Real estate investors and urban developers should take note of Seattle’s building code reform, which unlocks massive value in 'unbuildable' small lots by permitting single-stairwell designs. This shift is sparking a national movement to increase urban density and ROI by removing the prohibitive costs of traditional multi-exit requirements.
Key Intelligence
- •Seattle is proving that changing a single line of fire code—allowing single-stairwell buildings—can turn 'forgotten' small lots into profitable mid-rise housing.
- •The reform ends a long-standing deadlock between fire officials and urbanists, prioritizing land-use efficiency over redundant egress requirements for smaller footprints.
- •Apparently, traditional US codes often mandate two staircases for buildings as short as three stories, a rule that makes development on narrow urban lots financially impossible.
- •The 'Point Access Block' design is standard in Europe and Asia; its adoption in the US could fundamentally change the economics of urban infill projects.
- •Did you hear that California and other states are now fast-tracking similar reforms to solve the housing supply crunch and lower construction costs?
- •For developers, this represents a new asset class: high-density, small-footprint residential projects in premium core urban markets.
- •While fire safety remains the primary concern, modern sprinkler systems and fire-resistant materials are making the case for single-stair designs much stronger.