Renowned Home Addition Services in Portland, OR

Create more space for memories with a stylish house or second-story addition

With over three decades of expertise, COOPER Design Build & Remodeling of Portland crafts home additions that seamlessly blend with your existing structure. Ask any homeowner what they want most in an expansion and the answer will always be the same: “We would like it to look like it was part of our home to begin with.” Whether it’s just a room or a full second story, our clients rave about our home addition designs for this very reason!


We spend a lot of time talking the process through with you. Together, we imagine what the newly created space will achieve, how you will use it, and how you will relate to it over time. Then, we take a look at what an addition will do to traffic patterns and living space, and consider what changes, if any, need to be made to the existing structure. It’s this thorough approach that makes our home addition services in Portland so highly regarded in the industry.

The roadmap to redefining your living space

Our seamless process for all house additions





What makes us Portland’s preferred home addition services

We’re focused on creating your dream space while making sure the entire process of house and second story additions is streamlined and worry-free for you. Here’s what makes us stand out:

Expert hands sculpting your house addition

Successfully creating a new expansion that looks like it was part of the original structure requires exceptional skill and craftsmanship. Our team of seasoned architects, designers, and home addition contractors in Portland are masters in this field. Floor plans, materials, and technology change over time, but they adeptly handle their evolving dynamics, incorporating modern needs into each project, no matter if it’s a room or a second-story addition.

Once we have a thorough understanding of your needs, we begin the detailed work of organizing design elements, thinking through hundreds of details to ensure the newly crafted space integrates flawlessly with your existing structure. In the end, all comes together in a truly integrated home addition that is sensitive, respectful, and balanced. Our goal is to not only make the new space look like it belongs but to make it look like it was there in the first place.

Streamlined extensions, stunning results

Expand your residence’s potential

Let’s add a new chapter to your living space’s story. Schedule a consultation today, tell us about your envisioned room or a second-story addition, and see our seasoned contractors in Portland bring it to life!

We build trust as
well as homes!


Frequently Asked Questions

Home additions offer a stylish way to add some functional space to your home in Portland. They provide the opportunity to tailor new areas to your specific needs, whether it’s by expanding the living room, adding a home office, or creating a guest suite. House additions not only enhance the functionality of your living space, they also provide a chance to use new design elements and increase the property value.

The best house addition varies based on individual needs, the existing structure, and personal vision. Commonly valued ones include primary suites, expanded kitchens, sunrooms, or additional bathrooms. However, the ideal choice is one that aligns with your lifestyle and enhances your daily living.

Your journey begins by envisioning the purpose and potential of your new space. Consider how this home addition will integrate with your current layout and style. However, for navigating all the aesthetic choices, understanding structural considerations, and complying with zoning laws, it is best to consult with dependable home addition contractors in Portland.

A second-story addition can be highly worthwhile, particularly if you need more space but prefer not to move. It’s a great way to expand your residence vertically, offering more space for bedrooms, bathrooms, or living areas.

When planned and executed skillfully, second story additions in Portland  can blend seamlessly with your existing structure, appearing as though it was always part of your residence. This type of update not only enhances living space but can also significantly increase your property’s value.

At COOPER Design Build & Remodeling, we specialize in crafting exquisite home additions that seamlessly blend with your living space. Whether your property is nestled near Forest Park or sits atop Council Crest, our skilled experts, designers, and contractors are equipped to meet your needs. 

Our services aren’t limited to just home additions – we also excel in elegant bathroom and suite remodels, modern outdoor living renovations, and charming historic home remodels. Covering areas throughout Portland, we offer comprehensive home remodeling in Beaverton, bespoke house updates in Lake Oswego, and much more. Entrust your project to us, and experience our commitment to quality, creativity, and customer satisfaction!

Made with &