ADU Unit & Addition Contractor in Bellevue, Seattle

Choose a Reputable Local Contractor for Your Next Project

  • Home addition contractor Seattle

  • Garage Conversion ADU

  • Detached ADU Unit

    • Basement Apartment ADU

    • Attached ADU Unit

      Bellevue Addition Contractor

      Increase the value of  your property with BLC Remodeling's ADU (Accessory Dwelling Unit) services. Operating in compliance with Seattle's housing laws, we specialize in both attached and detached ADU units, allowing you greater flexibility in maximizing your property value and functional space. Whether you're looking to create an additional income stream or need extra living space for family, our experienced team will guide you through the entire process—from design to completion. Transform your property into a multi-functional space with BLC Remodeling ADU Units Contractor.




      Premium Quality, Affordable Approach: We deliver high quality home addition remodeling results from start to finish, ensuring your budget accommodates high-quality materials for long-lasting and impressive transformations. 

      Let's Talk About Your Project

      At BLC Remodeling & New Construction Contractor, we understand the impact of having more space for your family - to gather, enjoy privacy, pursue hobbies, and increase your property value. We treat your home with the same care, attention to detail, and respect as we would our own, ensuring a seamless and stress-free experience.

      Our all-inclusive construction services take your project from concept to completion, guided by a team of experienced professionals. We'll get to know your preferences and budget, making recommendations that align perfectly with your needs. When we're done, your home addition will blend seamlessly with your existing home, making you wonder how you have ever lived without it!

      We collaborate with you to create a plan for your home addition while our construction crew works safely and efficiently, keeping you informed throughout the process. With years of experience in Addition Construction in Bellevue and the greater Seattle area, we specialize in home additions, whole-home remodeling,  kitchen, outdoor, and bathroom renovations.

      Whether you're looking for a full-scale addition, detached or attached ADU Unit, sunroom, guest suite, or garage conversion, we have the experience to make it happen.

      Reliable Expertise You Can Trust. Over 15 Years of experience!

      As a fully licensed, insured, and bonded contractor, our experience covers a diverse range of projects, and we can assist with the following:

      • Expanding living spaces for growing families
      • Designing home offices, workout spaces, and creative rooms
      • Crafting in-law suites, wet bars, game rooms, and personal retreats
      • Building attached or detached garages
      • Tackling projects from straightforward bump-outs to intricate second-story additions and all the variations in between.

      Addition Construction Services: Expand Your Living Space with Seamless Integration

      Here's what we offer and what we are really good at:

      • Guest Suite Additions: Create welcoming spaces for friends and family to stay, tailored to your needs and preferences.
      • Garage Conversions & New Construction: Transform your garage into a functional, stylish space, or build a new custom area.
      • Sunroom Additions: Enjoy the outdoors from the comfort of your home with a beautiful sunroom addition.
      • ADU Units: Detached or attached to the existing building, they offer flexibility and versatility in expanding living space without the need for major property modifications.

      Choose an experienced and local company for all your additional construction needs, and let us help you create the perfect space to suit your lifestyle.

      Contact Us! We'll be in touch shortly.

        OUR WORK

        Take a look at some of our beautifully built homes and living spaces. We cover the full range of custom home construction and remodeling.


        The most common home addition renovations and new constructions - ADU units include:

        1. Room Additions: Expanding the existing living space by adding new rooms or extending existing ones, such as bedrooms, living rooms, or dining areas.
        2. Second-Floor Additions: Adding an entire level to a single-story home or expanding the upper floor of an existing multi-story home.
        3. Sunrooms: Constructing a sunroom or solarium, typically featuring large windows and designed for relaxation or entertainment while enjoying natural light and views.
        4. Guest Suites: Creating dedicated spaces for guests, often including a bedroom, bathroom, and sometimes a small kitchenette or living area.
        5. Garage Conversions - Attached ADU Unit: Transforming a garage into a functional living space, such as a bedroom, office, or family room.
        6. In-law Suites: Building an independent living area for aging parents or extended family members, typically with a bedroom, bathroom, kitchen, and living space.
        7. Bump-Outs: Small-scale expansions that "bump out" an existing room, providing additional square footage for a specific area, such as a kitchen or bathroom.
        8. Home Office Additions: Designing and constructing a dedicated workspace within the home, either as a separate room or by repurposing an existing space.
        9. Basement Conversions: Renovating and finishing a basement to create functional living areas, such as a family room, home theater, or gym.
        10. Deck and Porch Additions: Constructing or expanding outdoor living spaces, such as decks, patios, or porches, to enhance the home's exterior and provide additional entertainment areas.

        These additions and renovations can significantly improve a home's functionality, comfort, and value, making it more suitable for the homeowner's needs and preferences.

        Choose BLC Remodeling, your local Bellevue Addition Contractor, for premium construction services on time and within budget.



          Do you have a questions?

          Serving the greater Seattle area and beyond. For more information on our services, or to inquire about a future project, give us a call!

