From the Curbed inbox:
When completed in 1951, the building was the largest Sears store in the Bay Area and one of the largest in the nation. Sears left the location in 1991, leaving the building to be chopped up and subdivided into other stores and creating the look that earned it the "ugliest building" title.
Luckily the recent project by Studio One Eleven to convert the building into a Target (plus some other new tenants) has spruced things up considerably.
· Historic Resource Evaluation Response - 2675 Geary Boulevard [SF Planning]
· Previous Coverage of City Center [Curbed SF]