846 Northumberland Drive Updated Niskayuna Colonial with Backyard Oasis! A beautifully updated 3-4 bedroom, 2-full-bath Colonial offering 2, 100 square feet in the sought-after Niskayuna School District. The heart of the home is a modern eat-in kitchen featuring solid surface counters, stainless appliances, and abundant white cabinetry. Gleaming hardwood floors flow through the sun-filled living room and formal dining room, while the spacious family room with wood-burning stove insert opens to the back deck and perfect for cozy nights and easy entertaining. The first-floor den offers an amazing opportunity for a 4th bedroom ideal for guests, multi-generational living, or one-level living conveniently located near the full bath and main-level laundry. Upstairs you'll find three generous bedrooms and a second updated full bath. The finished basement provides flexible bonus space for a rec room, gym, or home office. Outside is where this property truly shines: a private, level 0.37-acre lot with mature trees, lush perennial gardens, patio, deck, shed, and a stunning koi pond that creates a serene, park-like retreat. Two-car attached garage, central air, and a quiet setting just minutes to Route 7 shopping and dining. Move right in and enjoy!