A couple of years ago, 6sqft featured the notable design of this contemporary Montauk getaway just steps from a private ocean beach. The owners worked with Berg Design Architecture to create a lofty home on land they purchased for $970,000 in 2013. The result was an ideal summer retreat that’s also cozy and warm in winter. In “upside down” house fashion, the majority of the home’s bedrooms are on its guest-friendly lower level with easy access to the pool, and its entertaining spaces are upstairs along with the ocean views (h/t Wall Street Journal). The home is now on the market for $6,495,000.