DWV Construction
Portland Metro Service

Add square footage that pays you back.

Portland is one of the most ADU-friendly cities in the country—and the permit process is still genuinely complicated. Setbacks, height limits, lot coverage, sewer separation, occupancy. We handle it. You decide on finishes.

Typical Timeline
6–9 months
Typical Scope
Detached ADU, attached ADU, garage conversion, basement ADU
Accessory Dwelling Units (ADUs)
What is included

Every line of the scope. No surprises.

01

Feasibility + zoning check

Before you commit, we tell you straight whether your lot can accommodate what you want. Setback analysis, lot coverage math, height envelope review.

02

Design + permit drawings

Architectural drawings, structural coordination, permit application package. We file, we pick up corrections, we resubmit.

03

Site work + foundation

Excavation, foundation pour, separate sewer + water laterals if required, electrical sub-meter trench.

04

Framing through finish

Conventional framing, MEP rough-in, insulation, drywall, kitchen, bath, finishes. Same standards as the main house.

05

Occupancy walk

Final inspection, certificate of occupancy, separate utility meters energized. Ready to rent or move family in.

Where we work

Accessory Dwelling Units (ADUs) across the Portland Metro

We cover Lake Oswego, Milwaukie, SE Portland and the surrounding metro. Owner walks the job daily on every project.

DWV Construction walk-in shower with glass partition and tile niche — Milwaukie

— Frequently asked questions

10 questions

Common questions before starting a remodel.

If your question is not listed, call Don directly. You will have one point of contact through final inspection.

Talk to the owner
(971) 333-2496
  • Most kitchens land between 6 and 10 weeks from demo day. Cabinet lead time is the biggest variable — if you're flexible on door style, we can usually shave 2–3 weeks. We give you a real schedule with milestones, not a 'sometime in the spring' answer.

  • Do not see your question here? Reach out and we will walk through it.

    Ask Don

Request a call back

Schedule your building project today.

Tell us about your project. We’ll call within one business day to set up a free in-home walkthrough. No deposit, no obligation, no pressure.

  • Talk to Don directly

    (971) 333-2496 · Mon–Fri 8am–5pm

  • Quote in 48–72 hours

    Real line-item pricing, not 'starting at' numbers.

  • Licensed · CCB #208048

    Liability + workers comp on every job.

We’ll call within 1 business day. We never share your info.