We're sorry. King County Archives cannot fulfill your request.
Permitting records, including building / construction plans, floor plans, and architectural drawings, aren't typically recorded, and the County Archives holds very few permitting records for residential or commercial structures. The bulk of our collection focuses on county government-owned buildings.
If the building was constructed in a city, please contact that city’s permitting / construction office. They can tell you how far back their permitting files go.
If the building was constructed in unincorporated King County, contact the King County Permitting Division. Their collection of permitting records starts around the 1980s, so depending on when the structure was built, they may have something.