The open-air mall was expanded toward the southeast in the mid-1960s. It gained a new Vons grocery and substantially larger Grants (in light gray). This store had relocated from a smaller location in the original mall.

RIVERSIDE PLAZA was roofed-in in 1984. The 632,000 square foot facility now had two anchor-sized stores; Harris' and Montgomery Ward. The latter had assumed the east anchor space. It had been rebranded, as a Grant City, in 1973 and was shuttered in 1975.