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The building code rule that lets Seattle turn forgotten lots into housing

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Why This Matters

Seattle's revision of building codes to permit single-stairwell, mid-rise apartments on small lots exemplifies how regulatory reform can address housing shortages and promote urban density. This change not only increases housing options but also encourages innovative, cost-effective development strategies. Such reforms are crucial for cities facing housing crises and seeking sustainable growth solutions.

Key Takeaways

Rethinking the building code to allow single-stairwell buildings brought more small-lot, mid-rise apartments to the city—and sparked a wider reform movement. Fire officials and pro-density urbanists are often at loggerheads. This is especially evident in notoriously car-centric Los Angeles, where a firefighters’ union spent six figures opposing active mobility measures. The two camps can have different ideas of acceptable risks and priorities.