131 Ponce de Leon Avenue, also known as the Gulf Oil Building, was both a building in Midtown Atlanta, at the southeast corner of Ponce de Leon Avenue and Juniper Street, as well as the name of a planned mixed-use development which would incorporate portions of the Pei building's façade and add 321 apartments and 8,600 square feet (800 m2) of retail space.
The building was architect I. M. Pei's first project, built in 1949, a 50,000 square feet (4,600 m2) two-story "box that invoked the lean rectilinearity of Mies van der Rohe".
The proposed mixed-use development would incorporate the entire block bounded by Ponce de Leon Avenue, North Avenue, Piedmont Avenue and Juniper Street, except for St. Paul's church. A joint venture between real estate investment company Sereo Group Inc. and developer Faison Enterprises bought the 2.5-acre (10,000 m2) site in 2012.
In 2008, the block had been proposed for redevelopment as the "Fountain on Ponce" complex, but that project did not go through.
The building was demolished in February 2013, but the Atlanta Preservation Center stated that its understanding that a portion of the façade was to be "resurrected as a shell" and incorporated into the new complex.