The project is expected take 18 months to complete and will double the company's data centre footprint.
Search engine company Google is planning to invest $185m to expand its data centre in Finland.
The expansion is part of the company's strategy to meet the demand for internet usage and data storage capacity.
The data centre is situated in a former paper mill in the south-eastern town of Hamina on the Baltic Sea coast.
Google paid $52m for the paper mill property, including 410 acres of land and invested another $198m to equip it.
The data centre, which started its operations in September 2011, uses sea water through tunnels built in 1950s from the Bay of Finland to reduce its cooling costs.
The project is expected take 18 months to complete and will double the company's footprint at the site.
In April 2012, Google said it will invest over $300m to build Asian data center in Taiwan which is scheduled to complete early next year and commense operations by the end of 2013.
The new centre will be the third one built in Asia by Google after Singapore and Hong Kong.
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