Oasis ••• There is an octogonal Bates and Bates brass sink dramatically set into the granite and Silk Dynasty black textured silk wallpaper. A settee in black and gold Schumacher fabric with gold Scalamandre welting is perched to one side. Japanese, Persian and Indian accent pieces complete the room. The dining room, while quite large, invites you in, perhaps for saki and sushi. Shoji screens in off-white provide an authentic window treatment. Custom-made black enameled doors close the room off from the rest of the house. Silk black and taupe wall covering from Silk Dynasty in stripes is an elegant and subtle backdrop. The carpet, a geometric petit point with a matching black border by Schumacher, blends in with the wallpaper. "I didn't want the room to look like a conference room," says Ms. Winton-Feinberg, explaining the decision to design two round glass- topped tables, rather than one large, long table. The tables have a black lacquer and brass base, and the chairs, made in New York, are black enamel with 24 karat gold leaf painted on. The coordinating fabric , is a black-on-black wool stripe with black and gold cording. Each table can seat six. "It's more intimate this way," says the owner. The buffet, of black ash with floating brass accents, was designed by Ms. Winton-Feinberg and made in Detroit. riWo old gold Chinese masks, found buried in an old antique store in New York, are perched above the buffet. An eight-foot-tall black, gold and cinnabar screen, a reproduction from China, commands the back wall. With eight intricate panels, it can be stretched out its full twelve feet. Directly across the foyer is the library. One whole wall is filled by a magnificent book-matched Mikasa ebony wall unit. It is ten feet tall and sixteen feet long, and looks like it was built into the room. It houses the TV, stereo system and other items. It has an almost zebra effect in golden cinnabar and dark brown and black The large indoor built-in swimming pool by Jack Roberts is accessible from the kitchen. ""'"1111111111100-- wood. Large shelves are filled with family photos and knick-knacks. rBisio Marge Carson sofas in Lee Jofa fabric with black tone-on-tone accent pillows invite you to get cozy. A 60-inch square black lacquer with bronze glass beveled top continues the Oriental feel, as do black and grey Chinese accent chairs. Past the foyer and staircase is the two-story living room. The room is a mirror-image of itself, with two identical seating groups. It creates an elegant Oriental effect in simple, striking black and cream. Couches in ivory wool fabric flank each wall. Matching coffee tables have 3/4-inch plate glass that is handpainted with black and gold and sit upon round black enamel bases with brass caps. Chairs border the couches. Several couch accent pillows and ottomans FALL '91 45