Embedded into a steeply sloped hillside, this 5000 sqft retreat nestles into its landscape, providing its homeowners with an intimate connection to nature. The interior surfaces are monolithic but serene, with a palette that draws directly from its wooded context. Every room in the home leads to communal pool deck, which is anchored by an existing, old growth tree. While one side of the home is fully underground, the opposite side embraces expansive views of Shelter Island.