In 1981 and 1982, the shopping hub was given a major makeover. It was fully enclosed, an upper level was built on top of the first and two new anchor stores were added; Mervyn's and Nordstrom. This circa-1983 site plan also shows the renovation and expansion of Sears, that had been completed back in 1966.
A view of the new (in 1982) Nordstrom. It was the Seattle retailer's first Bay Area store. One can also see the current location of the Bufano Cat, in the lower right corner of the shot.
Photo from www.shophillsdale.com