Welcome! Derivi Castellanos Architects (DCA) is proud to celebrate more than 35 years of serving California statewide. Established in 1979 by Steve Castellanos and Linda Derivi, our firm’s enviable reputation is built on years of being responsive to clients’ needs, bringing an exceptional team to every project, delivering high-quality design solutions, and focusing on providing the best customer service possible.
DCA has designed hundreds of projects in a variety of market sectors across the state. Our seasoned professionals bring many years of combined experience, delivering successful architecture and project management services for education (K-12 and community colleges), healthcare, commercial, institutional, and religious facilities. We are well versed in 21st century architecture and building requirements, with LEED accredited professionals who are experts in sustainability.
We offer a solid leadership team with diverse backgrounds and expertise. Steve Castellanos, Founding Partner, served as the California State Architect from 2000-2005, where he developed key relationships in the industry and a strong understanding of the state process. Managing partner, Juan G. Barroso, brings extensive design-build experience and cost management skills.
Together, our unique relationships with state agencies and our network of building professionals have become a tremendous asset for our clients’ projects. We love what we do and look forward to seeing how DCA’s services can benefit you!
As the Founding Partner of DCA, Steve Castellanos provides senior leadership to the firm. He has more than 40 years of industry experience, is a highly-respected professional in California architecture, and is an expert on educational projects. After 40 years in practice and hundreds of successful K-12 projects to his credit, Steve was selected as State Architect, where he led the Division of State Architect (DSA) from 2000-2005. During this time, he worked to streamline the organization and improve its attention to the needs of its constituent school districts. Steve also made incredible progress in moving public construction in California towards Integrated Project Delivery and high-performing building standards.
As Managing Partner for DCA, Juan Barroso brings more than 18 years of professional experience and a strong background in civil engineering, city planning and business management. He is highly skilled in the areas of cost estimating, value engineering and design management, and has worked on complex projects ranging from water/wastewater design and high-tech manufacturing facilities, to commercial offices and educational buildings. For the past 10 years, Juan has focused primarily on public K-12 education design/construction, and has been involved in more than 200 successful projects. Clients describe Juan as a talented and dedicated professional who is deeply committed to their success.
Craig Scott, Principal Architect, holds a leadership role at DCA and has more than 25 years of professional experience. His attention to detail and focus on teamwork results in smooth-running projects. Craig has a robust education portfolio that includes modernization, HVAC, sitework, and new buildings. He is known as a good listener who is committed to delivering excellent customer service. On every project, Craig looks for opportunities to build good rapport with all team members.
Christina Frankel, Principal Architect, has more than 25 years of professional experience and serves on the leadership team at DCA. Her attention to detail and focus on quality control result in successful projects with low change order rates. Christina has a varied portfolio that includes multi-family housing, commercial buildings and education facilities. On every project, she looks for opportunities to incorporate sustainable components without increasing project cost. As part of her sustainability advocacy, she is a columnist for The Tracy Press, writing on issues related to the environment, energy efficiency and green building design in schools.
As a Principal Architect and the newest member of the DCA leadership team, Ramon Gomez brings more than 16 years of professional design experience and a diverse portfolio of education projects. His background includes working on LEED and CHPS certified facilities, as well as projects with design-build and lease-leaseback delivery methods. Ramon’s ability to understand his clients’ needs, combined with his expertise with technical issues, is instrumental in delivering solutions that are not just on time and budget, but also provide the best value to DCA’s clients.
Rick Bir, Senior Project Manager, is a highly skilled construction professional, with both construction and architecture experience in all aspects of project delivery. Throughout his career, he has successfully managed the design, development and construction of a wide array of high profile building types and capital improvement projects. With over 30 years of design-build expertise, Rick has successfully managed the design and construction of K-12 schools, university buildings, churches, historic renovations, financial institutions, hotels, hospitals, and medical office buildings, nationwide. He consistently receives high owner loyalty by balancing the value, design, and business necessities of his clients, and collaboratively executing projects.
Chris Brown, Director of Operations, has 25 years’ experience in higher education as a Vice President of Administration as well as a Chief Facilities Officer, in the Community College system as well as the California State University system. His background gives him a unique combination of experience and expertise regarding finance and facilities in the educational sector. Chris oversaw many projects from planning to construction, as well as multiple master planning efforts. Chris has the background to help DCA better understand the challenges our education clients face, as well as fully understanding what they need from us as a Client.
