THE ELLIPTICAL HOUSE This is a sculpture to live in.  It was designed and built by Nova to serve ecology, having a small footprint on earth, and giving back land to nature.  It was made mostly of old recycled wood from a demolished Brooklyn church - noble wood with its own history.  “I wanted this house to have a soul.”  The 2,800-square-foot two and a half-story space is covered in modern fluted roofing to match the color of the sky.  The house is based, Nova says, on an ecological idea: It's 40-by-40 at the widest point and 20-by-40 at the base,  "which means we are giving back half of the house to the planet." The interior is original, playful and open to the surrounding nature.    There's a rough-hewn, sculptural quality to much of the structure, with elegant accents - elaborately carved and constructed doorways, cantilevered stairs, lofts, “couchettes” and curved kitchen cabinetry.  The house also features Novas handmade wooden furniture.  The eye is delighted and surprised wherever it looks. It is a well-known landmark in the Hamptons. (Not presently open to the Public)