Welcome to 1600 Flat Rock Road, a beautifully finished white brick Colonial estate offering over 4100 sq/ft of elegant living space. Nestled on nearly 1 acre in Penn Valley, offering unique amenities including an updated in-ground pool and a tennis court. This 4-bedroom, 3.5-bath home is sure to impress even the most discerning buyer. Enter into the two-story foyer with a graceful curved staircase that sets the tone for the contemporary and classic styles found throughout. Step down into the spacious family room with an abundance of natural light and the adjoining dining room, creating an ideal space for hosting dinner parties and gathering with loved ones. On the opposite side of the foyer, a versatile living room/study/den features parquet floors, a gas fireplace, and built-in bar, adding a sophisticated mid-century modern flair to the space. The updated kitchen features a 4-person seated island, white quartz countertops, dual sinks, and custom Porcelanosa cabinets. A convenient laundry room, half bath, and access to the two-car garage complete the first level. Upstairs, the primary bedroom offers wall-to-wall closets and a luxurious en-suite bathroom featuring a tiled walk-in shower, soaking tub, dual vanity, and a separate water closet. The adjacent bedroom has been customized into a dream walk-in closet, providing ample space for your wardrobe and daily preparations, that would be easily repurposed for another bedroom. Across the open landing, two additional bedrooms with generous closet space share a full hall bath with a shower/tub combo and dual vanity. The fully finished, walk-out lower level provides valuable flexible living space, perfect for an au pair or in-law suite, or for entertaining. It includes a brand new full kitchen, living room, bedroom, and a full bathroom with changing area, the perfect area for pool parties and sleepovers. Walk right out of the basement to your own private oasis with a large deck and an in-ground pool with hot tub. Walk up the slate stairs to the rear deck and the fenced-in tennis court, easily convertible to a multi-sports court, basketball, pickle ball or a children's play area. Perfectly situated in the award-winning Lower Merion School District, this magnificent home offers easy access to center city, restaurants, parks, and all that Penn Valley has to offer. Don't miss this incredible opportunity, schedule your private tour today!