In the prestigious enclave of Riomar Bay, this 0.55 acre property with 135 ft of river frontage is ideally positioned to capture the prevailing southeastern breeze. Previously the guest house for a larger estate, the 3,806 SF building could easily be adapted for full time residency, or start over and build your dream home. Combine this w/ the adjacent parcel (510 River Drive) for a legacy property without equal (a total of 594 ft of river frontage and 2.18 acres). The possibilities are endless. Golf cart to town, restaurants, the beach, farmer's market & Quail Valley River Club.