Precision ADU Construction for Irvine Properties

Irvine’s master-planned neighborhoods require a meticulous approach to property additions. Navigating local zoning laws, HOA guidelines, and the city's strict architectural standards demands a specialized team. STG Design Build delivers fully integrated accessory dwelling unit (ADU) construction, managing the entire process from initial concept through final inspection.

The Design-Build Advantage

As a licensed, bonded, and insured Southern California design-build firm, we eliminate the friction of managing separate architects, engineers, and contractors. Our coordinated team handles architecture, structural and MEP engineering, permitting, and construction under one roof. This single-source responsibility ensures your ADU is designed to exact specifications and built without communication breakdowns or costly delays.

Proven Execution and Uncompromising Quality

With over seven years in business, more than 520 clients served, and over 400 completed projects, STG Design Build provides Irvine homeowners and investors with transparent project management and superior execution. We design and build high-performance structures that integrate seamlessly with your existing property. We do not compete on budget-tier or cut-rate builds; our focus is entirely on structural integrity, elevated design, and long-term property value.

Streamlining the Permitting Process

Building an ADU in Irvine means securing approvals through a rigorous municipal and community process. We leverage our deep engineering and permitting expertise to move your project efficiently from concept and approvals through to active construction. Every technical detail is handled by professionals who understand local compliance.

Initiate Your Project

Partner with an architecture and construction firm that prioritizes quality execution and responsive communication. Schedule a discovery call today to discuss the requirements and timeline for your Irvine ADU project.