The California Building Industry Association is a statewide trade association based in Sacramento representing thousands of member companies including homebuilders, trade contractors, architects, engineers, designers, suppliers and industry professionals in the homebuilding, multi-family and mixed-use development markets.

[1] The CBIA was established in 1943 as a federation of local and regional associations representing builders at the state level and functioned solely as a lobbying organization.

[citation needed] In addition to lobbying, the CBIA has incorporated technical, membership, insurance, and educational departments.

[7] In 2010, the CBIA objected to a proposed Los Angeles law that would require new homes, larger developments, and some redevelopment projects to prevent stormwater runoff from reaching the ocean.

According to the Los Angeles Times, "The law was designed to mitigate the negative effects of urbanization by controlling runoff at its source with small, cost-effective natural systems instead of treatment facilities.