Welcome to 106 Koch Lane, a spectacular luxury residence nestled on a quiet cul-de-sac in the heart of Old Tappan, located within the town's highly sought-after Blue Ribbon school district. This impressive custom-built home spans approximately 5,914 square feet on an expansive 0.87-acre lot, offering exceptional space, privacy, and modern design. A dramatic two-story foyer introduces an elegant layout ideal for today's lifestyle, featuring a first-floor bedroom, private home office, formal living room, and a spacious family room with a gas fireplace. The modern eat-in kitchen features a large center island and sliding glass doors leading to the patio, creating seamless indoor-outdoor living. A custom wet bar with sink connects to the formal dining room, perfect for entertaining. The second level offers four generously sized bedrooms, a second laundry room, and a large recreation space ideal for a gym, media room, or playroom. The primary suite includes his and her walk-in closets and a beautifully appointed bath with double vanity, soaking tub, and separate shower. Thoughtful design and impressive scale create a warm yet refined living experience in one of Bergen County's most desirable communities.