This Portsmouth bedroom now includes an efficient workspace for its 11-year-old occupant.

Working from home doesn’t necessarily require a lot of space. A closet-based office, like this one designed by Michael K. Chen in a 390-square-foot Manhattan studio, may be enough.

The design is sleek, and it can double as a writing desk, TV table, or display table. When you’re done, it easily folds down to a super slim shape. And at just 20 pounds, it’s easy to transport.