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Home Additions Services in Woodinville, Washington

Expanding Your Home with Expertise and Precision

For homeowners in Woodinville, Washington, and surrounding areas, including Bothell, Kingsgate, Kenmore, North Creek, and Lake Forest Park, Rich Design & Build brings 20 years of experience in creating seamless home additions that enhance living spaces while maintaining architectural integrity. Whether you’re looking to add a new bedroom, expand your kitchen, or build a functional office, our team delivers personalized solutions tailored to meet your lifestyle and long-term needs. Our local expertise allows us to design additions that complement your property and align with Woodinville’s architectural standards.


Understanding the unique style and character of homes in King County, we ensure that every addition we undertake blends perfectly with the existing structure. From concept to completion, our design-build process emphasizes both aesthetic appeal and practical functionality, making certain that your new space serves its purpose efficiently. Whether your goal is to increase home value, improve family comfort, or create space for new activities, we prioritize your vision while applying proven construction practices and high-quality materials.


Our approach to home additions combines creativity with precision. We work closely with clients throughout every phase, from initial planning and permitting to the final touches of construction. By focusing on personalized design, energy efficiency, and long-lasting craftsmanship, we ensure that every project not only enhances your home but also provides lasting value. Partnering with Rich Design & Build means investing in a home addition that truly elevates your living experience in Woodinville and its surrounding communities.

Free Estimate!

For the fastest reply, call or text us 24/7 at 253-486-7626

Free Estimate!

For the fastest reply, call or text us 24/7 at 253-486-7626

Contact Us

Our Home Addition Services

  • Room Extensions

    We specialize in expanding your living areas to accommodate growing families or changing lifestyles. Our team carefully plans room extensions to integrate seamlessly with your home’s design, ensuring natural flow, optimal lighting, and structural integrity. From initial concept to finished construction, we handle every detail to create functional and stylish spaces that meet your unique requirements while preserving the character of your home.

  • Second-Story Additions

    We provide expertly designed second-story additions that enhance both space and property value. By carefully assessing your existing structure, we create additions that complement your home’s architecture while providing additional bedrooms, offices, or recreational areas. Our team ensures minimal disruption during construction while delivering precise, high-quality results that improve your living experience.

  • Garage Conversions

    Transforming underutilized garages into livable spaces is one of our specialties. We convert garages into functional rooms, including offices, family rooms, or guest suites. Our comprehensive approach encompasses insulation, flooring, electrical upgrades, and custom finishes to create a comfortable and usable space that adds versatility to your home.

  • Sunroom Additions

    Our sunroom additions bring natural light and outdoor ambiance into your home year-round. We design sunrooms that are energy-efficient, visually appealing, and perfectly suited for relaxation or entertainment. From framing and windows to flooring and finishes, our team ensures a seamless integration with your existing home, enhancing both aesthetics and lifestyle.

  • Kitchen Extensions

    We expand kitchen spaces to improve functionality, storage, and overall flow. By integrating additional counter space, cabinets, and modern layouts, our kitchen extensions transform daily routines into efficient, enjoyable experiences. Every detail, from structural planning to finishing touches, is managed to ensure a high-quality, lasting result.

  • Master Suite Additions

    Our master suite additions provide luxurious private retreats tailored to your lifestyle. From spacious bedrooms to walk-in closets and spa-inspired bathrooms, we create suites that blend comfort and functionality. Careful design ensures seamless integration with your home while maximizing both space and aesthetic appeal.

Benefits of Professional Home Additions

Increased Property Value

A well-designed home addition can significantly boost the overall property value. By adding functional space and improving architectural appeal, homeowners enjoy higher resale potential. Professional construction ensures that the addition is both durable and visually appealing, aligning with market expectations and making the investment practical and financially rewarding.

Enhanced Living Space

Home additions provide more room for family activities, hobbies, or work-from-home setups. Professionally expanding a home ensures that the new areas are functional, cohesive, and comfortable. Thoughtful design and high-quality construction result in spaces that integrate seamlessly with existing rooms for enhanced daily living.

