At Eastside Builders Group, we specialize in creating high-quality home additions and Accessory Dwelling Units (ADUs) that enhance your lifestyle and boost property value. Whether you're looking to convert an underutilized garage into a stylish ADU, build a Detached ADU (DADU) in your backyard, or expand your living space with a seamless home addition, our expert team delivers innovative design and superior craftsmanship from concept to completion. ADUs and additions aren’t just about square footage—they’re smart, long-term investments. From multigenerational living to rental income opportunities, we design spaces that are fully functional, beautifully integrated, and tailored to your property. In cities like Kirkland, Bellevue, and Seattle, certain DADUs can even be individually metered and sold separately, adding major value to your home. With a deep understanding of local zoning codes and pre-approved city programs, we’ll guide you through every step—from feasibility and permitting to final construction. Whether your goal is passive income, guest accommodations, or simply more room to grow, Eastside Builders Group is here to bring your vision to life.
EVERY DREAM HOME HAS A BEGINNING
Building a second-story addition is one of the most impactful ways to increase your home’s square footage without losing yard space. Whether you're adding bedrooms, a home office, or a new master suite, second-story additions significantly increase your home's resale value, especially in high-demand areas like Kirkland, WA.
On average, second-story additions cost between $200–$350 per square foot, with construction timelines typically ranging from 4 to 6 months, depending on design complexity and permitting.
Aside from adding usable living space, these additions boost property value, support multi-generational living, and offer a cost-effective alternative to moving into a larger home.
SECOND STORY &
HOME ADDITIONS
ADU ADDITIONS
An Accessory Dwelling Unit (ADU) is a self-contained living space within or attached to your home, commonly built as garage conversions, basement apartments, or attached suites. Ideal for rental income, in-law accommodations, or guest quarters, an ADU offers homeowners incredible versatility and long-term financial benefits.
The average cost of an ADU ranges from $150,000 to $250,000, depending on size and location within the home. Construction typically takes 4 to 6 months, including design, permitting, and buildout.
In many areas, including Kirkland, Bellevue, and Seattle, ADUs are legally rentable, making them a great way to generate passive income or support family members while increasing overall property value and flexibility.
(Attached or Garage Conversions)
BUMP-OUT
ADDITIONS
Bump-out additions are compact extensions that add a few extra feet to a targeted area of your home, most commonly the kitchen or primary bedroom. This small-scale solution can dramatically improve flow, functionality, and livability, without the full cost of a large addition.
On average, bump-outs cost between $40,000 and $85,000, with construction taking 2 to 3 months. Bump-outs are ideal for homeowners who need “just a little more space” without altering the entire home’s footprint.
Whether it’s a kitchen expansion for a larger island and extra cabinetry, or a master suite bump-out to add a walk-in closet or reading nook, this addition boosts both your daily comfort and resale value in a cost-effective way.
Consultation
Your journey begins with a 30-minute personal consultation, where our designer takes the time to understand your goals, lifestyle, and design preferences. Following this, we’ll schedule a session with our measuring team to conduct a 3D scan of your home, ensuring precise measurements for the next steps in your design process.
Mood Boards & 2D Space Plans
Once we receive and process the measurements, we’ll move forward with designing your personalized space plan. This stage begins with curated mood boards that reflect your unique style, followed by the development of space plans to establish the overall design direction. This will then be uploaded to your personal dashboard and sent out for review.
3D Renderings
Once the floor plans are completed & sent off for permitting, we transition to the 3D rendering stage. During this phase, as we wait for your permits, we begin designing your space in a 3D model, keeping your budget in mind. Any additional concepts not included in the initial plan will be communicated to ensure transparency. This stage allows us to explore and refine design ideas while maintaining consistency throughout the process.
Presentation & Rough Material Selection
Once the 3D model and material selections are complete, we’ll schedule an in-person presentation at our showroom. Your designer will guide you through the renderings, samples, and material selection to ensure everything aligns with your vision.
Material Selection (FF&E)
At this stage, we begin finalizing the sections of fixtures, finishes, and equipment (FF&E) based on your specified budget. These selections will be submitted for your review through your personal dashboard, where you can easily access, approve, or request revisions to each item. This phase is essential in bringing your design vision to life, as it ensures that every detail, from plumbing fixtures and lighting to flooring and hardware, aligns with your aesthetic and functional needs. Additional visits to the showroom are encouraged to see the final materials in person.
Construction
At this stage, we begin finalizing the sections of fixtures, finishes, and equipment (FF&E) based on your specified budget. These selections will be submitted for your review through your personal dashboard, where you can easily access, approve, or request revisions to each item. This phase is essential in bringing your design vision to life, as it ensures that every detail, from plumbing fixtures and lighting to flooring and hardware, aligns with your aesthetic and functional needs. Additional visits to the showroom are encouraged to see the final materials in person.
Final Walkthrough
At this stage, we begin finalizing the sections of fixtures, finishes, and equipment (FF&E) based on your specified budget. These selections will be submitted for your review through your personal dashboard, where you can easily access, approve, or request revisions to each item. This phase is essential in bringing your design vision to life, as it ensures that every detail, from plumbing fixtures and lighting to flooring and hardware, aligns with your aesthetic and functional needs. Additional visits to the showroom are encouraged to see the final materials in person.
Photographs
Once your project is complete and meets our high standards, we will coordinate a convenient time and date for our photographers and designer to stage your home. During this session, the designer will ensure that every space is styled to highlight its best features, while the photographer captures stunning, professional images that showcase your design in its full glory. These images will serve as a lasting representation of your vision, perfect for marketing, portfolio, and personal use.
WE UNDERSTAND,
YOUR HARD-EARNED MONEY REQUIRES A HARD-WORKING TEAM
AT EASTSIDE BUILDERS GROUP YOUR VISION COMES FIRST.
At Eastside Builders Group, we’re proud to serve Kirkland, WA, and surrounding areas with expert craftsmanship, transparent pricing, and a commitment to bringing your vision to life. Whether you're planning a kitchen remodel, bathroom renovation, home addition, or a custom new build, our design-build team is here to guide you every step of the way. Ready to get started? Contact us today for a free consultation and discover why Eastside Builders Group is one of the most trusted names in residential construction on the Eastside.