Orion Builders of California stands out as San Diego's premier choice for multi-family construction. Renowned for our superior quality, expert ADU builders, and pioneers in hollowcore platform technology, we deliver projects with unmatched efficiency, completing them in less time and at a lower cost. Our cost-plus pricing model ensures full transparency and value, so you only pay for the actual costs. Choose Orion Builders for your next multi-family project and experience the reliability and innovation that set us apart as leaders in the industry. Building trust through transparency.