[Note: This story has been updated to eliminate the erroneous information that indicated that Facebook had occupied only the 10th floor of the building it’s currently in and to correct the year Facebook opened its Austin office from 2011 to 2010. In addition, it has been updated based on an Austin Business Journal story published July 6.]

Update: A July 6 Austin Business Journal story published July 6 indicates that permits were filed for a 23,000-square-foot, $4.3 million employee cafeteria on the ninth floor, as well an estimated $200,000, four-story stairway connecting floors 9-12.

Since arriving in 2010 to much fanfare and a $1.4 million incentive package, Austin’s Facebook office has kept a relatively low profile. Now, according to contractor-location site Buildzoom, it might be expanding its downtown offices.

Buildzoom reports that recent building permits—24 of them so far in 2016, issued for suites 900 through 1200 at that address—for the building it occupies part of at 300 West Sixth Street, caught its attention.

According to the site’s blog, permit estimates for the work to date total $11.2 million, for a remodel across all floors, as well as the creation of accessory food service and stairways connecting the floors 9-12. It added that the total amount of Facebook space in the building measures 108,000 square feet.

Buildzoom noted that Facebook has hired Belfour Beatty Construction for the job. You can see all the permits filed for the project and more details at the Buildzoom link below.

• Facebook Is Expanding Their Real Estate Footprint In Austin [Buildzoom]

• Facebook plans to build $4.8 million cafeteria in downtown Austin [ABJ]