Customized Design Solutions

Professional home additions offer the flexibility to tailor every aspect of the space. Customized layouts, finishes, and structural features ensure that the addition meets specific lifestyle needs while complementing the home’s aesthetic. This personalized approach yields a harmonious and fully functional living environment.

Energy Efficiency

Modern home additions incorporate energy-efficient designs and materials. Proper insulation, high-performance windows, and sustainable construction practices help reduce utility costs while minimizing environmental impact. Energy-efficient additions ensure comfort, cost savings, and long-term sustainability for the homeowner.

Improved Functionality

Professional additions focus on optimizing space utilization. Smart design ensures smooth traffic flow, proper storage solutions, and practical room layouts. Enhancing functionality enables homeowners to enjoy more organized, convenient, and efficient living spaces tailored to their daily routines.

Long-Term Durability

Quality construction ensures that home additions stand the test of time. Using premium materials, skilled craftsmanship, and proven building techniques, professionally built additions are structurally sound, weather-resistant, and require minimal maintenance, providing long-lasting comfort and reliability.

Testimonials


See What Our Customers Are Saying!

High-Quality Home Additions That Stand the Test of Time 

Rich Design & Build in Woodinville, Washington, has been transforming homes for 20 years, serving the Woodinville area and nearby communities, including Kirkland, Redmond, Mountlake Terrace, Alderwood Manor, and Martha Lake. Our home additions combine thoughtful design, quality construction, and personalized service, creating spaces that enrich daily life and increase property value. Our team approaches each project with precision and creativity, ensuring that your home addition complements the existing structure while meeting your unique needs. From initial design consultation to final inspection, every step is managed with professionalism, attention to detail, and a commitment to exceeding expectations. By choosing Rich Design & Build, you invest in a home that reflects your vision, enhances comfort, and provides lasting value for your family. Transform your home with confidence, knowing that our local expertise, 20 years of experience, and dedication to quality construction deliver outstanding results for homeowners across Woodinville and its surrounding communities.

Frequently Asked Questions

  • How long does a typical home addition project take?

    Project duration depends on the type and scale of the addition. Most projects span several weeks to a few months, encompassing planning, permitting, and construction. Our team manages timelines efficiently while ensuring high-quality results and minimal disruption to your daily life.

  • What is the average cost of a home addition in Woodinville, Washington?

    Costs vary depending on design, materials, and size. On average, home additions in Woodinville and surrounding areas fall within a competitive price range. Rich Design & Build provides detailed estimates and transparent pricing to help homeowners make informed financial decisions.

  • Can you add a second story to an existing home?

    Yes, we specialize in second-story additions. Our experts evaluate the current structure for load-bearing capacity and design a seamless expansion. Homeowners in Woodinville, Bothell, and nearby areas can trust our experience to create additional space without compromising architectural integrity.

  • Do you handle permits for home additions?

    Absolutely. We manage all necessary permits, inspections, and approvals required in King County. This ensures the addition complies with local building codes, safety regulations, and zoning laws, making the process seamless and stress-free for homeowners.

  • Can a garage be converted into a living space?

    Yes, our team can convert garages into functional rooms such as offices, bedrooms, or family areas. We handle insulation, flooring, electrical work, and finishes to create a comfortable, usable space. Homeowners in Woodinville and surrounding communities benefit from professional conversions.

  • Are your home additions energy-efficient?

    Yes, we prioritize energy efficiency in every project. We use sustainable materials, proper insulation, and energy-saving fixtures. This approach reduces utility costs, increases comfort, and supports environmentally responsible construction in Woodinville and the King County region.

  • How do you ensure additions blend with the existing home design?

    Our designers analyze architectural style, materials, and layout to create cohesive additions. Every detail is planned to complement the current structure. Rich Design & Build ensures that expansions enhance both functionality and aesthetics while maintaining harmony with the original home.


  • What areas do you serve for home additions?

    Rich Design & Build serves Woodinville, Washington, and surrounding areas, including Bothell, Kingsgate, Kenmore, North Creek, and Lake Forest Park. Our local expertise ensures that each addition meets regional building standards and suits the unique style of homes across King County.

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