Two beautifully appointed homes make up this timeless 1.5-acre compound in Amagansett. Appealingly classical, the 5,760-square-foot, five-bedroom main residence offers all the elements of fine coastal living, including numerous porches and verandas. The interiors were designed by Robert Stilin, favored around The Hamptons for his elegant rusticity, which unites earthy sun-faded tones and subdued, sophisticated natural hues with fine vintage furniture and modern accents. Across a rolling expanse of verdant lawn and mature specimen trees lies the 2,290-square-foot guesthouse, with its four bedrooms and yoga or ballet studio. Tucked into a corner of the estate is a heated gunite pool and spa with a poolhouse and an open-air shower.