Nestled within the prestigious Serrano Heights community of Orange, 6733 E San Marcos is a beautifully appointed two-story residence offering an exceptional blend of space, privacy, and effortless Southern California living. Set among a collection of luxury homes, the property rests on an expansive corner lot exceeding 12,000 square feet, providing both serenity and generous outdoor enjoyment. Spanning over 3,400 square feet, the home is thoughtfully designed to deliver comfort and functionality throughout. The main level welcomes you with a grand living room featuring soaring cathedral ceilings and near floor-to-ceiling windows, filling the space with natural light. A spacious formal dining room connects seamlessly to the kitchen via a butler's-style pantry, creating an ideal setting for entertaining. The kitchen is beautifully appointed with stone countertops, maple cabinetry, upgraded appliances, and a large center island that extends into the breakfast nook. Adjacent, the inviting family room with fireplace offers a relaxed yet refined space for everyday living. A downstairs den, originally a builder option for a fifth bedroom, sits alongside a full bathroom--providing flexibility for guests, a home office, or future conversion. Upstairs, the layout continues to impress with a junior suite complete with its own bathroom, a convenient tech nook, and two additional bedrooms connected by a Jack-and-Jill bathroom. The primary suite is a precious respite, offering generous proportions, a private retreat with fireplace, and a spa-inspired bathroom centered around a soaking tub, complemented by a separate shower, dual vanities, and an expansive walk-in closet with dual entry. Outdoors, the resort-style grounds are designed for both relaxation and entertaining. Enjoy an inviting barbecue island, a waterfall-accented pool, and a soothing spa, all set against a backdrop of open space and privacy. An outdoor fireplace ensures year-round enjoyment, while the expansive side yard accommodates gatherings, events, or recreation. A raised viewing deck crowns the experience, offering peaceful sunrise and sunset views across the rolling hills of Orange County. An exceptional opportunity to enjoy refined living in one of Orange's most desirable hillside communities.