This is a house with a LOT of wow factor! If youre a fan of mid-century modern design, prepare to be charmed by this authentic gem. Its soaring ceilings, sun-drenched rooms, and a seamless flow between indoor and outdoor spaces create an inviting, one-of-a-kind home. Thoughtfully designed in 1956 by a premier Philadelphia architectural firm, Carroll, Grisdale & Van Alen, on nearly two acres in Penn Valley, it presents a rare opportunity to own a piece of architectural history. The house wraps around a beautiful flagstone courtyard and pool, with a pool house to complete the 4th wall. Go up the winding flagstone path to enter through dramatic double doors into a striking foyer, complete with a water feature, statement chandelier, and a Hollywood-style powder room. To the right, the private primary suite awaits, complete with a cozy gas fireplace, dual en-suite bathrooms, and custom walk-in closets. Adjacent to this suite is a spacious living area, currently utilized as a gym but previously showcased as an art gallery. This wing also provides access to an expansive lower level, offering abundant storage and a Swedish sauna. On the opposite side of the foyer and pool, the main living areas unfold, featuring a generous living and dining space, a family room adorned with a fireplace and built-in bookcases, a kitchen, powder room, laundry room, and three bedrooms, each with its own en-suite bath, Two bedrooms have their own private courtyard, the third bedroom currently serves as a convenient pool room for post-swim relaxation, though the pool house itself also offers a full bath. The kitchen stays true to its modernist roots, enhanced by three floor-to-ceiling pantries that provide ample storage. Architectural details like soaring ceilings with wooden beams, abundant windows, a wall fountain by the pool, and an abstract mural adorning the pool wall further highlight the homes mid-century modern charm. Finally, off the main house there is a separate section with its own entrance features three flexible rooms including a full Jack and Jill bath and a powder room, making this wing ideal for offices, guest suites, or in-law living. Recent upgrades encompass a new HVAC system, an active radon system, new pool mechanicals and paving stones, retaining walls and carpeting. This sprawling ranch, with its five to six bedrooms and six full baths, is perfectly suited for entertaining, remote work or multigenerational living. Each bedroom offers peaceful garden or courtyard views, making every space feel like a private retreat. Additional features include a two-car attached garage and a detached storage shed. Bonus: it s in the award-winning Lower Merion School District with easy access to Center City.