What Is 1997 Oregon Ballot Measure 49

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Last updated: April 15, 2026

Quick Answer: 1997 Oregon Ballot Measure 49 was a voter-approved initiative that limited urban growth boundary expansions, requiring a 20-year land supply and a supermajority vote for certain developments. It amended Measure 37 (2004) and aimed to curb sprawl.

Key Facts

Measure 49 passed in November 1997 with approximately 56% voter approval.
It amended Oregon's land use planning laws under Senate Bill 100 and later influenced Measure 37.
The measure required cities to maintain a 20-year supply of developable land within urban growth boundaries.
It mandated a three-fourths vote in local legislatures to approve expansions of urban growth boundaries.
Measure 49 aimed to reduce urban sprawl and protect farmland and natural resources in Oregon.

Overview

1997 Oregon Ballot Measure 49 was a significant piece of legislation aimed at controlling urban sprawl and preserving farmland by tightening regulations on urban growth boundary (UGB) expansions. It was designed to strengthen Oregon’s land use planning framework established under Senate Bill 100 in 1973.

The measure responded to growing concerns about unchecked suburban development and the conversion of agricultural and forest lands into residential zones. By imposing stricter requirements for land use changes, Measure 49 sought to ensure long-term planning discipline and environmental protection.

Measure 49 passed in November 1997 with about 56% voter support, reflecting broad public concern over land use policies.
It amended existing state planning laws to require cities to demonstrate a 20-year supply of developable land before expanding urban growth boundaries.
The law mandated that any UGB expansion required approval by a three-fourths supermajority vote in the local governing body, increasing accountability.
It reinforced protections for farmland, forests, and natural resources by limiting the conversion of rural land into urban zones.
Measure 49 laid the groundwork for later reforms, including the partial rollback via Measure 37 in 2004, which addressed property rights concerns.

How It Works

Measure 49 functioned as a regulatory amendment to Oregon’s land use planning system, focusing on how cities could expand their urban growth boundaries. Its core mechanism involved both supply requirements and political safeguards.

Term: Urban Growth Boundary (UGB) – A legally defined line separating urban from rural land. Measure 49 restricted UGB expansions unless cities could prove a 20-year land supply.
Cities were required to conduct regular land supply inventories to demonstrate compliance with the 20-year developable land mandate.
Any proposal to expand the UGB needed approval from at least 75% of the local legislative body, making expansions politically difficult.
The law applied to all cities with populations over 1,000 and their surrounding urban growth areas, ensuring statewide consistency.
Exceptions were limited and required justification based on population growth projections and housing demand forecasts.
Enforcement was managed by the Oregon Department of Land Conservation and Development (DLCD), which reviewed compliance reports.

Comparison at a Glance

Below is a comparison of Measure 49 with related land use policies in Oregon:

Policy	Year Enacted	Key Requirement	Vote Threshold	Primary Goal
Senate Bill 100	1973	Established statewide land use planning	Simple majority	Planning consistency
Measure 49	1997	20-year land supply for UGB expansion	Three-fourths vote	Limit sprawl
Measure 37	2004	Compensation for land use regulations	Simple majority	Protect property rights
Measure 49 (revised)	2007	Modified compensation rules	Simple majority	Balance development and rights
Senate Bill 10	1999	Urban growth management	Simple majority	Infrastructure coordination

This table highlights how Measure 49 introduced stricter procedural hurdles compared to earlier and later laws. While Senate Bill 100 created the framework, Measure 49 added enforcement teeth, only to be partially undone by Measure 37’s property rights focus.

Why It Matters

Measure 49 had lasting implications for land use policy, urban planning, and environmental conservation in Oregon. Its legacy continues to influence debates over growth management and property rights.

It significantly slowed suburban sprawl around cities like Portland, Eugene, and Bend by limiting arbitrary UGB expansions.
The 20-year land supply rule became a model for smart growth planning in other states facing similar development pressures.
By requiring supermajority approval, it increased transparency and public accountability in local land use decisions.
Environmental groups hailed it as a victory for preserving farmland and wildlife habitats threatened by development.
However, critics argued it contributed to rising housing costs by restricting land availability in growing regions.
The tension between Measure 49 and Measure 37 led to a 2007 compromise, Measure 49 (2007), which revised compensation rules.

Ultimately, the 1997 Measure 49 remains a cornerstone in understanding Oregon’s approach to balancing growth, property rights, and environmental stewardship.