With more than 26 years of legislative advocacy experience, Sal Villasenor, Director of Business Development, has dedicated his professional life to improving California’s public education system through his work at the State Capitol, the State Department of Education, the California School Boards Association and the Association of California School Administrators. Sal also served as the Executive Director of the California Association of Latino Superintendents and Administrators. His main role at DCA is to develop, strengthen, and maintain business relationships that lead to attaining DCA’s long-term business objectives. Sal is well recognized in multiple arenas from the public and private sector for his contribution to successful community and state projects that help ensure California’s schools and their students are well served.
With DCA’s approach and preparation, the Galt Elementary School District, is very happy with the results. DCA has met and exceeded the district’s expectations with several projects. In my past work at Sacramento City USD where I oversaw over $200M in construction projects…I can say that DCA would be a partner I would seek for all size projects within a school district.Tom Barentson, Retired, CBO Galt Joint Unified School District and Deputy Supt. of Administrative Services at Sacramento City USD
The Roseville City School District went out for a design-build RFQ for a new elementary school in the spring of 2018. DCA separated themselves from the competition due to their ability to listen intently to our needs, seek feedback on their conceptual designs, and commit to meeting the strict timelines. The school design exceeded our expectations. Based on our experience, we look forward to partnering with DCA on future projects in the Roseville City School District.Derk Garcia, Superintendent | Roseville City School District
DCA has assisted us on several projects going back to 2014. They helped us successfully deliver out Prop 39 energy efficiency projects as well as the replacement of the main entry road to our campus…as the ‘new member’ of our team, they ‘jumped in,’ providing much needed leadership to our group of stakeholders and pre-existing consultants, which allowed us to deliver our projects on-time and within budget.J. Arturo Reyes, Superintendent/President | Mendocino-Lake Community College District
Through a combination of technical expertise, collaboration and customer service, DCA helped us become one of the first small districts in California to gain funding approval for our Prop 39 projects…the DCA team exhibited first rate professionalism, excellent work ethic, and worked with successfully with Trustees and staff to maximize optimal service to our learning committee.José L. González, Superintendent | Planada School District
Over the past 25 years, DCA has been partnering with our District on a variety of projects…DCA has presented a level of professionalism, teamwork and creativity that we do not always experience with other architectural firms. The DCA team always listens and responds in a timely manner with solutions and options. This all-encompassing professionalism has made DCA a pleasure to work with—something we look forward to for many years to come.Steve L. Breakfield, Director, Facilities & Planning | Stockton Unified School District
I have worked with Christina on three projects. She is very detail-oriented, and produces very tight and accurate documents. She also listens to what I need and focuses on my priorities.Fernando Nieto, Director of Facilities | Soledad Unified School District
It was a pleasure working with DCA on the Jesse Sanchez projects. Their professionalism, knowledge, and understanding of the project and needs of the owner, and the ability to work hand in hand with the contractor created a successful project from the beginning. Their team was sensitive to the constraints of both the budget and time, continually pushing the project forward. Because this was a “fast-track” project, the quick attention and response we received from DCA on every issue made this project a huge success.Sharon Dilbeck, President | Dilbeck & Sons, Inc.
I have worked with Juan on numerous projects that had very tight budgets. His ability to manage the design and keep the project on budget is amazing. I feel like Juan really listened to our priorities.Jose L. Manzo, Superintendent | Oak Grove School District
Steve has led the implementation of our Master Plan for the past four years. His interpersonal and facilitation skills have led not only to successful projects, but just as importantly, to a group of constituents that felt listened to.Dr. Esmeralda Mondragon, Superintendent | Calistoga Jt. Unified School District
I have worked with Craig on multiple projects for our District, most recently on a new school campus. He pays constant attention to our needs. He is a good listener and a genuine team player. We have given Craig our most important projects, and he has always delivered for us.John Ramirez, Jr., Superintendent | Alisal Union School District
Led by Ramon, the architectural team on our new Interdisciplinary & Fine Arts Building delivered a new facility on time and under budget that met our stakeholder’s needs and became a point of pride for our community.J. Arturo Reyes, Interim President | San Jose City College