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State Design & Engineering

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    #1 ADU Builder In Santa Rosa, CA

    Golden State ADU's California ADU Builder in Santa Rosa, CA

    Experience top-quality craftsmanship and exceptional service for a rejuvenating and luxurious secondary home. Contact us today!

    Golden State ADU's rated 4.9/5
    based on 5000 reviews.

    What is an ADU?

    An Accessory Dwelling Unit, often referred to as a “granny flat,” is a compact, self-contained living space that includes a kitchen, bedroom, and bathroom. ADUs are smaller than a typical single-family home and are situated on the same lot as the primary residence.

    Building an ADU in Santa Rosa

    The process of adding an ADU to your property in Santa Rosa begins with understanding the construction process, exploring design options, and selecting a reliable contractor. Here’s a guide to help you through the journey:

    Types of ADUs:
    • Detached ADUs: These independent units are separate from the main house, offering privacy and seclusion. They are particularly attractive for rental purposes due to their self-contained nature.
    • Attached ADUs: These units are connected to the main house and are ideal for accommodating elderly relatives or young family members. They also benefit from easier and less costly utility connections.
    • Garage Conversion: Converting an existing garage into an ADU is a cost-effective option. It leverages existing structures, making it a quicker and more affordable alternative to building a new unit from scratch.
    • In-House ADUs: By converting unused spaces within the house, such as a bedroom, attic, or basement, you can create functional ADUs that provide additional living space or accommodations for family members.
    Choosing an ADU Contractor in Santa Rosa

    Selecting a competent contractor is crucial for the success of your ADU project. Here are key factors to consider:

    • Experience: Look for a contractor with a proven track record in ADU construction. Review their portfolio to assess their skill and expertise.
    • Licensing and Permits: Ensure the contractor is licensed and compliant with local building regulations.
    • Turnkey Services: Choose a contractor who offers comprehensive services, including design, permit acquisition, and budgeting.
    • Transparency in Pricing: Opt for a builder who provides clear, upfront pricing to avoid unexpected costs.
    Benefits of Building an ADU

    Building an ADU can offer numerous advantages:

    • Added Space: Provides extra room for guests, personal offices, or other uses.
    • Variety of Uses: ADUs can serve as home gyms, art studios, or personal workstations.
    • Rental Potential: Ideal for generating rental income from students, families, or visitors.
    • Increased Property Value: Enhances the resale value of your home and offers additional income potential through renting.
    • Dedicated Workspace: Offers a quiet, separate area for work or hobbies.
    • Guest Accommodation: Provides privacy and comfort for guests.
    Golden State ADUs: Your Trusted ADU Builder

    Golden State ADUs stands out as a reputable firm in ADU construction. We offer:

    • Expert Consultation: Thorough consultations to understand your project needs.
    • Precise Estimates: Accurate cost estimates tailored to your property in Santa Rosa.
    • High-Quality Construction: Use of top-notch materials and adherence to best practices.
    • Turnkey Solutions: Comprehensive services from design to completion.

    Contact Golden State ADUs today to explore how an ADU can enhance your property and provide the space you need. Let us help you navigate the construction process and turn your vision into reality.

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      What Makes Golden State ADUs Unique Qualities

      BUILDING FOR YOU

      Our process is organized, streamlined and designed with you in mind.

      CERTIFICATIONS

      We hold many awards and certifications in the industry.

      BIGGER SAVINGS

      In-house team means vendor savings passed on to you.

      DESIGNER SHOWROOM

      Professionally designed showroom with you in mind.

      NO HIDDEN COSTS

      We provide detailed estimates showing you what you get for your money.

      SUPERIOR PRODUCT

      Furniture-grade quality products at affordable prices.

      TRUSTED SOURCES

      Our showroom carries the latest materials from trusted brands.

      ECO FRIENDLY

      Our materials are eco-friendly and green certified.

