There are two "active" listings on Calle La Primavera. One is an equity seller listed at $1.6 million (34135) and the other is in back-up status (34081) and is a short sale. Most likely this is the home they are showing you on this. Back-up normally means they have it in escrow, and they have an offer into the bank. This is listed at $845,000.
It also possible that this is not listed for sale yet....or perhaps they are working on a loan modification or will reinstate the loan, there are several reasons a home might not be for sale, but have a Notice of Default filed.