[Techtaffy Newsdesk]

E-commerce company Square will relocate its corporate headquarters to 1455 Market Street in the Mid-Market neighborhood of San Francisco. The company expects to move into its new location in mid-2013.

Square currently has 400 employees, and plans to employ nearly 1000 people by the end of 2013. It moved into its first office—the Chronicle Building—in December 2009 when the company had 10 employees.

Jack Dorsey (Co-founder and CEO,  Square):  Square businesses have already facilitated more than $300 million in commerce in San Francisco, and there’s so much more we can do to make a difference in the city and around the world.

Building renovations will begin at the end of 2012 to construct an open, collaborative space, a roof deck, chef’s kitchen, and other amenities for employees.

Square also has offices in New York and Atlanta.