3740 La Colusa Dr Nestled in a well-established San Marcos neighborhood, this charming single-family detached home offers classic mid-century appeal paired with thoughtful updates and long-term value. Situated on a generous 9, 500 sq ft lot, the property provides rare outdoor space and endless potential for gardening, recreation, or future enhancements. Designed for single-story living, the home offers a functional, flexible floor plan filled with abundant natural light, creating comfortable living and entertaining spaces. Recent upgrades add peace of mind, including a new roof installed in June 2023 with a GAF Golden Pledge warranty, exterior paint completed in 2024, brand-new carpet (January 2026), and garage door system upgrades in 2026, featuring a new LiftMaster opener and torsion system. Additional improvements include plumbing upgrades completed between 2022-2026, such as a water heater, low-flow toilets, kitchen sink, and valves. Ideally located near schools, retail, freeway access, and local parks, trails, and outdoor recreation areas, this home captures the best of San Marcos living. A wonderful opportunity for homeowners or investors seeking a well-maintained property in a stable, desirable community.