Offered for the very first time! Lovingly maintained by the same family since it was built in 1978, this classic Colonial offers nearly 2,400 sq ft above grade, a full basement and an exceptional half-acre setting on a quiet dead-end street in unincorporated Mundelein. An extra-long driveway, mature trees and established landscaping set the stage for an expansive, level backyard with incredible space to relax, play and entertain. Inside, a double-door entry opens to a spacious traditional floor plan featuring maple hardwood floors in the formal living and dining rooms. The large family room offers a wood-burning fireplace, fresh paint, new carpeting and sliders to the backyard patio. The expanded kitchen features custom cherry cabinetry, granite countertops, center island, large pantry and a generous eating area. A convenient mud/laundry room with garage and backyard access completes the main level. Upstairs you'll find all four bedrooms, including a spacious primary suite with ample closet space and private bath, plus three additional well-sized bedrooms and a shared hall bath. The full basement adds approximately 1,170 sq ft with a finished recreation area featuring LVP flooring, drop ceiling and wet bar, plus abundant unfinished storage. The 2.5 car garage includes a storage space/bump out providing another 6'6" x 7'6" of space. Major improvements include a tear-off architectural roof (2019), 6" gutters with gutter guards (2021), dual-zone HVAC systems (2022-2023), water heater (2024), central humidifier (2023), Marvin windows and a brand-new electrical panel. West Shoreland membership includes community well water, Diamond Lake rights and access to two private neighborhood beaches. Enjoy the added convenience of being within walking distance to the lake, with golf carts permitted in the community, making it easy to enjoy all that this wonderful lake lifestyle has to offer. Nearly five decades, one family, and now-for the first time-the opportunity to make it yours.