Set behind a gated entrance on 9+ private acres, 89-91 Mosle Road is a rare dual-residence estate offering luxury, privacy, and resort-style living. The 7BR, 8.1BA main house (91) features a dramatic 2-story foyer with herringbone floors, elegant formal rooms, a cherry-paneled office, and a stunning sunken great room with coffered ceiling and fieldstone fireplace. The newly reimagined 2024 Arclinea chef's kitchen is a showstopper with Wolf/Sub-Zero/Cove appliances, oversized island with dining table, built-in coffee bar, and separate prep kitchen. A private primary wing offers fireplace, multiple walk-in closets, and a spa-like bath with heated floors and Porcelanosa fixtures. The walk-out lower level includes a pub-style bar and billiards room, wine cellar, media/recreation space with projector, gym, and abundant storage. The 3BR, 4.1BA guest house (89) is a modern farmhouse retreat with 12' ceilings, cathedral living room with barnwood beams, two-story double-sided fieldstone fireplace, and walls of windows overlooking the grounds. Designer kitchen with marble counters and Bertazzoni range, first-floor primary suite, upper-level loft and en-suite bedrooms, plus a full gym and dedicated altitude training room. Resort-caliber grounds include expansive bluestone patios, heated pool with spa, fully equipped pool house, gated drive, lush lawns, and exceptional privacy in the heart of the Somerset Hills.