21 Sheffield Ter THIS ONE-OF-A-KIND MIDCENTURY MODERN HOME IS UNLIKE ANYTHING YOU'LL FIND IN THE SOUGHT-AFTER GREGORY SECTION! Nestled within a private backyard that feels like a resort, enjoy the heated pool, bluestone terraces, a pergola-covered patio, built-in hot tub, treehouse, basketball, & even a tetherball court...a spectacular secluded oasis! As you step inside, the midcentury modern bones are intact and equally breathtaking. The main level flows from an expansive living room - with wood-beamed ceilings, period fireplace - through to a large dining area and chef's kitchen with Viking stove, pantry storage, and built-in breakfast table. In true MCM form, windows create a seamless indoor-outdoor flow, which is highlighted by views to the adjacent den with its floor-to-cathedral ceiling windows that frame every season beautifully. The primary suite is its own sanctuary: generous bedroom, flex room ideal for WFH or yoga, walk-in closet, and a spa-worthy en-suite bath. Two spacious bedrooms share this level, each with custom built-ins, as well as an updated full bathroom. A stunning, floating staircase leads to the lower level where you'll find a fourth bedroom, full bath, separate entrance, and a massive rec room with full wet bar - the perfect space to gather. A private retreat that is minutes from everything: NYC commuting options, Rock Spring Golf Course, South Mountain Reservation, & Turtle Back Zoo. Homes this unique are a rare find - don't miss it!