The heart of the problem is low vacancy giving landlords market power. The inherent scarcity of land in desirable locations is amplified by zoning laws keeping

The heart of the problem is low vacancy giving landlords market power. The inherent scarcity of land in desirable locations is amplified by zoning laws keeping housing supply growing much slower than demand. When 90% of urban land is zoned for single family housing and it is literally illegal to build a duplex let alone an apartment building you will have a shortage. Eliminate parking minimums, setbacks, feature area ratio, height limitations, endless environment impact lawsuits, and build!