building permit application Contra Costa County Building Department Sewer permits issued by the District are required for all sewer work performed outside the building foundation. Plumbing work within the foundation line is subject to a building permit issued by the county building department. Contra Costa County Building Inspection Department Commercial Property FAQs non-residential application Waste Discharge Permit Residential Application fees Sewer Construction Guidelines for Private Sewers Contra Costa County Building Inspection Department County Encroachment Permit Contra Costa County Public Works A building must be approved by the county building inspector prior to DDSD inspection. Sewer repairs are eligible for inspection after trenching, bedding, and placing pipe - but before backfill. Customer must have sewer permit on-site for inspection.

DDSD Bay Point Flowchart