Looking for office space in  San Francisco? Look no further than Twitter as the 140-character  social network is now subleasing more than 180,000 square feet of its headquarters.

The space is available immediately and can house about 1,400 employees, making it the single largest sublease space available in San Francisco, according to the San Francisco Business Times, which first reported the story.

Twitter, which has spent the past couple of years struggling to boost user growth and ad revenue, recently listed the space through brokerage firm Cresa San Francisco. Twitter's decision to place such a large portion of its headquarters up for sublease--the available space represents nearly a third of its San Francisco footprint--is the latest sign of the company's struggles. Following the layoff of more than 300 employees in October, the company is not likely to need all its office space any time soon.

"We're always looking at ways to use our office spaces more efficiently and effectively. We remain committed to our home in San Francisco's Mid-Market area," Twitter said in a statement, according to the Business Times.

Asking rent for Twitter's available space is listed as negotiable, and four spaces are up for grabs: three blocks are each about 35,000 square feet and a fourth space is nearly 79,000 square feet. Each space is fully furnished and includes at least one kitchen, lounge areas, and a mother's room. One space also includes a coffee bar, according to the  marketing materials.

The company moved into the large facility in 2012, helping transform San Francisco's Mid-Market neighborhood into a tech hub that now houses other promising tech firms such as Uber and Square, as well as a variety of smaller startups. 

Before moving into the location, Twitter threatened to relocate out of San Francisco unless the city gave the company a tax break.

The social network, which is San Francisco's second-largest tech employer, had listed one floor for sublease in 2015 but has thus far failed to find any suitors, according to the Business Times.

Shareholders were hoping the return of co-founder Jack Dorsey as CEO last summer would give Twitter the lift it needs, but a year later, Dorsey has done little to change the company's trajectory. Twitter delivered a disappointing earnings report last month, and it's outlook for the next few months is grim. The company is  betting that live video of events, such as Thursday night NFL games, can turn its fate around, but that remains to be seen.