrough tells you whether the space can take operatory plumbing, a vacuum and compressor location, and an imaging room at all. Call (360) 326-2747, a Southwest Washington number and our main line, or request a free walkthrough. For design and budget, read our guides on dental office design and what a dental build-out costs.
We are licensed in Washington and build dental offices on both sides of the river. Call (360) 326-2747 or reach out for a free walkthrough.
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