Fixing the Red State Housing Blues

Why It Matters

Easing zoning constraints could increase housing supply and temper Idaho's soaring home prices, signaling a shift toward supply‑side solutions in traditionally conservative states.

Key Takeaways

• Idaho bans minimum lot size rules, enabling four‑acre starter subdivisions
• Accessory dwelling units now prohibited from being banned by cities or HOAs
• Multifamily buildings may use a single stairwell, reducing construction costs
• Bills modeled on Montana’s 2023 housing reforms
• Both Republican and Democratic lawmakers support deregulation despite local opposition

Pulse Analysis

Idaho’s housing market has become a microcosm of a national affordability crisis. Over the last ten years, the median home price in the state has more than doubled, pushing the average first‑time buyer’s age past 40. Rapid in‑migration from higher‑cost coastal areas has strained a limited land base, while local zoning rules—particularly minimum lot sizes and restrictions on accessory dwelling units—have limited the ability of developers to deliver smaller, more affordable homes. The result is a supply‑side bottleneck that policymakers are now scrambling to address.

The legislature’s three‑bill package directly tackles those bottlenecks. One bill eliminates municipal minimum lot‑size requirements, allowing “starter home subdivisions” on parcels as small as four acres, a size that can accommodate modest 900‑square‑foot homes reminiscent of early‑20th‑century neighborhoods. A second measure bars cities and homeowners’ associations from prohibiting accessory dwelling units, unlocking a proven avenue for adding rental units without new land development. The third bill permits certain multifamily structures to be built with a single stairwell, a cost‑saving design that mirrors reforms in Montana, Texas and other red‑state jurisdictions. While Republicans champion the free‑market rationale, Democrats on the interim housing committee have joined the effort, underscoring a bipartisan recognition that local control can impede broader economic goals.

Idaho’s reforms are part of a broader wave of zoning deregulation across conservative states seeking to replicate the so‑called “Montana miracle.” If successful, the policies could increase housing inventory, lower construction costs, and gradually bring prices closer to income levels, offering a template for other regions grappling with similar affordability pressures. Critics warn that loosening zoning may exacerbate sprawl and strain infrastructure, but proponents argue that without expanded supply, price growth will continue unchecked. The coming years will reveal whether Idaho’s blend of market‑driven deregulation and bipartisan compromise can deliver the promised boost in affordable housing.