      NO PRESSURE SALES

      We want you to be confident in your decision, no pressure sales.
      What Client Says

      Customer Reviews

      VlaDi P.
      VlaDi P.
      2024-06-19
      Very detail oriented group of guys designing and engineering homes. Had my addition and an ADU as well as my customers projects engineered by Golden State Design & Engineering, great experience.
      Semir Avdic
      Semir Avdic
      2024-05-18
      Golden state design did the design and engineering for my custom home. From the start William and his team were beyond helpful. The plans were well thought out and easy to read. Throughout the project any questions I had, William made himself available to answer very promptly. In addition to this, Golden State took on several other projects for us, and the results were just as great. William prepared all of the paperwork, filed with the county and did any revisions the county needed. I am beyond happy with their service and would recommend them to anyone. I will be doing an ADU in the near future and I can’t wait to see what golden state design can help us come up with.
      Angel Raya Soto
      Angel Raya Soto
      2024-05-03
      Golden State Design and Engineering did a great job with the design and with the permit process for my ADU, I highly recommend this firm, very knowledgeable!
      Ilia Gotisan
      Ilia Gotisan
      2023-10-26
      It was an absolute great pleasure working with Golden State Design & Engineering on our custom home. Even though we were working in different states, their professionalism, quick responsiveness, and attention to every detail exceeded my expectations. William and his team took their quality time and effort to bring all of our dream home expectations into reality. Their envision is highly unique and impressive. Thank you to the Golden State Design & Engineering team for your service.
      Nicholas Beliy
      Nicholas Beliy
      2023-07-18
      Recently had the pleasure of working with Golden State on a restoration project, and I must say, they surpassed all my expectations. We hired them to handle the design, drafting, engineering, and permit acquisition, and their expertise and professionalism were truly outstanding. From the moment we brought Golden State on board, it was clear that we had made the right choice. Their team, led by William, displayed an impressive level of knowledge and skill throughout the entire project. Their attention to detail and commitment to excellence were evident in every aspect of their work. They took the time to understand the unique requirements of the restoration project and delivered a design that perfectly balanced modern functionality with the preservation of historical elements. Their ability to capture the vision of the project and translate it into a comprehensive plan set was truly impressive. They paid meticulous attention to every detail, ensuring that all specifications were accurately represented in the drawings. As well as addressing the structural challenges. One of the greatest advantages of working with Golden State was their ability to handle the often time-consuming and frustrating process of obtaining permits. They took charge of the permit acquisition process, liaising with the necessary authorities and ensuring that all documentation was submitted promptly and accurately. This saved us a significant amount of time and allowed us to focus on other aspects of the project. Throughout the project, William and Yasir were reliable and responsive points of contact. They maintained open lines of communication, keeping us informed of progress, addressing any concerns promptly, and providing valuable guidance and expert advice when needed. Their professionalism and dedication to client satisfaction were truly commendable. Thank you, Golden State Design and Engineering Firm, for your exceptional services!
      Jing Zhou
      Jing Zhou
      2023-07-15
      I hired William to design my ADU for me! They are very responsive and efficient! After we got the permit from the county, they are still willing to follow up if I need to make some changes to the permitted plans. And when my contractors have questions about the plans, they are willing to spend the time to discuss with my contractors. I really appreciate their help!!!
      stepan gorodnyy
      stepan gorodnyy
      2023-07-07
      I had the most incredible experience working with William and his team at (Golden State Design & Engineering), on our custom home. From their responsiveness and professional approach to their design and engineering skills, every aspect of the process exceeded my expectations. Their team's understanding and kindness made the collaboration smooth and enjoyable. There informative guidance and attention to detail truly set them apart, and I most definitely would recommend their services to anyone in need of residential design and engineering expertise.
      Alek Davis
      Alek Davis
      2023-04-23
      William built an ADU in my backyard. He handled everything from planning and getting permits to construction (only the original home plan was my idea). Some jobs (foundation, roof, HVAC, electrical, stucco, etc.) were done by subcontractors, but William was closely monitoring the work during all phases and his team did a lot of hands on jobs (site preparation, framing, insulation, interior, cabinets, painting, etc.) as well. In a few instances, William came up with the solutions that saved me thousands (he figured out how to set up electrical without having to add a new panel, chose the optimal option for solar, etc.). I'm very happy with the end result and would not hesitate to recommend William and his company for any type of construction or remodeling jobs.
      Elite Auto Imports Inc.
      Elite Auto Imports Inc.
      2022-10-29
      William was easy to work with. He knows his trade well. Till next project guys! Thanks again.
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