Welcome to 124 S Idaho Street, a comfortable home on a spacious 8,200 sq ft lot in the heart of San Mateo. This 3-bd, 2-ba residence offers approximately 2,230 sq ft of living space, featuring hardwood + laminate floors, generous-sized bedrooms, and a practical floor plan. Step through the entry to a large living room, adjacent and open to a dining area and eat-in kitchen. Sliders lead you to the open and flat back yard. Two generous bedrooms share a hall bathroom, while the primary bedroom and bathroom sit at the rear of the home. Move-in ready, this home offers room to grow, play, or make it your own. Separate laundry room and ample storage. The expansive R3-zoned backyard provides outstanding flexibility and endless opportunity, whether for play, entertaining, gardening, adding an ADU, or future expansion. A two-car attached garage and ample driveway parking add everyday convenience. All of this in an unbeatable location - just minutes from Downtown San Mateo, Caltrain, Central Park, top-rated schools, and major employers. This home brings together location, space, and long-term potential. Whether you're starting a family, upsizing, or looking for a home with long-term potential, this property offers the space, flexibility, and neighborhood feel that truly make a house a home.