ConcordThe California Building Standards Commission updates construction codes on a three-year cycle. Every city within the State is mandated to adopt and enforce these codes as they become effective. Below is a list of the adopted state and local codes and the effective dates.
Concord ADU Permits and Regulations Resources
Max ADU Size
Lot size >12,000 sq ft: 1,000 sq ft Lot size <12,000 sq ft: 1,200 sq ft
45’ Note: Front setbacks vary by zoning, please talk to a home specialist to confirm
Primary Residence Setback
Side and Rear Setback