With a nod to the millions of New Yorkers who live alone, studio apartments of less than 400 feet are setting new standards for efficiency. Now tiny living has arrived at the Brooklyn Cultural District with Caesura, a mixed-used building developed by Jonathan Rose Companies. It is a project of New York’s Department of Housing Preservation and Development, with 40 percent below-market-rate apartments.

This newly constructed building at 280 Ashland Place, on a former parking lot diagonally across from the Brooklyn Academy of Music, is 12 stories and has 123 units, including some of the smallest legal rentals in the five boroughs. Its 34 market-rate micro apartments are no more than 384 square feet and come with space-saving furnishings by Resource Furniture that allow tenants to leave their futons behind.