3421 Princeton Avenue Experience elevated living in this immaculate Highland Park residence, blending timeless luxury with everyday livability just steps from Armstrong Elementary. Designed to feel refined yet welcoming, the home features an open, light-filled floor plan ideal for entertaining and daily living. Offering 6 bedrooms, 6.2 baths, and five fireplaces, the interiors are richly appointed throughout. The chef’s kitchen is a true centerpiece with Wolf appliances, a built-in Sub-Zero refrigerator, a Miele coffee system, and seamless flow into a temperature-controlled wine cellar connecting both the kitchen and formal dining room. The dining room is a standout with Venetian plaster walls and a fireplace, creating an elegant setting for gatherings. The spacious primary suite serves as a serene retreat with fireplace, private patio, spa-inspired bath with dual water closets, oversized walk-in closet, soaking tub, and walk-in shower. All secondary bedrooms feature en-suite baths and walk-in closets. A second-level mini kitchen adds convenience. Additional highlights include leathered bar ceilings, a private first-floor office, and French doors opening to landscaped grounds with artificial turf for seamless indoor–outdoor living. A custom mudroom leads to the epoxy-finished garage. The home sits on a 65 x 150 lot and is crowned by a Premium DaVinci slate-style roof. A detached back house, not included in the square footage, features a golf simulator on the first level and a private movie theater on the second, and can easily convert back to a three-car garage. Additional amenities include a built-in grill, integrated audio, and camera system. A rare opportunity to enjoy refined comfort, thoughtful design, and premier walkability in the heart of Highland Park.