Google is looking to double the size of its Kirkland, Washington complex. The offices, which are just down the road from Microsoft's headquarters, will play home to more engineers. The current complex comes in at roughly 180,000 square feet. The expanded space will be leased from SRM Development.

SRM Development owns the land next to Google's current space and will start construction on the new buildings in January. The new space is expected to be complete sometime in 2015.

"We are excited to expand our presence in Kirkland, where we have one of the largest engineering offices outside of our headquarters in Mountain View," Google said in a statement.

Google already has more than 1000 employees in Washington state. The Kirkland office is home to the engineering teams responsible for Google+ and Chrome and should remain a purely engineering complex.

The new space will consist of two buildings. Underneath the two stories of office space will be two levels of parking garage. The two buildings will be connected with an atrium.