Duolingo is moving out of its headquarters, a corner office building in Pittsburgh’s East Liberty neighborhood where the online language learning platform matured into a publicly traded company worth billions of dollars.

Hanna Commercial Real Estate is advertising the roughly 77,000-square-foot property as available for sale or lease. The three-story building at the corner of Penn Avenue and South Beatty Street is distinguished by a pink and white mural on two of its sides.

The tech firm is consolidating its Pittsburgh operations in Liberty East, a mixed-use tower just a few blocks over that’s anchored by a Whole Foods supermarket. This building will serve as the new headquarters. Duolingo is in the process of doubling the amount of space it occupies there to about 150,000 square feet.

The transition will take about a year.

Duolingo did not return requests for comment.

Gary Wilson, a principal with Hanna Commercial Real Estate, envisions another company making the space Duolingo is vacating its home base. He touted the office’s open layout as well as its amenities, including a cafeteria, private fitness center and rooftop deck.

“For someone who can’t fit into Bakery Square or can’t pay Bakery Square prices, this is a low-cost alternative,” Wilson said.

The current headquarters also houses Duo’s Taqueria, a Mexican restaurant owned by Duolingo. The taco joint is seeing strong sales and Duolingo wants to keep it in place if possible, according to Wilson.

Duolingo was founded in 2011 and moved from Shadyside to the 5900 Penn Ave. building in 2016. It has more than 850 employees spread across several offices worldwide and upward of 50 million daily users.

Though best known for offering a low-barrier way to learn a new language (and its cheeky marketing), Duolingo has broadened its offerings in recent years. In 2023, the company added math and music courses to its flagship app, eliminating the short-lived Duolingo Math app, and in 2025 started teaching chess.