Welcome to your dream home in the heart of Penn Valley, where timeless Main Line charm meets modern, turnkey living. Set on a beautifully manicured, flat backyard oasis, this meticulously maintained 4-bedroom, 3.5-bath colonial invites with stunning curb appeal, anchored by lush professional landscaping and an iconic Japanese maple. Step inside the elegant fieldstone-front entryway and discover sun-drenched spaces with original oak hardwoods, deep-silled windows, and a seamless floor plan designed for effortless entertaining and comfortable everyday living. The versatile living room features a classic, decorative fireplace and custom built-ins, flowing directly into a spacious, beamed family room with skylights and a cozy gas fireplace. French doors throughout the main level create an inviting indoor-outdoor connection, opening to a lovely brick patio and a rare, level backyard, ideal for play, parties, and outdoor upgrades. At the heart of the home, the stylish modern kitchen (boasting cherry cabinetry, granite counters, and GE Profile appliances) connects with a sunny breakfast room and abundant storage. Host memorable dinners in the gracious formal dining room, or work from home in the light-filled office with easy outdoor access. Upstairs offers a generous landing with convenient laundry, and a primary suite with two walk-in closets and a spa-inspired bathroom featuring soaring ceilings, a Palladian window, double vanities, and a luxurious walk-in steam shower. Three additional bedrooms, including a guest or au pair suite with dedicated stairs and an en suite bath, offer flexible living options for every need. A finished lower-level provides bonus flex space, perfect for playroom, gym, or media lounge, plus plenty of storage. Enjoy true convenience with an attached 2-car garage, extra parking, and a mudroom for all-weather access. Served by top-rated Lower Merion schools within walking distance, this move-in ready home combines prestige with the convenience of easy access to shopping, dining, and a Center City commute. Unlock the Main Line's premier lifestyle. Schedule your showing today before this rare opportunity disappears.