Set on an expansive 8,670-square-foot lot in coveted San Mateo Park, 509 Crescent Avenue offers an exceptional blend of timeless character, privacy, and effortless indoor-outdoor living. A gracious formal living room and elegant dining room create beautiful spaces for entertaining, while the kitchen serves as the heart of everyday life, opening naturally to the backyard. Outside, a generous lawn framed by mature trees creates a private setting for play, gatherings, and relaxed afternoons at home. Inside, approximately 2,940 square feet unfold across a versatile five-bedroom, four bath floor plan. Two bedrooms on the main level offer flexibility for guests, a home office, or multigenerational living, while upstairs are three additional bedrooms, including the primary suite and two secondary bedrooms that share a full bath. A generous family room provides additional space to gather, and a detached two-car garage adds convenience and flexibility. Enjoy all that San Mateo Park has to offer tree-lined streets, beautiful homes, neighborhood block parties, and walkability. Just minutes from downtown Burlingame, 509 Crescent offers a rare combination of space, privacy, charm, and convenience in one of the Peninsulas most beloved neighborhoods.