ADUs/Home Additions
More Space. More Value. More Home.
We design and build custom ADUs and home additions for Portland homeowners ready to maximize their property and their lifestyle.
Special Offers for Your Project
Receive a Free 3D Custom Design
Work with us and get a free 3D design of your project included. See exactly what your finished home will look like before construction begins — valued at over $2,000.
Your home should grow with you. Whether you need space for family, a rental unit or just more room to live — an ADU or home addition is one of the smartest investments you can make as a Portland homeowner right now.
As an experienced ADU builder and home addition contractor in Portland, Oregon, we've spent over 25 years building backyard ADUs, garage conversions, room additions and second story additions across Portland, Beaverton, Tigard and the greater metro area. We handle everything from design through construction and assist you through the ADU permitting process every step of the way. One team, one point of contact, no headaches.
What's included:
- Custom architectural design
- Permitting assistance and guidance
- Foundation, framing, electrical, plumbing and HVAC
- Interior finishing including flooring, cabinets and fixtures
- Final walkthrough before handover
Service area: Portland, Beaverton, Tigard, Lake Oswego, Sherwood, Hillsboro, West Linn, Tualatin, Wilsonville and surrounding Portland metro areas.
Project ADUs/Home Additions Photos
Project ADUs/Home Additions Videos
Three Ways to Add Living Space.
An Accessory Dwelling Unit (ADU) is a secondary, self-contained home on the same lot as your primary residence. ADUs are perfect for multi-generational living, rental income, a home office, or a guest suite. In the Portland Metro area, they come in three flavors:
Internal ADU
A self-contained living space built within the footprint of your existing home — often a basement or attic conversion.
Attached ADU
A new self-contained living space connected to the main home, sharing at least one wall with the primary residence.
Detached ADU
A separate standalone structure on the same lot — a true backyard cottage with its own entrance and utilities.
ADUs/Home Additions FAQ
How long does it take to build an ADU?
Most ADU and home addition projects take up to 4 months from design through construction, depending on size, scope and permitting timelines. We give you a realistic schedule upfront and keep you updated at every stage.
Do I need a permit for an ADU in Portland?
Yes, ADUs and home additions require permits in Portland and surrounding cities. We assist you through the entire permitting process and city approval requirements so you always know what's needed and what comes next.
Can I rent out my ADU once it's built?
In most Portland metro areas, yes. A well built ADU is one of the strongest rental investments a homeowner can make right now. We can walk you through the local rules that apply to your property during your consultation.
How much does an ADU cost to build in Portland?
ADU costs in Portland typically range from $150,000 to $350,000 depending on size, finishes and site conditions. A detached ADU with full kitchen and bathroom will generally cost more than an attached or garage conversion. During your free consultation we'll walk you through realistic budget ranges based on what you're looking to build so there are no surprises down the road.
What's the difference between an ADU and a home addition?
A home addition expands your existing living space — adding a bedroom, extending a kitchen or building out a new room that connects directly to your home. An ADU is a separate self contained living unit on your property with its own entrance, kitchen and bathroom. Both add significant value to your property. Which one makes more sense depends on your goals, your lot and how you plan to use the space. We can help you figure out which is the right fit during your consultation.
"When our ceiling started leaking, it was a nightmare. Artem proved right away he was there to help us solve every problem. We ended up repiping the house, remodeling the kitchen and bathrooms, and residing and repainting the exterior. Our house has never looked this good. Artem became like family — I can't recommend him enough."
Flexible Financing & Payment Plans
We make home additions affordable with flexible financing options.
- 0% Interest Financing (for qualified applicants)
- Low Monthly Payment Plans
Ready to Get Started?
Reach out today and we'll make it easier from the very first call.