Six homes with built-ins that boost storage and, ultimately, space

Want to maximize space in your apartment (and who doesn’t in New York City)? Consider built-ins. What you give up in space, you gain in storage when your bookshelves, cabinets, drawers, and closets are incorporated into the existing walls. Here, some prime examples.

Built-in cabinets, bookshelves, and a desk transform the second bedroom of this two-bedroom, two-and-a-half-bath condo at 160 West 66th Street (listed at $3.895 million) into a fully functional den/study/office for two.