Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep enough to completely bury at least one full course, including space for 6 to 8 ...

In 2014, California-based developers Baldwin & Sons began the design and development of a housing complex on 99 acres of land in the city of Lake Forest, at the base of the Santa Ana Mountains—it's ...