Have you been waiting for a Mid-Century Modern residence to make your own? This rarely offered Penn Valley home has only had 2 owners and is waiting for its next steward. Situated on a highly desirable cul-de-sac, an acre of green, and private grounds with all utility lines buried underground. This 5-bedroom, 4-bath home delivers approximately 4,300 sq ft of expansive living space, balancing classic modern design with modern comfort, also featuring indoor/outdoor living with an in-ground pool. Additionally, more unfinished square footage for storage or other uses. Move-in ready yet primed for taking this space to the next level. Finishes include: Abundant sunlight from many windows, large vestibule for greeting guests, elegant slate floors in the vestibule & the dining room, inch oak hardwood floors throughout (some under the carpeting), and custom built-ins setting a sophisticated tone, vaulted or high ceilings & a floor plan integrating indoor and outdoor living and archetypal bifurcated floor plan of the era with a switch back stair design for easier living. Enter the bright, center hall vestibule flanked with a Sitting/TV room to the right and a bright, large Living Room to the left, and a large double-wide coat closet (think mud room behind closed doors). The SITTING ROOM is bright with a 10-foot ceiling and features an impressive wood-burning fireplace with stone from floor to ceiling. Custom cabinetry is ideal for displaying art, books, and a space for a large television. The LIVING ROOM offers a wide bay window flooding the space with light, large enough to fit a grand piano and entertaining numerous guests. Proceeding to the expansive DINING ROOM, including custom wood cabinetry, slate floors, and ample space for a 1012-person dining room table. Pass through aset of pocket doors to the eat-in KITCHEN, a large sun-drenched space (2 large skylights) with modern white cabinetry, granite counters, some newer stainless-steel appliances, tiled backsplash, engineered wood floors, ample room for multiple cooks, and a new glass sliding door to the patio; this is the hub of the home. Behind another pocket door is a large pantry and the laundry room with its own exterior access, perfect for managing the chaos of summertime fun in the pool! The Primary Suite &Private Bath & two large bedrooms sharing a full bath. Walking up the stairs, the first bedroom is the PRIMARY SUITE, large, measuring at 20 x 26 feet. Four windows fill the space with light, with two sets of closets (A walk-in and a double closet). The PRIMARY BATH features separate double vanities with ample storage, a Kohler jacuzzi tub, walk in shower, and private water closet. ADDITIONAL BEDROOMS are bright with large closets and a shared 3-piece HALL BATH with double vanity. THIRD FLOOR:: is dedicated to the 4th BEDROOM, nearly equal in size to the primary bedroom. Its distinctive features are the vaulted ceiling, private bath, and walk-in closet. Depending on your needs, this space is versatile, a shared childs bedroom, guest suite, Studio, workout room, or hobby room, all up to you. The lower level is a true showpiece a private guest bedroom or home office, half bath, and a full bath with direct pool access create a self-contained entertaining haven. All anchored by an original wood ribbed wall and a vintage1967 Revere Ware copper fireplace, a rare collector's piece that is as visually striking as it is historically unique, finished off by an original curved bar right out of an episode of Mad Men. Brand-new roof with new skylights and chimney cap, dual-zone HVAC, 200-amp electrical plus sub-panel, French drains+ sump pump system, grounds run-off water management systems. In the award-winning Lower Merion School District, minutes to Narberth, Ardmore, and 20 minutes to Center City via SEPTA. Rare opportunity for a Mid-Century home of this magnitude with the proximity to Center City and surrounding suburbs.