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Home Additions in North Seattle

Add the Space You Need to Your Home

Modern kitchen remodel in Seattle by CB Construction featuring grey cabinetry, white quartz countertops, and a large island with wood stools

Add Some Breathing Room to Your Home

Feeling like your home could use a little extra space? Whether you’re dreaming of a new bedroom, an office, or expanding your living areas, CB Construction is here to help make it happen—without the stress. We specialize in home additions that fit right in with the rest of your home, so the new space feels like it’s always been there.

From converting garages into cozy bedrooms to building out attics for extra living space, we approach every project with care and craftsmanship, ensuring it not only meets your needs but enhances your everyday life.

Maybe you need a new primary suite on the main floor with a spacious bathroom, or you’re thinking about turning that attached garage into a guest room with a full bath. Whatever your vision, we’ll work with you to create a space that’s functional, beautiful, and truly yours.

Walk-in shower and modern toilet in a remodeled basement bathroom by CB Construction in Seattle
Mint green kitchen cabinets with brass hardware in a remodeled Seattle home by CB Construction
Spacious kitchen renovation by CB Construction in Seattle featuring grey cabinetry, a large island, and pendant lighting
Custom kitchen with large wood island and minimalist design, CB Construction, Seattle

Our Design-Build Process

1 | Consultation
We’ll meet to discuss your vision and provide a rough estimate based on similar projects. If everything feels right, we’ll move forward and start developing a detailed plan together.
2 | Pre-Construction
We’ll dive into the details, defining the scope, getting estimates, and creating a comprehensive plan with a finalized schedule and costs. If you’re happy with the plan, we’ll sign a contract and get ready to build.
3 | Construction
Once your deposit is received, construction begins, and we keep things tidy and on track with regular check-ins. At the end, we’ll do a final walk-through to make sure everything is perfect before wrapping up.

Our most popular home addition projects:

select_check_boxPrimary suite
select_check_boxGarage conversion
select_check_boxAttic expansion
select_check_boxKitchen expansion
select_check_boxExpanded living and dining area
select_check_boxSunroom
cb construction home remodeling cost guide in north seattle

Home Addition Cost Guide

Get ahead of your next project with an inside look at what it takes to transform your home. Download our comprehensive guide to confidently plan your remodel.

What you’ll get:

  • A breakdown of typical remodeling costs, so you know what to expect.
  • Expert tips for budgeting and avoiding costly surprises.
  • Insight into the best investments for boosting your home’s value.

Where We Work

We're proud to offer our knowledge, experience, and craft to the North Seattle area. Whether you're looking to remodel the home you love or create a custom home addition, we're here for you. Don't see your location on the list? Don't worry! Get in touch with us to find out if we work in your location.

Our Service Area

  • Seattle
  • Lake Forest Park
  • Shoreline
  • Ballard
  • Fremont
  • Wallingford
  • Wedgwood
  • Lake City
  • Ravenna
  • Greenwood
  • Laurelhurst
  • Green Lake
Exterior view of a remodeled ADU with large windows and open patio doors, by CB Construction in Seattle

What Our Clients Think

"CB Construction expanded our garage into a beautiful living space, blending seamlessly with our home’s style. Carl, Bob, and their team were attentive, transparent, and organized, with excellent subcontractors. We are grateful for the joyful space they’ve created for our family."

David & Jenny Hoffman

Glass-enclosed shower with white subway tile and niche in a Seattle bathroom, remodeled by CB Construction

What Our Clients Think

"Working with CB Construction on our bedroom and bathroom addition was a pleasure. Carl and Bob kept to the timeline, managed details, and delivered a functional, elegant space. Their subcontractors were efficient and respectful, even with our family living on-site during construction."

Champak & Leah

Bright basement kitchenette with modern cabinetry and sink in a Seattle remodel by CB Construction

What Our Clients Think

"CB Construction transformed my basement and replaced a failing foundation with responsiveness and professionalism. They were accommodating and informative throughout the process. I’d gladly work with them again."

Cathy Funk

Modern kitchen remodel in Seattle by CB Construction featuring grey cabinetry, white quartz countertops, and a large island with wood stools

What Our Clients Think

"CB Construction completed two major projects for us: an ADU and a full home remodel. Carl and Bob provided quality work, clear communication, and helpful cost-saving suggestions. We trusted them completely and didn’t even seek other bids for our second project."

Rich & Laura Watts

Sleek modern kitchen remodel with wood cabinetry and stainless steel appliances, CB Construction, Seattle

What Our Clients Think

"Carl, Bob, and their team bring thoughtfulness and integrity to every project, whether large or small. CB Construction’s clear process and beautiful results make them a pleasure to work with. We recommend them to everyone."

Kevin & Betsy Jones

Living room in a basement ADU remodel by CB Construction in Seattle, featuring modern furniture and large windows

What Our Clients Think

"Carl’s craftsmanship shone through in our Wallingford home remodel. CB Construction communicated regularly, stayed on budget, and delivered excellent results on time. We highly recommend them to friends and family."

Margaret Birdsall & Steve Bauck

Remodel Your Home or Create an Addition

CB Construction Is Here to Help You Get Started

Saying we love what we do is an understatement. Your home remodel or home addition is an important investment, and we know it. Let's partner up to reimagine your home and deliver the incredible project you deserve.