Address: 690 W. 83rd St. in Hialeah

Property type: This is a 27,000-square-foot, one-story industrial building constructed in 1969 on 1.26 acres, according to the Miami-Dade County Property Appraiser's office. It currently is the corporate office for General Stair Corp., or GSC, a residential and commercial stairs builder.

Price: $2,470,500

Seller: Laura Lee and Philip Fidler

Buyer: Six Ninety LLC

Past sale: $700,000 in March 1983