Zillow Group gobbled up a pair of floors at Russell Investments Center in Seattle, referred to by some as Zillow Tower because the real estate information company has taken over a huge chunk of the building in recent years.

The latest deal involves Zillow sub-leasing the seventh and eighth floors in the building from Nordstrom. With this deal, Zillow now controls those two floors plus floors 29 through 42 in the 886,000-square-foot structure at 1301 Second Ave. in Seattle, Zillow Senior Manager of Public Relations Emily Hefter said. Zillow’s footprint in the building now exceeds 385,000 square feet with the latest deal, or approximately 43 percent of the office space in the structure.

Puget Sound Business Journal first reported on the latest Zillow expansion.

Zillow employed just 300 people worldwide when it moved into the Russell Investments Center in August 2011. Today it has 3,300 people spread across 10 offices, with 1,500 working out of Russell Investments Center.

Zillow’s last expansion in the building came a little over a year ago, when it grabbed two floors totaling about 38,000 square feet.

Zillow has spread throughout the tower as Nordstrom has put several floors on the market. Much of that has been taken by Oracle, which leased 175,000 square feet last year, and job search company Indeed in a 44,000-square-foot deal.