Welcome to 553 Grove Street in the heart of Upper Montclair, where timeless charm meets modern luxury! A beautifully updated 6-bdrm, 3.5-bath colonial offers incredible curb appeal & an ideal layout for both entertaining and everyday living. Enjoy the sun-drenched living room with custom-built-ins & wood-burning fireplace, which flows effortlessly into the spacious family room. Soaring vaulted ceilings, floor-to-ceiling windows & a second wood-burning fireplace are both dramatic & inviting. The elegant formal dining room opens into a stylish lounge/bar room and the chef's kitchen. With granite countertops, high-end appliances & a large peninsula. The adjacent dining area features a convenient wet bar and opens to your outdoor oasis: a blue stone patio with a built-in brick fireplace, outdoor kitchen & wall-mounted TV, perfect for hosting all year round. Retreat to the luxurious primary suite with vaulted ceilings, a spa-inspired bath with soaking tub, double vanity, & oversized shower. Need space for guests or an au pair? The private in-law suite is the ideal solution, offering a living room, bedroom, office, full bath, and kitchenette. Additional highlights include a finished basement, central air, whole-house generator, newer furnace, tankless water heater & a detached 2-car garage. Moments from Yantacaw Brook Park, Upper Montclair shops & the NYC train. This home truly has it all. Come fall in love with 553 Grove Street-your dream home awaits.