In the Sacramento area, there are many McKeon homes (pronounced Mc cue in). McKeons are named after the McKeon Corporation which built many attached four-plex buildings in the 60s and 70s.

Greenback Estates' McKeons were built in the 1970's. There are three different 2 bedroom, 1 bath floorplans: unit #1 is a first floor unit; #2 and #3 are two-story units; and unit #4 is a second floor unit. 

Each unit owns one half of a two-car garage, and all four share a coin-operated washer-dryer set. Each unit is separately owned. The condominium association maintains the building exterior and common areas.