Zoning laws, at their most basic, follow a simple concept. In one part of town, ... Around 75% of residential land in the United States is zoned for single-family homes only.

Berkeley City Council voted to end single-family residential zoning in the city, jump-starting a process that could take until 2022 to eliminate the zoning that city leaders has racist ties.

Explanation of Olympia’s proposed changes to zoning code. Amendments would allow more and denser types of housing in residential zones and would allow duplexes in single-family zones.