9325 Old Mansion Rd is asking $2,700,000 but how does that compare to others featured in Riverwood. 9325 Old Mansion Rd has 5 BR, 5 BA and 4 1/2 BA. additional benefits from this community. are all included in the association fees. two thirds of tdetached homes selling in Riverwood have basements 9325 Old Mansion Rd is the most expensive property on the market in Riverwood. The average living area in Riverwood is 6,042 while 9325 Old Mansion Rd has 9,641 sqft of living space.