Introducing 20 Annandale Road, a meticulously well maintained home in the desirable Country Woods of Commack. Located on a flat usable half acre, this expanded 3700 sq. ft. 5 bedroom 3 1/2 bath Amagansett model is everything and more! Upon entering the home, you are welcomed by a custom staircase and vaulted ceilings. The formal dining room with coffered ceiling and living room are oversized and ready to host guests. The gracious family room offers a cozy gas fireplace and a wall of sliders and windows overlooking the backyard. The eat in kitchen is spacious featuring a center island for additional seating, custom cabinets, new quartz countertops, tile backsplash and top of the line stainless steel appliances. Off the kitchen is the butlers pantry, powder room, and access to the two car garage with heat and a/c. A first floor bedroom with a full bath and laundry room complete the main level. The primary ensuite features high ceilings, custom vanity, 2 walk in closets, soaking tub and stall shower. 3 Additional bedrooms that are generous in size featuring double door closets and an updated full hall bath. The full finished basement allows additional entertaining space with plenty of storage and exercise room. Rich oak flooring throughout, custom decorative molding, upgraded solid wood interior doors and LED hi hats throughout. The backyard oasis has a custom IPE wood deck which features an awning and a separate gazebo. Enjoy the 20x40 in ground heated salt water pool with a relaxing waterfall. Abundant grass space, beautiful landscaping and picturesque greenbelt backdrop completes this stunning property. © 2025 OneKey™ MLS, LLC