          Our address

          12819 SE 38th St, Bellevue, WA 98006




          Cassandra Lee
          Cassandra Lee
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          We've hired BLC Remodeling for 2 separate projects and would highly recommend reaching out to them for your next home project. Overall, they were a pleasure to work with and were very attentive throughout the whole process. They understood our vision for both remodels and executed them beautifully. The first project was a complete gut of our main floor that included kitchen, dining and living room. They leveled out a sunken living room floor and moved our entire kitchen to fit our dream kitchen island. The crew worked on this massive project while we stayed at a separate location. We were impressed by their communication while we were remote and their adaptability with the supply chain issues to meet our project deadline without sacrificing quality. We hired BLC recently to remodel our laundry/half bath. They once again helped reconfigure the layout to make the space more functional and fit a new shower. This modernized bathroom has become the favorite of the house. Photos are the before and after (prior to shower glass install). We are absolutely delighted by the transformations they've done and plan on contacting them again for future project.
          Nicolae Voiteac
          Nicolae Voiteac
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          Irina Bugariu
          Irina Bugariu
          Trustindex verifies that the original source of the review is Google.
          BLC remodeling exceeded all expectations with their masterful remodel of my bathroom. Bogdan and his team’s professionalism and attention to detail were unparalleled, making the entire process smooth and stress-free. From start to finish, they exhibited expertise and creativity, resulting in a stunning, functional space that surpassed my wildest dreams. I highly recommend BLC Remodeling for anyone seeking top-notch luxury remodeling services!
          Oana Bugariu
          Oana Bugariu
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          5 stars isn't enough for the incredible work that BLC Remodeling did on our home remodel! From the initial consultation with Bogdan (the owner) to the final walk-through, their team exceeded our expectations in every way. The attention to detail, the quality of craftsmanship, and the dedication to delivering a top-notch result were truly impressive. The kitchen and bathrooms are absolute showstoppers! The master bath is now my happy place - I never want to leave! The way they transformed the space, incorporating our style and preferences, is nothing short of magic. Their team is professional, courteous, and communicative throughout the entire process. They made what could have been a stressful experience into an enjoyable one. If you're considering a home remodel, look no further. Their passion for their work shines through in every aspect of the project. We feel so lucky to have had them by our side, and we can't wait to enjoy our beautiful new home for years to come!
          Karen Allison
          Karen Allison
          Trustindex verifies that the original source of the review is Google.
          Working with BLC Remodeling was truly a pleasure! They updated my kitchen and powder room in November and everything is perfect. They provided guidance, advice and long hours of hard work to create a functional, sensible and beautiful kitchen. BLC Remodeling is a very professional company with kind, caring and detail oriented people. It was a pleasure to have them in my home. Thanks guys!!
          Matt Compston
          Matt Compston
          Trustindex verifies that the original source of the review is Google.
          Absolutely incredible experience with Bogdan and BLC Remodeling! They completed remodeling of three and a half baths for us. Top quality craftsmanship, delivered all work on time, highly responsive and communicative, and the crew was a pleasure to have around! Helpful beginning to end in all steps of process. THANK YOU! We will only be calling them for all future work!
          Julie Krueger
          Julie Krueger
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          Bogdan and his crew are the BEST!! Skilled craftsmen, trusted, professional and knowledgeable. I had two bathrooms renovated at a condo unit. One had to be completely gutted due to an old leak - so they remediated the water damage, reframed where needed and transitioned the bathroom from a tub/shower combo to a walk-in shower. Their workmanship, expertise and attention to detail is fantastic. I greatly appreciated all the communication and photos during the demolition phase so we could confer immediately on decisions based on what was uncovered because of the water damage and then the crew could continue with their progress. They were willing to work within my budget on both bathrooms and offered solutions and different options that worked to accomplish the overall remodeling goals. And a huge bonus, when I sought guidance on some side projects outside of the bathroom remodels (construction projects in the kitchen and living room), they accommodated without hesitation to add to their schedule while they were on-site. I highly recommend Bogdan and his crew. In fact, I'm looking for additional projects so I get the opportunity to work with them again.
          Matt Lundquist
          Matt Lundquist
          Trustindex verifies that the original source of the review is Google.
          We’ve used BLC Remodeling for 3 different projects, the most recent of which was a remodel of our kitchen and two bathrooms. Bogdan and crew are extremely knowledgeable, meticulous, professional, experienced and they go above and beyond to ensure that every last detail is perfect and that their customers are satisfied. We could not have been happier with the outcome of our project which included extensive tile work on the kitchen backsplash and on both bathrooms’ floors and walls, kitchen cabinet refinishing from stained wood to white painted (which made the cabinets look brand new), installation of new vanities, tub, shower and all other bathroom fixtures as well as some additional exterior work including replacing siding and trim. They walked us through every step in the process, offered great recommendations, and ensured we were involved in all decisions. They’re polite, respectful, passionate about their work, and just a nice, fun group to be around. We’d recommend BLC Remodeling for any remodel needs. They’ve handled all of our projects in a professional, caring and comprehensive way. Thank you, Bogdan and crew!
          John Martin
          John Martin
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          Our neighbors recommended BLC Remodeling so we knew we would be getting quality workmanship. Bogdan and his team surpassed all expectations. They were professional and caring and answered all our questions. I would give them a 10 star rating if I could. Our bathroom was transformed into exactly what we had wished for. The tile work is perfect. The new shower and tub are beautiful. Their work was impeccable and they finished on time. They cleaned up the site at the end of each day and went over and above in every aspect of the entire project. I would highly recommend BLC Remodeling for any remodeling project.
          Neha Singh
          Neha Singh
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          We had a great experience working with John and Ben on our bathroom remodeling! They were very accommodating, listened to our concerns and got the work done on time. The quality of the work done was great! They are responsive and quick to return calls/messages. They work with you to figure out how to resolve any issues that come up throughout the project and we really appreciated them helping walk us through some critical decisions. We found a small issue after the renovation was complete and they promptly came to look into it and fix it!