Expert ADU Construction in Mission Viejo

Adding an Accessory Dwelling Unit (ADU) in Mission Viejo requires a comprehensive strategy. STG Design Build delivers a complete design-build solution for homeowners and property investors. We manage the entire lifecycle of your ADU project—from initial architecture and structural engineering to securing city permits and executing the final construction.

Navigating Local Requirements

Mission Viejo’s master-planned layout and stringent architectural standards mean that permitting and approvals must be handled with precision. Our team understands the specific zoning laws and community guidelines governing ADU construction in this region. By integrating our architectural designers, MEP engineers, and construction managers into one cohesive unit, we eliminate the communication gaps that traditionally cause delays and budget overruns.

A Unified Design-Build Process

Over the past seven years, STG Design Build has successfully served over 520 clients and completed more than 400 projects. We apply this extensive technical expertise to every ADU we build. Our integrated approach provides you with transparent project management, responsive communication, and premium execution. We focus on delivering a structurally sound, highly functional, and fully compliant ADU that adds lasting value to your property, making us the ideal partner for clients who prioritize quality over cut-rate solutions.

Start Your Project

Move efficiently from concept to completion with a licensed, bonded, and insured team. Schedule a discovery call to discuss your Mission Viejo ADU project with our architecture and construction experts.