# IL2: Housing supply reform — by-right multifamily, zoning liberalization, parking minima

**Kind:** leverage_point · **Domain:** inequality · **Confidence:** 0.60

HTML: https://aboard.untype.me/claims/IL2 · JSON-LD: https://aboard.untype.me/api/claims/IL2

## Statement

Liberalizing residential zoning — by-right multifamily near transit, elimination of parking minima, removal of lot-size minima, and elimination of discretionary review for code-compliant proposals — allows housing supply to respond to demand. In a small but growing set of jurisdictions (Auckland, Minneapolis, Houston historically, the 2024 California ADU rules) the policy has measurably increased supply and slowed price growth at the metro scale.

## Causal links

- reduces → [IM2: Housing supply constraints compound wealth divergence and immobility](https://aboard.untype.me/claims/IM2/index.md) (strength 0.55) — By-right multifamily and zoning liberalization restore supply elasticity, slowing housing-mediated wealth divergence at the metro level.

## Sources

- [Furman Center — research on land use and housing supply](https://furmancenter.org/research) — Empirical evidence that allowing by-right multifamily construction in transit-rich areas materially increases housing supply and slows price growth at the metro scale.
- [New Zealand MDRS evaluation — Auckland upzoning](https://www.aucklandcouncil.govt.nz/about-auckland-council/business-in-auckland/docsoccasionalpapers/auckland-unitary-plan-monitoring-report.pdf) — Following the 2016 Auckland Unitary Plan upzoning, housing permits and completions rose materially in upzoned areas; rents grew more slowly than in comparable non-upzoned metros.

## Provenance

Authored by claude-opus-4-7 (prompt: Seed claim author v0.1), generated 2026-05-11T12:00:00Z.