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    #1 Engineering Services In Folsom, CA

    Golden State Design & Engineering Services in Folsom, CA

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    Golden State Design & Engineering rated 4.9/5
    based on 5000 reviews.

    Comprehensive Engineering Services

    Simplify Your Project Journey

    There is a full spectrum of engineering services in Folsom, CA, designed to simplify your project journey. Our professionals deliver top-quality results so that your project is completed efficiently and effectively. We specialize in:

    With the help of these services, we eliminate the need for you to coordinate with multiple firms, streamlining your project management process.

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    Luxury Home

    Why Choose Golden State Design & Engineering?

    Your Partner in Success

    Choosing Golden State Design & Engineering means partnering with dedicated engineers who are committed to your success. We bring a wealth of experience and expertise to every project so that you receive the highest quality service.


    Our multidisciplinary team includes some of the most talented and experienced engineers, surveyors, and planners in the industry.


    We are committed to delivering top-quality results on every project, no matter how big or small.


    Our engineers operate with the highest level of integrity and professionalism, always putting your needs first.


    We leverage the latest technologies and solutions for outstanding results that stand the test of time.

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    Structural Engineering: Building Strong Foundations

    Precision in Every Detail

    Our structural engineering services are designed to ensure that your buildings and structures are safe, functional, and durable. We take pride in our meticulous attention to detail and our ability to develop innovative solutions that fulfill the requirements of each project. Whether you're looking for residential structural engineering or commercial structural engineering in Folsom, our team has the expertise to deliver outstanding results.

    What We Offer:
    • Foundations Plan in Folsom, CA
    • Floor Framming Plan in Folsom, CA
    • Roof Framing Plan in Folsom, CA
    • Shear Wall Plan in Folsom, CA
    • Retrofit Design in Folsom, CA
    • Truss Design & Review in Folsom, CA
    • Structural Load Calculations in Folsom, CA
    • Structural Detailing & Sectioning in Folsom, CA
    • Special Inspections in Folsom, CA

    Our structural engineering team works precisely with architects, contractors, and other stakeholders to make sure that every aspect of the project is executed to the highest point.

    Civil Engineering: Shaping the Built Environment

    Designing for Tomorrow

    In Folsom, our commercial and residential civil engineering in Folsom is at the heart of what we do. Our civil engineers are experts in designing and managing infrastructure projects that are both functional and sustainable. From roads and bridges to water supply systems and wastewater treatment facilities, we have the knowledge and experience to tackle projects of any size and complexity.

    What We Offer:
    • Grading Plans in Folsom, CA
    • Erosion Control Plans in Folsom, CA
    • Utility Design Plans in Folsom, CA
    • Fire Access Plans in Folsom, CA
    • Sewer Lower Lateral Plans in Folsom, CA
    • Drainage Plans in Folsom, CA
    • Street Improvement Plans in Folsom, CA

    By integrating the latest technologies, we create infrastructure solutions that meet the needs of today while planning for the demands of tomorrow.

    GoldenState Design & Engineering ADU Builders Proud to be Recognized by

    GC Magazine
    MAde in USA

    Land Surveying: Accurate Measurements for Accurate Results

    Precision Mapping and Measurement

    Accurate land surveying in Folsom, CA, is highly important to the success of any project. We uses state-of-the-art equipment and techniques to provide precise measurements and detailed maps that serve as the foundation for all planning and design efforts. We offer different surveying services tailored to meet the specific needs of your project.

    Surveying Services We Provide:
    • Topographic Surveys in Folsom, CA
    • Boundary Surveys in Folsom, CA
    • Construction Staking in Folsom, CA
    • Monumentation in Folsom, CA
    • FEMA Elevation Certificate in Folsom, CA

    With our expertise in land surveying, you can be confident that your project will be built on a solid foundation of accurate data and reliable measurements.

    Planning Services: Guiding Your Project from Start to Finish

    Strategic Planning for Success

    Our planning services in Folsom, CA, are designed to guide your project from initial concept through to completion. We work closely with you to create an all-inclusive plan that addresses all aspects of your project, from land use and zoning to environmental impact assessments and permitting.

    Key Planning Services:
    • Tentative Parcel Mapping in Folsom, CA
    • Final Parcel Mapping in Folsom, CA
    • Tentative Subdivision Mapping in Folsom, CA
    • Final Subdivision Mapping in Folsom, CA
    • Lot Line Adjustments in Folsom, CA
    • Lot Mergers in Folsom, CA
    • Zoning Changes in Folsom, CA
    • Plot Plans in Folsom, CA
    • Variances in Folsom, CA
    • Conditional Use Permits in Folsom, CA

    Our planners are adept at navigating complex regulatory environments and ensuring that your project complies with all relevant laws and regulations.

    Transform Your Vision into Reality

    At Golden State Design & Engineering, we are passionate about turning your vision into reality. Whether you're planning a new construction project, upgrading existing infrastructure, or planning a complex development, we have the expertise and resources to help you succeed.

    Contact us today to learn more about our comprehensive engineering services in Folsom, CA, and how we can help you achieve your project goals. Together, we can build a better future.

    Get Started Today

    GoldenState Design & Engineering Certifications


    INC. 5000 Ranking


    Accreditation with BBB


    Member of NARI


    Member of NKBA

    What Makes GoldenState Design & Engineering Unique



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


    We hold many awards and certifications in the industry.


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


    Professionally designed showroom with you in mind.


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


    Furniture-grade quality products at affordable prices.


    Our showroom carries the latest materials from trusted brands.


    Our materials are eco-friendly and green certified.


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

    Customer Reviews

    VlaDi P.
    VlaDi P.
    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
    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
    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
    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
    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
    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
    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
    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.
    William was easy to work with. He knows his trade well. Till next project guys! Thanks again.
    • 541310 Architectural Services &
    • 541330 Engineering Services
    DUNS NO:
    • 119132267
    • 8712 Architectural Services &
    • 8711 Engineering Services
    Cage #
    • 9R4L5
    • 81101500, 81101502, 81101505, 81101508, 81101526, 81101533, 81101522