A housing project climbs a permit ladder: zoning permit → building permit → trade permits (electrical, plumbing, mechanical, fire). We call a project stalled when it stops climbing for 12 months or more. There are two stages. Permitted, not progressing means the project holds a live building permit but no trade permit has followed it in a year — it can break ground immediately. Restricted to apartment projects of 10 units or more, this is the shovel-ready cohort of 39 projects and 2,930 units. Entitled, no building permit means the project holds new-construction zoning approval but never pulled a building permit — 3,423 projects and 4,572 units. This measures documented progress through the City’s own permit system rather than inspections or any judgment about a project’s finances. Renovation permits are excluded, because L&I’s unit count on a renovation reports the units already in the building rather than new units created.