Accessory Dwelling Units, and balcony inspections & repairs per SB326/SB721. Whether you need to meet current codes and mandates or increase your property value & monthly income, One Structural is there for you. With our team of licensed contractors, engineers, plumbers, & water damage restoration experts, we can address a variety of construction and design needs for your property. Each project is assigned a Project Manager to keep construction on schedule and at budget. Our contracts are firm from the moment you sign. We always have a live person to answer your call or get back to you as quickly as possible. One Structural - Quality service and hard work you can trust.

We offer three main services for your multifamily property: seismic retrofitting, balcony inspections & repairs, and accessory dwelling units (ADUs). With over 30 years of combined experienced, One Structural does it all. Our three divisions - Retrofit1, Balcony1, and ADU1 - make sure your multifamily property's needs are met. Whether you want to increase value and monthly income or tackle the new laws and mandates, we are your one stop shop. We provide engineering/design, project management, permit expediting, and construction services. Family owned and operated.