Initial Survey
We assess your space, your goals, and what’s feasible.
Attention Portland & Bend Homeowners - Save Months on permitting & $1,000’s of dollars with PRE-APPROVED ADU’s
Expand Your Home & Unlock Income-Potential With Expert Additions & ADUs
Add living space, rental units, or guest suites custom designed, built precisely & fully managed from start to finish.
Fill Out the Form for a Free Consultation
Our Ultimate ADU Offer
From Concept to Completion Includes:
Initial feasibility & site evaluation
Budget planning & in-depth estimating
Design coordination
Permit management & city coordination
Construction management
Licensed, code-compliant build
Final walkthrough & completion
Our Ultimate ADU Offer Includes:
Free Permit Management
(Does not include plans, permit fees, or engineering costs)
Free In-Depth Estimate
$1,000 Discount OR Appliance Credit
Complimentary Design Assistance
Why ADUs Are Worth It
Smart space. Real income. Long-term value.
Big Reason #1:
Improve Quality of Life with More Space
1. Solve space problems now without moving
2. Ideal for:
Growing families
In-law / multigenerational living
Adult kids moving back home
Home office, studio, or flex space
3. Adds privacy and flexibility while staying in the same neighborhood
Big Reason #2:
Financial Benefits & Long-Term Value
1. ADUs can generate monthly rental income
2. Strong demand for rentals in Oregon markets
3. Significant increase in home equity
4. Potential to leverage equity through:
HELOC
Refinance
Higher resale value
Studies show ADUs can increase property value by 20–30%+, depending on size & location
Rental ADUs often cash-flow in strong Oregon markets
ADUs consistently rank among the highest ROI home improvements available
Types of Additions & ADUs We Build
Garage Conversions
Basement Conversions / Remodels
Attached ADUs
Detached ADUs
Second-Story Additions
Home Additions
(bedrooms, living space, offices, studios)
Our Additions & ADUs Projects
Why Choose Us
For Your Addition or ADU's Construction
1. On-Time Delivery!
7-Day Average Schedule Variance. Last year, most projects were completed within two days of the original completion date.
2. Accurate Estimates
5% Start-to-Finish Cost Variance. We pride ourselves on realistic budgets with minimal surprises.
3. End-to-End Project Management
From planning and permits to construction and close-out.
4. Licensed, Insured & Code-Compliant
Every project meets local and state building requirements.
5. Family-Owned, Local & Loved
Backed by real 5-star reviews and testimonials from homeowners like you.
Hear From Our Happy Clients
We hired Harris & Sons to remodel part of our house and also build an addition. The project involved 3 bedrooms, 2 walk-in closets, and 2 bathrooms. Throughout the construction process, which had a few unforeseen complications, Harris & Sons worked to meet our expectations, gave us constructive options, and pushed to keep as close to the schedule as possible.
They worked with us on controlling overall cost and understood and respected our financial capabilities and limits. In the end they gave us a beautiful and good quality home.
— APT 350
We had Brian and his team Marcos & Jackson put in a privacy fence for us. The work done was outstanding and the fence looks great. I’m overjoyed by the job they did dealing with the ‘less-than-friendly” rock pile we live on. The work was done efficiently, clean, and fast. I don’t think I heard one curse-word uttered.
These guys are clean, professional, quick, and darn good at what they do! I couldn’t recommend them more and we’ll be calling them again to put in our deck! Thx guys!!!
— Cameron Gillihan
This team did such an amazing job building my pergola cover and enclosing my deck. Very professional and quality work.
All of their suggestions for design were great, and I would recommend them for any project.
— Austin A
We hired Harris & Sons to remodel part of our house and also build an addition. The project involved 3 bedrooms, 2 walk-in closets, and 2 bathrooms. Throughout the construction process, which had a few unforeseen complications, Harris & Sons worked to meet our expectations, gave us constructive options, and pushed to keep as close to the schedule as possible. They worked with us on controlling overall cost and understood and respected our financial capabilities and limits. In the end they gave us a beautiful and good quality home.
Before & After
See how we elevate old kitchens into beautiful, functional spaces designed with craftsmanship and built with care.
After
Before
Pre-approved ADU’s
Pre-approved ADU plans allow homeowners in Oregon to move forward in less than half the usual approval time, accelerating ADU goals by months. As each design is already reviewed and accepted by the city, you bypass lengthy permitting delays and revisions, getting from planning to construction faster and with far less friction.
These pre-vetted plans can save thousands of dollars in design, engineering, and revision costs while simplifying construction from day one. With defined plans, predictable pricing, and clearer schedules, timelines and budgets stay under control. You know exactly what you’re getting upfront. Resulting in a smoother, more efficient, and more confident building experience.
Explore Our Pre-Approved ADU Designs
Our 5-Step Construction Process
From Concept to Completion — We Make It Simple
Design Phase
We listen and craft a tailored design that fits your style and needs.
Planning & Permits
Scope, timeline, budget and permits all locked in. Transparency from day one.
Construction Phase
Licensed pros execute the work using premium materials and proven techniques.
Final Walkthrough & Handover
We review the finished project with you, make any final adjustments, and deliver your new space. You approve only when you’re fully satisfied.
Frequently Asked Questions
1. What’s the difference between an addition and an ADU?
A home addition expands your existing living space, like adding a new bedroom, bathroom, or living area. An ADU (Accessory Dwelling Unit) is a separate, self-contained unit — often with its own kitchen, bathroom, and entrance — that can be used for guests, extended family, or even rented out for additional income.
2. Do I need permits for an ADU?
Yes, building an ADU in Bend, OR requires proper permits and must meet local zoning regulations. Our team at Harris & Sons handles the permitting process for you, ensuring your ADU complies with all city codes and requirements.
3. Can I use an ADU as a rental property?
Yes! ADUs are perfect for long-term rentals, guest houses, or multigenerational living.
4. How long does it take to complete a home addition?
Timelines vary, but most additions take 8–12 weeks from design to finish.
5. Will a home addition increase my property value?
Definitely. Additions add square footage and functionality, which increase resale value significantly.
About Harris & Sons Construction
For over 40 years, our family-owned team has been transforming homes with trusted craftsmanship and quality care. From remodels and additions to painting and framing, we create beautiful, lasting spaces tailored to your lifestyle.
We believe every project should feel personal. That’s why we take the time to understand your vision and guide you through each step, ensuring a smooth experience, clear communication, and results that exceed expectations.
This site is not a part of the Facebook website or Facebook Inc. Additionally, this site is not endorsed by Facebook in any way. FACEBOOK is a trademark of FACEBOOK, Inc.
Copyright © 2025 Harris & Sons. All rights reserved.