One of the giants in the Nutmeg State job market is expanding.

Hartford Life, a unit of Hartford Financial Services Group Inc., Hartford, will be building a 450,000-square-foot campus in Windsor, Conn., Hartford Financial says.

Windsor already is the headquarters town for LIMRA International.

The new campus will start by providing space for 2,000 Hartford Life employees, and the site is big enough for Hartford Life to add 150,000 more square feet of office space, Hartford Financial says.

Hartford Financial, a company that has been doing business in Connecticut since 1810, now employs a total of 30,000 people around the world and 13,000 in Connecticut.

Hartford Life alone employs 3,800 people in Connecticut, and many of them now work at a 611,000-square-foot facility in Simsbury, Conn.

Hartford Financial also has headquarters offices in Hartford and additional offices in Southington, Conn.

Hartford Financial will be breaking ground on the Windsor campus in spring 2007 and hopes to complete the first phase by mid-2008, the company says.

Hartford Financial will be emphasizing use of recycled construction materials and energy conservation, the company says.