Set on nearly three-quarters of an acre in the storied Hickory Hill Cooperative, this sun-filled mid-century modern house offers a rare blend of architectural character, natural beauty, and community - just 30 minutes from Manhattan. Tucked into the historic hamlet of Tappan, Hickory Hill was conceived in 1950 as an intentional woodland neighborhood where homes and roads were carefully sited to preserve the rolling landscape of the former McGillicuddy Farm. The result is a place that feels worlds away from typical suburbia: quiet, wooded, deeply connected, and remarkably timeless. Designed within a community planned by acclaimed architect Danforth Toan, 35 Hickory Hill Road embodies the warmth and livability of classic mid-century design. Expansive windows throughout the home frame mature trees and lush lawns, filling the interiors with natural light. The main level features a desirable first-floor primary suite with bath, two additional bedrooms, another full bathroom, and an airy kitchen and family room wrapped in glass. A spacious living and dining area anchored by a brick fireplace creates an inviting setting for both relaxed daily living and entertaining. The finished lower level adds approximately 600 square feet of flexible space, including an additional family room, den, and full bath - ideal for guests, creative work, or quiet retreat. Outside, a screened porch offers the perfect perch for morning coffee, birdsong, and summer evenings under the trees. Life in Hickory Hill is unlike anywhere else in the Hudson Valley. Optional cooperative membership provides access to a private pool, tennis court, community garden and community center, fostering the kind of neighborly connection celebrated in Betty Friedan's famous 1956 Redbook article describing Hickory Hill as a modern version of “a big old-fashioned family.” For buyers seeking design, nature, and authentic community, this is a rare opportunity to put down roots in one of Rockland County's most quietly extraordinary enclaves.