Stately yet comfortable, this lovely 5000 sq. ft. 5 BR, 6 BA stone colonial in Penn Valley combines stunning millwork and architectural gems from the original Chauncey estate mansion with a vast array of today's most sought-after features. Among its many offerings are gorgeous hardwood floors, a main suite with a massive main bath, a large island kitchen, amazing family and office spaces, and a generous, flat lot, all ideally situated on one of Penn Valley's most cherished streets. From the spacious entry foyer, step through the milled archway down to the living room with hardwood floors, a wood-burning, mantle-accented fireplace, deep-silled windows, and french doors to the bluestone patio that spans most of the rear of the home. To the left of the center hall entry foyer, another milled archway invites you to the dining room, offering 2 built-in lighted cabinets and its own wood-burning fireplace. Enter the kitchen with a quartz-countered center island that seats 5 and is studded with 4 pendant lights. Completely surrounding the island you'll find abundant wood cabinetry, some with glass fronts, granite countertops, stainless steel appliances, and everything you'd expect in a high-end kitchen: gas cooktop with grill, built-in main oven, convection/microwave oven, warming tray, SubZero refrigerator, Bosch dishwasher, separate wine refrigerator and filtered water system. Continue from the kitchen to the exceptional family room offering a gas fireplace, floor-to-ceiling casement windows, multiple french doors that exit to the patio and yard, an exposed stone wall, skylights, and a full bath. This area also provides driveway access, closet space, and a separate access to the 2-car attached garage with epoxy flooring. Working from home will be no problem in the fabulous office teeming with natural light and built-in shelving. A hallway off the kitchen leads to the large, flat, fully-fenced and garden-ready backyard and patio. Up the center stairs is the main bedroom with 2 walk-in closets and more built-in storage, adjoined by a huge main bath complete with a tiled shower, private toilet room, jetted tub and double vanities topped with travertine tile. The upstairs level offers 2 additional, spacious en suite bedrooms with generous closets. A back staircase from the kitchen brings you to the 4th bedroom and hall bath, a cedar closet, and a 5th bedroom currently used as a combined 2nd office/laundry room. The lower level provides a great finished flex space that includes a game area, dance/exercise section, an arts-and-crafts corner, a decorative fireplace, and another full bath, plus a mechanical/storage room and an outside entrance. Bonuses include a 240 volt charging station in the garage, a paver driveway, and a walk-up attic that could be finished for even more living space! All the tremendous offerings of this lovely, expansive, stone colonial coupled with the convenience of its prime Lower Merion location and schools will make you thrilled to call it your new home.