Welcome to 16857 Colven Rd, a beautifully upgraded and private Granada Hills retreat nestled on a rare 20,564 sq ft flag lot backing directly to the 14th tee box of Knollwood Country Club Golf Course. This 3-bedroom, 2.5-bathroom home measures approximately 2,516 sq ft of interior living space, with an additional 545+/- sq ft sunroom and 300+ sq ft pool house with bathroom—ideal as a guest retreat, studio, or flex space. It may be different from public records. Buyer to verify permit status and square footage. Upgrades include vaulted ceilings, recessed lighting, tiled floors, Marvin Windows with Plantation Shutters, a 60' glass-enclosed sunroom, and a finished garage with insulation, drywall, and recessed lighting. A tankless water heater ensures comfort and efficiency, and a 2021 mini-split system provides zoned cooling. Paid-off solar panels (installed in 2015) offer long-term energy savings. The property is accessed via a 160' private driveway leading to a sprawling ranch-style home. The front yard features custom lighting, fountains, ample parking, and a 320 sq. ft. 4-hole putting green. A custom wrought iron gate secures the front porch, blending curb appeal with peace of mind. The remodeled kitchen boasts rich cabinetry, a two-level granite island, tile floors, a garden window, and recessed lighting. It opens to a spacious den, and a solid wood French door connects to the west patio. The sunroom features tinted windows, recessed lighting, and French doors on both sides, plus two 10’ Longview sliders and a 13’ Marvin wood-clad French door. The primary suite offers tiled floors, recessed lighting, and a custom walk-in closet. The spa-style bathroom includes a stone accent wall, soaking tub, and a large shower enclosed with ¾” sapphire glass. Two additional bedrooms share a ¾ bath and feature mirrored closets, recessed lighting, ceiling fans, and mini-split AC. The backyard is a true resort-style oasis with terraced landscaping, remodeled PebbleTec pool and spa, built-in BBQ and fire pit, basketball court, toddler playground, and private driving range. Fruit trees—including Meyer lemon, orange, grapefruit, and pomegranate—along with a cactus garden and Queen Palms complete the scene. A rare opportunity to own a one-of-a-kind home on a premier lot with golf course access, quality upgrades, and lifestyle amenities.