# ADU Craft Portland > ADU builder in Portland, Oregon: detached ADUs, garage conversions, attached ADUs and basement ADUs. Design, permits and construction. Licensed and insured. Service area and contact: see https://aducraftportland.com/contact. No phone number is published; requests go through the website form. Prices on this site are published ranges, not quotes. Updated October 2026. ## Main pages - [About ADU Craft Portland | ADU Builder in Portland, OR](https://aducraftportland.com/about): ADU Craft Portland designs, permits and builds ADUs in Portland, Beaverton, Lake Oswego, Milwaukie and Gresham. - [ADU Builder Service Areas Around Portland, OR | ADU Craft](https://aducraftportland.com/areas): ADU design and construction in Portland, Beaverton, Lake Oswego, Milwaukie and Gresham, Oregon, with the local rules that change from city to city as of October 2026. - [Contact ADU Craft Portland | Free ADU Lot Check](https://aducraftportland.com/contact): Request an ADU lot check in Portland, Beaverton, Lake Oswego, Milwaukie or Gresham. We review zoning and overlays and reply with the ADU types that fit. - [Portland ADU Guides: Costs, SDCs, Size and Rentals | ADU Craft](https://aducraftportland.com/guides): Answers to Portland ADU questions: cost, the SDC waiver, two ADUs per lot, Airbnb rules, size limits and parking, each dated October 2026 with sources. - [ADU Builder in Portland, OR | ADU Craft Portland](https://aducraftportland.com/): ADU builder in Portland, Oregon: detached ADUs, garage and basement conversions, attached ADUs. Design, permits and construction. Licensed and insured. - [Portland ADU Process and Timeline | ADU Craft Portland](https://aducraftportland.com/process): How an ADU gets built in Portland, OR: lot check, design, permits, construction and inspections, with typical timelines as of October 2026. - [ADU Types in Portland: Detached, Garage, Attached, Basement | ADU Craft](https://aducraftportland.com/services): Compare ADU types in Portland, OR: detached ADUs, garage conversions, attached additions and basement ADUs, with size and height limits as of October 2026. ## Guides - [Can I Build Two ADUs on My Portland Lot? | ADU Craft](https://aducraftportland.com/can-i-build-two-adus-on-my-portland-lot): Two ADUs on one Portland lot as of October 2026: zone, street frontage, lot size, the z overlay, attachment and visitability rules. - [Can I Rent My ADU on Airbnb in Portland? | ADU Craft](https://aducraftportland.com/can-i-rent-my-adu-on-airbnb-in-portland): Short-term rental of an ADU in Portland as of October 2026: Type A permits, the 270-day residency rule, the SDC covenant and Gresham's ban. - [Does an ADU Need Off-Street Parking in Oregon? | ADU Craft](https://aducraftportland.com/does-an-adu-need-parking-in-oregon): Oregon ADU parking and owner-occupancy rules as of October 2026: ORS 197A.425, SB 1051, HB 2001, the vacation rental exception and garage conversions. - [Does Portland Waive SDCs for ADUs? (October 2026) | ADU Craft](https://aducraftportland.com/does-portland-waive-sdcs-for-adus): Portland's ADU SDC waiver as of October 2026: who qualifies, the 10-year short-term rental covenant, the 150% penalty and how to apply. - [How Big Can an ADU Be in Portland? (October 2026) | ADU Craft](https://aducraftportland.com/how-big-can-an-adu-be-in-portland): Portland ADU size limits as of October 2026: 800 sq ft or 75% of the house, the basement exception, height and placement rules, and suburban limits. - [How Much Does an ADU Cost in Portland? (October 2026) | ADU Craft](https://aducraftportland.com/how-much-does-an-adu-cost-in-portland): ADU cost in Portland, OR as of October 2026: published ranges for detached, attached and conversion ADUs, Portland fees, and what drives price. ## Services - [ADU Design and Permits in Portland, OR | ADU Craft Portland](https://aducraftportland.com/adu-design-and-permits): ADU design and permitting in Portland, OR: the permit set, checksheets, the SDC waiver covenant and adjustment reviews, as of October 2026. - [Attached ADU Builder in Portland, OR | ADU Craft Portland](https://aducraftportland.com/attached-adu): Attached ADU additions in Portland, OR: size limits, pairing with a detached ADU, fire separation and 2026 cost ranges. Licensed and insured. - [Basement ADU Conversion in Portland, OR | ADU Craft Portland](https://aducraftportland.com/basement-adu): Basement ADU conversions in Portland, OR: the size-cap exception for houses 5+ years old, ceiling height, egress and moisture. Licensed and insured. - [Detached ADU Builder in Portland, OR | ADU Craft Portland](https://aducraftportland.com/detached-adu): Detached backyard ADUs in Portland, OR: placement, 20-foot height limit, design rules and 2026 cost ranges. - [Garage Conversion ADU in Portland, OR | ADU Craft Portland](https://aducraftportland.com/garage-conversion-adu): Convert your garage into a legal ADU in Portland, OR. Parking, size limits, the work a garage needs and 2026 cost ranges. Licensed and insured. ## Areas served - [ADU Builder in Beaverton, OR | ADU Craft Portland](https://aducraftportland.com/beaverton): ADUs in Beaverton, Oregon: what state law guarantees, middle housing options, and what we check on a Beaverton lot, as of October 2026. Licensed and insured. - [ADU Builder in Gresham, OR | ADU Craft Portland](https://aducraftportland.com/gresham): ADUs in Gresham, Oregon: 900 sq ft or 75% size cap, height and setbacks, the short-term rental ban and Type I review, as of October 2026. - [ADU Builder in Lake Oswego, OR | ADU Craft Portland](https://aducraftportland.com/lake-oswego): ADUs in Lake Oswego, Oregon: the 800 sq ft gross floor area cap, one-ADU limit, entrance rules and what we check on sloped lots, as of October 2026. - [ADU Builder in Milwaukie, OR | ADU Craft Portland](https://aducraftportland.com/milwaukie): ADUs in Milwaukie, Oregon: no owner-occupancy or parking rule since 2020, the closed SDC waiver pilot, and sewer providers, as of October 2026.