Welcome to this spectacular home! Nestled on a quiet street in highly sought-after Andrew Highlands, this heavily expanded and beautifully updated quad-level property offers a massive, versatile layout. While official records only show above-grade space, the true finished living footprint stands at nearly 2700 square feet of immaculate space when including the massive, fully finished lower level. From the moment you arrive, the striking curb appeal, pristine brick-and-siding exterior, and professional landscaping welcome you home. Step inside to an expansive, sun-drenched main level featuring soaring vaulted ceilings and gleaming hardwood floors that flow seamlessly from the spacious living room into the formal dining area. The heart of the home features an open kitchen that leads directly into a massive, 19×15 four-season sunroom addition from 2008, serving as the ultimate sun-soaked sanctuary. Step out from the sunroom onto your oversized custom backyard deck built in 2023, complete with a premium outdoor natural gas grill that stays with the home. The architectural layout is a true showstopper, offering a brilliant footprint that evolved from a standard three-bedroom home into a spacious four-bedroom masterpiece. Take a short flight of stairs up to a completely private, spectacular third-floor primary suite addition built in 2012. This massive 19×18 oasis features its own dedicated sitting room, an oversized walk-in closet, and a luxurious spa-like bathroom complete with a custom five-foot walk-in shower. The three original bedrooms are generously sized with excellent closet space and share a second pristine full bath. The lower level is equally impressive, featuring a complete sub-grade remodel completed in 2023 that offers a sprawling 22×19 family room anchored by a cozy fireplace. Everything has been meticulously maintained for total peace of mind, boasting an incredible lineup of brand-new appliances and high-ticket mechanical updates. The home features a brand-new 2025 stainless steel refrigerator, stove, microwave, dishwasher, and washing machine. The major structural components include a new roof from 2014, new siding from 2014, and high-efficiency windows installed in 2008. Essential infrastructure is completely updated with a four-year-old heavy-duty ejector pump, a five-year-old sump pump, a 9 year-old water heater, and a high-efficiency furnace and air conditioning system installed in 2014. Crawl space is even climate controlled and poured concrete. Located in a premier Tinley Park pocket with top-tier schools, fantastic parks, shopping, dining, and easy commuter access, this expanded home handles a growing family with absolute ease.