Insights

Seattle construction, visualized

Data-driven views built from the permits we aggregate across Seattle. Each report updates as new permit data is ingested.

Timing

Plan review times

How long permits spend in SDCI review before they're issued — by type, neighborhood, and review cycle.

78 avg days · 2,635 permits
Flow

The permit pipeline

Application → issuance → completion: how many permits reach each stage and how long it takes.

10,929 issued of 13,831
Growth

Housing units tracker

Net new dwelling units permitted across Seattle and the neighborhoods adding the most homes.

+3,970 net units
Small-scale housing

ADU & DADU permit tracker

Accessory dwelling unit permits by year, neighborhood, status, declared value, and recent activity.

1,902 matching permits
Multifamily

Multifamily construction pipeline

Seattle apartment, condominium, townhouse, and multi-unit permit activity by stage and neighborhood.

Explore multifamily activity →
Commercial

High-value commercial projects

Seattle commercial permits valued at $1 million or more, with neighborhoods, status, and recent activity.

Explore commercial activity →
Interiors

Tenant-improvement activity

Tenant-improvement and tenant-alteration permits by year, neighborhood, value, and recent activity.

Explore TI activity →
Geography

Construction activity map

Permit counts and total construction value mapped across Seattle's neighborhoods.

53 neighborhoods
Players

Contractor scorecards

Which contractors pull the most permits, the highest value, and have the widest neighborhood reach.

2,078 active contractors
Connections

Who builds where

A network linking Seattle's busiest contractors to the neighborhoods they build in.

Explore the network →