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Home Additions in Tacoma & the Eastside
Expand your Tacoma or Eastside home with a custom addition designed for your family’s needs. From extra bedrooms and bathrooms to bonus rooms, second-floor expansions, or basement conversions, our team creates functional, beautiful spaces that blend seamlessly with your home.
Why a Custom Home Addition is the Perfect Solution for Your Growing Family
Your home is the place you can retreat to after a long day, a safe place to gather with those you love. It’s the place where you can invite people in and spend time together, where your sweetest memories are held. At Massey Remodel + Design, we understand the importance of the place you call home. And we’re here to help you make it better.
You love your neighborhood, your commute, your schools, and your community, but your house isn’t quite working for you the way you need it to. Building an addition might be exactly what you need. An addition can completely transform the way you live in your home. If your family is growing, your needs are changing, or you just want a little more space to spread out, a home addition might be the right move for you. Whatever your family needs to make your space more comfortable, we can help. We can give you the room to grow—and blend the new space so seamlessly into the existing home that it looks like it was there from the beginning.
Types of Home Additions We Specialize in
Popular Home Addition Options in Tacoma & the Eastside
Second Floor Additions
Add a second story to your home for extra bedrooms, offices, or living areas, increasing space and value without moving from your neighborhood.
GARAGE CONVERSIONS
Turn your garage into a livable space like a family room, office, or guest suite, adding comfort and value without building a full addition.
Basement Conversions
Transform your underused basement into a functional living area, guest suite, or home office while maximizing your home’s square footage.
Tacoma Kitchen Expansions
Expand your kitchen to create a bright, functional space for cooking, entertaining, and making lasting family memories in your Tacoma home.
Adding a bathroom
Install a new bathroom to improve convenience, comfort, and resale value—perfect for growing families or enhancing your home’s functionality.
Bonus Rooms
Create a versatile bonus room for a playroom, home office, or media space, giving your family the extra space they need to thrive.
Tacoma & the Eastside’s Go-To Home Addition Contractor
How to Choose the Right Contractor for Your Home Addition
Selecting the right contractor is one of the most important steps in planning a home addition. You want a team that understands your vision, respects your timeline, and delivers quality results. Look for a contractor who:
Provides clear communication and detailed project timelines.
Offers transparent pricing and manages permits and inspections.
Can blend new spaces seamlessly with your existing home.
Stands behind their work with warranties and craftsmanship guarantees.
At Massey Remodel + Design, we guide you through every step of the process—from initial design concepts to the final walkthrough—ensuring your addition meets your lifestyle, needs, and budget.
Why Homeowners Build Custom Home Additions
An addition will give you more space to be with those you love. Whether you need a larger gathering space (like an expanded kitchen) or a place to host (a guest room or suite), our team will listen to your goals and come up with great solutions for your home.
Maybe you need space to retreat—to work or play. Adding a home office can make remote work more enjoyable and give you quiet when you need it. Or maybe it’s a home gym or a hobby room that you’re dreaming of. Whatever you need, a home addition might be the solution.
An addition can give your home a more functional layout. By strategically adding more square footage to the home, you can open up a cramped area and give it the feeling of being more spacious. Your home is just that: your home. And if it’s not functioning well for you and your loved ones, you can change how you use the rooms by adding on where you need it most.
A Tacoma home addition will raise your home’s value. By increasing your square footage, adding a bedroom or bathroom, changing the layout of your home, updating the amenities, and even enhancing curb appeal, a well-designed addition can make your home worth more—to you now and to future buyers if you ever decide to sell.
As your home addition designer and builder, we begin by getting clear on your wants and needs. Our goal is to make your home work better for you. We spend time talking with you and understanding your vision. Then we use our expertise to make it a reality.
We work collaboratively with you to come up with floor plan options that seamlessly integrate your addition (you’ll wonder what you ever did without it!) and we bring them to life for you using 3D models. Then we walk you through the selection process, helping you choose fixtures, flooring, paint colors, and more. Our designers help you with each step of the process, ensuring that you are confident and satisfied with your choices.
When you choose us to design and build your Tacoma home addition, we walk you through every step of the process. It’s a collaborative, creative, personalized approach that brings together both your needs and wants, and our skill and craftsmanship. And the first step is our Free Remodel Consultation.
During this conversation, we will get a feel for what you want your home addition to be for your family. We talk through some logistics and ask questions. But mostly we listen to you—because you, the homeowner, are the one whose thoughts matter most.
And then, after the planning is complete, it’s time to start the building process. Our team communicates with you consistently so you always know what to expect. Your project manager and designer manage all aspects of the project and keep you in the loop. And you have access to an online project portal that gives you all the information you want about your home remodel, all in one place.
At Massey Remodel + Design, we care about your home. We know how important it is to you and your family. And we go the extra mile in design, communication, problem solving, construction, and more to make sure your home addition is everything you want it to be. Your home should support you and those you love, and if a home addition is the best way to make that happen, we’re here for you.
What Goes into an Addition?
Full Service Design + Build Contractor for Custom Home Additions
Home Additions FAQ
Frequently Asked Custom Home Addition Questions
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The timeline for a home addition varies based on the size of the project and your city’s permitting requirements. On average, the planning and permitting phase takes 3–4 months, while construction typically takes another 4–6 months. Most projects are completed within 7–10 months from start to finish.
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Absolutely. Both Tacoma and Eastside cities require permits for structural additions, and each jurisdiction has its own rules. Tacoma homes often face additional requirements due to historic overlays, while Eastside cities like Bellevue or Kirkland may have strict setback and height limitations. As your contractor, we handle all permitting and engineering, so you don’t have to navigate city codes on your own.
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The key is design integration. Our in-house designer studies the existing architecture, rooflines, siding, and finishes to create a plan that feels like it was always part of your home. Whether it’s matching Tacoma’s craftsman details or tying into the clean lines of a modern Bellevue build, we focus on blending old and new. Inside, we use carefully chosen materials and layouts so the transition from existing space to new space is virtually invisible.
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Look for a design-build contractor with experience in both Tacoma and the Eastside. That means a team that can design your addition, navigate local permitting, and build with precision—all under one roof. At Massey Remodel + Design, we also provide fixed-price contracts, 3-year craftsmanship warranties, and guidance through every step of the process, so you can move forward with confidence.
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Home additions vary based on size, complexity, and finishes, but most projects fall into three categories:
Basic Additions — $200K+
Single-story expansion with standard finishes. Includes slab-on-grade foundation, vinyl siding/windows, asphalt shingles, drywall, flooring, insulation, paint, and basic electrical/HVAC.
Midrange Additions — $300K+
Everything in a basic build plus interior partitions, upgraded window/door details, fireplaces, vaulted ceilings, and the option to add a kitchen or bathroom.
Custom Additions — $350K+
Multi-level or highly tailored designs. Includes luxury finishes like wood or masonry siding, architectural beams, wallpaper, upgraded mechanical systems, and specialty fixtures or appliances.
Every addition is unique, and our design-build process ensures you get a clear scope of work and fixed-price contract before construction begins.
Let's Talk About Your
Home Addition
Our team will guide you through the exciting journey of remodeling your home. With our expertise and personalized approach, we'll work closely with you to craft a space that reflects your lifestyle and exceeds your expectations.
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