Custom Accessory Dwelling Unit (ADUs) in Corvallis, OR

Offering Tailored ADU Solutions for Families and Homeowners in Corvallis, Philomath, Albany, and Lebanon.

Whether you're thinking about a guest suite, a creative she-shed, a personal workshop, or a private space for an aging parent, we help you design and build custom Additional Dwelling Units (ADUs) that fit your life. We plan everything with your requirements, existing setup, and budget in mind.

What Makes Our ADU Builds Different

No two families or backyards are the same, and neither should your ADU. Every ADU we build is customized to meet your specific plan, usage, and budget. After all, what's the point of an ADU if it doesn't work for you?

Personalized Designed Just for You

While some families need a quiet escape, others want a place for the family to stay. We adapt every ADU project to your unique use and lifestyle.

Work with A Clear Budget

Leave the stress behind with a crystal clear, upfront budget. From start to finish, we’ll help you understand your options, stay within budget, and avoid surprise costs.

Endless Design Possibilities

Get your ADU designed and built the way you imagined it. We build ADUs in all shapes and sizes, including mother-in-law cottages, creative studios, rentals, and everything in between.

One Team for Everything

Manage your ADU project easily with only one team to handle. We’ll take care of everything, including design, permits, carpentry, trades, and cleanup.

Types of Accessory Dwelling Units (ADUs) We Build

Since 2013, we’ve served homeowners in Corvallis, Albany, Philomath, and Lebanon, looking to expand with functional and beautiful ADUs. Instead of offering traditional options, we specialize in bringing your dream ADU to life. But here are a few ideas to get you started:

Purpose-Based ADUs:

Guest & In-Law Rooms

Create a cozy and private spot for family or friends to stay. Perfect for welcoming loved ones without sacrificing your own space.

Storage & Hobby ADUs

Keep your home organized with a dedicated space for tools, crafts, or storage. It’s the extra room you didn’t know you needed.

Detached ADU (DADU)

Create a separate building on your property that offers full privacy and flexibility. It’s great for families who want their own space.

She Sheds & He Sheds

Need a quiet place to unwind, work on hobbies, or get creative? These custom sheds are made just for your personal escape.

Rental Property Units

Generate extra income with a fully equipped detached rental on your property. A smart way to boost your income right at home.

Structural ADUs:

Attached ADU

Connect an ADU to your home, complete with a private entrance, for the best of both worlds. It’s close but independent.

Garage Conversion ADU

Easily turn your garage into a livable unit. A budget-friendly way to add space without building something new.

Backyard Offices & Studios

A home office or studio just steps away lets you focus without distractions. Ideal for working remotely or pursuing your passions.

Young Adult Housing

Give grown kids or family members a place nearby where they can have privacy but still be close when needed.

Over-Garage ADU

Utilize the space above your garage to add comfortable living quarters without occupying your yard.

Junior ADU (JADU)

Build a small, cozy unit inside your home, usually under 500 square feet. It’s perfect for guests or affordable housing needs.

Need something more unique? Let’s talk

Our ADU Construction Process

1. Consultation: We visit your home to discuss your ideas, budget, and goals.

2. Design & Planning: You receive a detailed plan that accurately reflects your vision and complies with all local codes.

3. Estimate: We provide a clear, line-by-line breakdown with no room for guesswork.

4. Scheduling: Once approved, we’ll set the start date and get to work.

5. Construction: Our crew handles every part of the construction.

6. Final Check: We match every detail to your expectations.

Happy Clients

  • Michael Boock

    ⭐️⭐️⭐️⭐️⭐️

    “Crowsfoot Carpentry did an outstanding job on our kitchen remodel. From start to finish, their communication was honest, straightforward, and clear. Their timing was impeccable—they met every deadline! Great bunch of guys and every subcontractor they brought in was top-notch, reflecting their commitment to quality and professionalism. We couldn’t be happier with the final result.”

  • Deanna Brooke

    ⭐️⭐️⭐️⭐️⭐️

    Our remodel project finished on time, on budget, and ended up better and more beautiful than we could have imagined. And the extra benefit of a great bunch of guys! We thank you and the whole crew for a great job and just a really great experience. Thank you, thank you, thank you.

Building ADUs in the Willamette Valley Since 2013

For over a decade, we’ve been helping homeowners expand their living space in Corvallis, Philomath, Albany, Lebanon, and surrounding communities. Our team is familiar with local building codes and ADU trends, and we bring your idea to life without exceeding your budget.

Certifications and Memberships:

  • BBB Accredited 

  • NARI Member (National Association of the Remodeling Industry) 

  • Western Oregon Builders Association Member

  • EPA RRP (Renovation, Repair, and Painting) Certified 

  • Licensed with the CCB 

  • Approved Builder with Oregon State Credit Union

FAQs about Our ADUs

  • The cost varies depending on size, design, materials, and site conditions. On average, ADU construction in Corvallis can range from $100,000 to $250,000. We provide a detailed and transparent estimate during your consultation to ensure it fits your budget.

  • You can build guest cottages, mother-in-law suites, backyard offices, studios, storage units, or rental-ready tiny homes. We customize every ADU to meet your specific needs and property space requirements.

  • Yes, most ADUs require permits and must comply with local zoning and building codes. We can guide you through the process and coordinate with your local city office to ensure a seamless experience.

  • We build virtually anything from guest cottages to she-sheds to rental-ready tiny homes. Our forte is to turn your dream project into a beautiful, functional ADU.

  • Yes, existing garages, basements, or outbuildings can often be converted into ADUs with remodeling. We assess your space and advise on the best approach.

  • Our process includes consultation, design and planning, permitting, construction, and a final walkthrough. We handle everything to ensure your ADU matches your vision and needs.

  • We specialize in designing for both small and large properties, maximizing the use of your space.

  • ADUs must follow Corvallis zoning rules, setback requirements, height limits, and safety standards. We stay updated on codes and ensure your project is fully compliant.

  • A professional builder ensures your ADU meets all codes, stays on schedule and budget, and is built with quality craftsmanship. We handle permits, inspections, and manage the entire project for a stress-free experience.

  • Like the cost, the timeline also depends on factors such as size, design, finishes, and site conditions. We’ll keep you informed of the progress and finish the work on time.

Build Your Dream ADU Today

Get expert insights, transparent pricing, and a plan that brings your dream ADU to life. Schedule your no-pressure consultation and explore what’s possible for your property.