Welcome to this STUNNING 4-BEDROOM, 3.5-BATH home located in a private cul-de-sac within the highly desirable Beacon Hill Neighborhood of Kildeer, offering top-rated STEVENSON AND DISTRICT 96 SCHOOLS! This beautifully UPGRADED LANDMARK BUILT home features a 3-car garage, custom 5-inch wood fluted trim, shutters, dual access staircases, and a convenient service entrance to the laundry room. The GRAND 2-STORY FOYER sets the tone for the elegant interior, with an EXPANSIVE LIVING ROOM and a sophisticated FORMAL DINING ROOM leading to the kitchen. The UPDATED, SPACIOUS KITCHEN is a chef's dream with a large island, stainless steel appliances, custom cabinetry, and a walk-in pantry. Enjoy casual dining in the sunny eating area that leads to a GORGEOUS DECK AND PERGOLA, overlooking a private backyard with a BRICK PATIO AND FIREPIT. The 2-STORY FAMILY ROOM boasts a cozy fireplace and custom dry bar, creating the perfect setting for entertaining. The main floor also includes a convenient half bath, FUNCTIONAL OFFICE, and a separate LAUNDRY/MUD ROOM with garage access. Upstairs, the PRIMARY SUITE offers cathedral ceilings, abundant natural light, a walk-in closet, and a luxurious ENSUITE BATH with double vanities, a separate shower, and a spa tub. Three additional SPACIOUS BEDROOMS share a well-appointed hall bath. The FINISHED BASEMENT offers even more living space, with a full bath, potential kitchenette, recreation area, and a flex room that can serve as a potential theater room, additional bedroom, or home gym. The 3-CAR GARAGE provides extra space for storage, a workshop, or outdoor gear. The PROFESSIONALLY LANDSCAPED YARD including a lawn sprinkler system and electric pet fence is your private oasis, perfect for relaxing or entertaining, with a brick paver patio and deck with a pergola. Enjoy the convenience of nearby restaurants and shopping in Deer Park, Lake Zurich, and Long Grove, plus easy access to major highways and the train station for a QUICK COMMUTE. With TOP-TIER SCHOOLS and an unbeatable location, this home is the perfect blend of luxury and lifestyle!