Not enough space?

Google owns the biggest building by square footage in New York City, the 111 Eighth Avenue building previously owned by the Port Authority and one of the most wired buildings in the world. Google finalized the $1.9B purchase at the end of 2010 and has continued to also occupy office space in the Chelsea Market building across the street.

The WSJ reports (paywall) Google now…

wants to expand further in the city, launching a search for enough space to hold more than 3,000 employees, according to several real-estate executives familiar with the hunt.

The Internet firm has been in discussions with several landlords about leasing at much as 600,000 square feet in Manhattan—about half the size of the Chrysler Building. A space that large would represent a roughly 80% expansion for the company, which first established a small outpost in New York in 2000.

What’s interesting about this expansion plan is that Google hasn’t even filled out its Chelsea offices, still leasing many offices out to other companies and data centers that signed leases before the 2010 purchase.