598 Tam O Shanter Dr Welcome to this beautifully upgraded single-story home offering the perfect blend of comfort, functionality, and outdoor space in the heart of San Marcos. Situated on an expansive quarter-acre lot with no HOA, this 4-bedroom, 2-bath residence features approximately 1, 315 square feet of thoughtfully updated living space. Recent improvements include a new roof, new HVAC system, upgraded flooring throughout, and energy-efficient mini-split systems in every bedroom, and the living room, providing customized comfort year-round. A versatile bonus room offers the ideal space for a home office, gym, playroom, or hobby room. Designed with flexibility in mind, the property features solar, an attached 2-car garage, RV parking, an additional driveway and a storage shed-providing ample room for recreational vehicles, trailers, work trucks, or multiple cars. Step outside to enjoy the oversized backyard complete with mature fruit trees and abundant space for entertaining, gardening, or creating your dream outdoor retreat. The generous lot also offers excellent potential for an ADU or future expansion (buyer to verify). Conveniently located near parks, schools, shopping, dining, and major commuter routes, this move-in-ready home offers a rare combination of modern upgrades, versatile parking, and exceptional outdoor potential-all with the added benefit of no HOA. Don't miss this outstanding opportunity to own a turnkey property with room to grow in one of San Marcos' most established neighborhoods.