Welcome to 45745 Altree Ct, a beautifully upgraded Next Gen home for sale in South Temecula, located on a peaceful cul-de-sac near top-rated schools, parks, and Temecula's award-winning wineries. With over 4,100 sq ft, this spacious 7-bedroom, 4.5-bathroom home offers flexible living designed for multi-generational households or large families looking for space, privacy, and luxury. The open floor plan features a gourmet kitchen with quartz countertops, stainless steel appliances, an oversized island, and a gas cooktop that flows seamlessly into the dining and living areas with a cozy fireplace and backyard views. A fully equipped Next Gen private suite includes its own entrance, two large bedrooms, a full bathroom, living area, kitchenette, and dedicated laundry, perfect for in-laws, guests, or extended stays. Upstairs features a spacious loft, a luxurious primary suite with valley views, soaking tub, glass shower, dual vanities, and a walk-in closet, plus four additional bedrooms, including one with an ensuite bath, a full hallway bathroom, and a second laundry room. The backyard is a private retreat with a sparkling pool and spa, covered patio with recessed lighting and ceiling fans, a built-in BBQ island with fridge, sink, and cooktop, a firepit, raised garden beds, plumcot and pomegranate trees, turf, pavers, and unobstructed views of the Temecula Valley. Additional upgrades include PAID solar, shutters throughout, motorized blinds, water softener, reverse osmosis system, epoxy garage floors, an extended driveway, and a security screen door. If you're searching for a Temecula pool home with a guest suite or a luxury home with multigenerational potential, this one has it all.