Seattle's housing emergency was declared in 2015, while the old Seattle Police building was torn down in 2005, leaving a one-acre hole in the ground across from City Hall for twenty years. These are not unrelated problems, and this book explores just how much land is available and what keeps it from being developed. It follows that thread — through the assessor's records, the parcel data, and eight years of field notes — to offer some remedies that could address both.
Census tract choropleth and parcel-level dot map. Four metrics: land value per acre, stub percentage, improvement ratio, population density. Click any tract to drill down to individual parcels.
Open map →Every Seattle parcel rendered as a column. Height and color encode land value per square foot. The downtown cliff face and the surface lot craters are immediately visible.
Open map →Where the data came from, how it was processed, and how to replicate the analysis for King County or any other jurisdiction. Full pipeline code included.
Read the colophon →King County Assessor records, May 2026 · Census 2020 · Methodology documented in colophon
Assembled from eight years of field notes, parcel data, and assessor records. The argument rests on public data that anyone can obtain and replicate. The data colophon documents exactly how.
404 pages · Otherwise Books · Seattle · 2026
ISBN 979-8-234-03569-1 (print) · ISBN 979-8-234-08360-9 (ebook)
BISACs: POL002000 / BUS054000 / POL023000