Can zoning reform increase housing construction? Evidence from Auckland

Ryan Greenaway-McGrevy

No 17, Working Papers from University of Auckland, Economic Policy Center (EPC)

Abstract: In 2016, Auckland, New Zealand upzoned approximately three-quarters of its residential land, allowing medium and high density housing to be built in areas previously zoned for low density. Permits for the construction of new dwellings subsequently reached record highs. We use a synthetic control method to evaluate the impact of this widespread zoning reform on housing starts. The synthetic control provides an estimate of outcomes under the counterfactual of no zoning reform and implies that the upzoning approximately doubled new dwelling permits per capita within five years of the reform becoming operational. Seven years on from the reform, cumulative permits issued exceed those of the synthetic control by approximately 52,200, forty-six percent of the 112,300 permits issued over this period. These findings suggest that zoning reform can be used to redress housing shortages in other jurisdictions.

Keywords: Upzoning; Land Use Regulations; Redevelopment; Housing Starts; Synthetic Controls (search for similar items in EconPapers)
JEL-codes: R14 R31 R52 (search for similar items in EconPapers)
Date: 2025-09
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Journal Article: Can zoning reform increase housing construction? Evidence from Auckland (2026)
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Persistent link: https://EconPapers.repec.org/RePEc:cyc:wpaper:017

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