This residential project focuses on the transformation of an existing structure into a detached Accessory Dwelling Unit (ADU) through the legalization of a 305.96 square foot addition. The engineering scope ensures the conversion meets all 2022 California Building Codes, providing a fully independent living space that includes a new bedroom and modern amenities while integrating seamlessly with the primary residence’s site plan.

The structural engineering for the ADU includes a comprehensive foundation plan featuring new grade beams and shear wall schedules designed for seismic resilience. Detailed framing plans specify the use of Douglas Fir-Larch lumber and Simpson Strong-Tie hardware to ensure the structural integrity of the detached unit’s roof and wall systems.

Mechanical and electrical systems are specifically designed for independent ADU functionality, featuring high-efficacy LED lighting, solar-ready electrical panels, and dedicated ventilation schedules. The project also manages the removal of existing garage doors to facilitate the change in occupancy, ensuring the new unit provides a safe, energy-efficient, and code-compliant residential environment.