The last time this 1952 River Oaks home attributed to Staub and Rather was on the market was about a decade ago. At the time, it sold for $2.875 million to business titan and philanthropist Jack S. Blanton, who died in December of last year. The 1952 corner property features an expansion by a previous owner back in 1998 — around the time it sold for $1.08 million. In its listing earlier this month, the home’s asking price was $4.85 million. What sorts of add-ons have accompanied the rising prices?