The office market is in trouble. Here's what real estate experts say all that space could be used for instead.

An empty, unfinished office floor compared to the kinds of offices that landlords are offering as spec space.Carlos Avila Gonzalez/San Francisco Chronicle via Getty Images and NurPhoto/Getty Images … [+4472 chars]

The office market is in trouble. Here's what real estate experts say all that space could be used for instead.

The office market is in trouble. Here's what real estate experts say all that space could be used for instead.

The office market is in trouble. Here's what real estate experts say all that space could be used for instead.

The office market is in trouble. Here's what real estate experts say all that space could be used for instead.

The office market is in trouble. Here's what real estate experts say all that space could be used for instead.