Citigroup is transforming its battery rooms at their facility in Roanoke to data halls and data hall support, according to filings with the Texas Department of Licensing and Regulation.

The facility, which is located at 931 Litsey Road, is 251,349 square feet. The estimated cost of the project is $500,000. The renovation is slated to start March 1 and is expected to be completed by Dec. 1.

Citigroup is a preeminent banking partner for institutions with cross-border needs, a global leader in wealth management and a valued personal bank in its home market of the United States, according to its website. The company does business in more than 160 countries and jurisdictions, providing corporations, governments, investors, institutions and individuals with a broad range of financial products and services, according to a company website.

Citigroup was formed in 1998 from the merger of Citicorp and Travelers Group Inc, according to Citigroup's website, in a $140 billion transaction.