ADU Additions in Portland, OR

An increasing number of homeowners in the Portland area are choosing to add a separate living space on their property. Whether you have extended family members living with you or you want a private guest house for when friends come to stay, an accessory dwelling unit (ADU) may be the perfect solution.

Building an ADU increases your home’s total square footage, adds usable living space, and boosts your property value. At Hamish Murray Construction, we specialize in building luxury ADUs of all shapes and sizes, designed to serve your specific purposes. If you’re looking for an established, local builder for the construction of your addition, Hamish Murray provides exquisite craftsmanship and unmatched flexibility and customer service.

Types of ADU Additions

From backyard tiny houses to basement conversions, ADUs come in a variety of structural forms. All types of ADUs add a separate usable living space and can substantially increase your property’s value.

At Hamish Murray, we believe your home should be built to serve the needs of you and your family. We build all kinds of ADUs, and we’ll work alongside your architect/designer to build the ideal space for you based on your lifestyle, preferences, budget, and timeline requirements.

We work on projects big and small, from minor bathroom remodels to custom new-construction homes. Here are a few of the most common types of ADU projects:

  • Detached ADUs (also called “backyard cottages” or “granny flats”)
  • “Bump-out” or “side-addition” ADUs
  • Garage-conversion ADUs
  • Basement-conversion ADUs
  • Attic-conversion ADUs
  • Above-garage ADUs

Our Process

At Hamish Murray, we’ve earned our reputation as a truly local, customer-first home builder. We take the vision you and your architect create and make it a reality, working within your parameters and budget. It starts with an idea — a vision for your new living space. As you develop this vision, you can bring your own architect/designer or we’ll put you in touch with one of our trusted partners. You’ll work with our team of experts to develop specific project goals, create a budget and timeline, and finalize each and every detail of your project before we begin construction.

You’ll have a single project manager working with you during every step of the planning and construction phases. They’ll be your main resource and your project guru to answer any questions you have at any point during the entire process.

Working With Us

Our Approach to Building ADUs

As you plan your ADU, what’s important to you becomes important to us. We’re not here to dictate what your space needs to look like. We’re here to build you the ADU addition you imagine for your property. We build everything from luxury above-garage guest quarters to attached in-law suites built with universal design principles for aging-in-place. Whatever your needs and preferences, we’re here to transform them into a usable, beautiful space.

Your Budget, Your Timeline, Your Way

Our focus is on providing a flexible process that works for you and making sure we bring your vision to life. We work within your budget constraints and schedule to ensure you don’t just love the finished project, but feel comfortable throughout the process. We’re upfront and transparent about costs, and we also ensure your project follows all local Portland ADU rules and regulations.

Our Team

We’re a dedicated team of professionals and craftsmen who share the same philosophy – your home should work for you. Every construction project involves challenges, but our experience and depth of knowledge mean we know how to avoid unnecessary roadblocks and respond to obstacles when they appear. You can rest assured your project is in good hands with us, and we can’t wait to build you a gorgeous ADU on your property.

View Our Portfolio For Visual Inspiration

Not sure exactly what type of ADU is right for you? Still deciding on a location? Our portfolio is diverse and includes a variety of ADUs, additions, unique spaces, and new construction. Take a peek and get inspiration for your project.

View Portfolio

Check Out Awesome ADU Ideas

Building an ADU addition is a great way to add space and boost the value of your home. From cozy in-law suites to rustic guest-room getaways, browse a few ADU ideas that are guaranteed to add to your living space and property value!

Read More

Let’s Get Started on Your ADU Addition

An ADU addition is a great way to add space and flexibility to your home. It’s also a smart financial move and it does wonders for your property’s resale value. Whether you imagine a light and bright above-garage guest house with big windows and luxury amenities or a cozy standalone cottage surrounded by trees in your backyard, we’re here to listen to all your ideas and help transform your dream ADU into a reality.