Seattle Building Permits Analysis

Seattle Building Permits

Building permit counts by location. Dataset fields: permitnum, latitude, longitude

Top 42 Permit Descriptors

Frequency of words used to describe the project proposed in the permit application. Dataset field: description

Housing Units by Zip Code

Wallingford/Green Lake (98103) and North Seattle (98115) have the most permits for multi-family developments. Permits in Ballard (98107) are balanced between residential and commercial projects. West Seattle (98106) and Rainier Valley (98118) permit applications focus primarily on single-family renovations.

Dataset fields: originalzip, housingunitsnet (defined as housingunits + housingunitsadded - housingunitsremoved)

Housing Units Trends

Despite seasonal fluctuations, the overall trend shows a steady increase in housing units, with peak activity typically occurring in late summer months.

Dataset fields: issueddate, housingunitsnet

Monthly Housing Trends

Analysis of monthly housing unit additions and permit counts over time, showing seasonal patterns and trends in development activity.

Dataset fields: originalzip, housingunitsnet, issueddate

Seasonal Housing Unit Changes

Analysis of housing unit changes and permit counts by season, showing peak activity in summer months.

Dataset fields: originalzip, housingunitsnet, issueddate

Permit Processing Times

Median processing time is 43 days, with 90 percent of permits completed within 261 days. Processing times vary significantly by permit class.

Dataset fields: originalzip, housingunitsnet, issueddate, permitclassmapped

Project Costs by Zip Code

The median project cost is $100,000, while the average is $714,667, indicating a significant skew toward high-value projects in certain areas.

Dataset fields: originalzip, housingunitsnet