The William Gates Building, or WGB, is a square building that houses the Computer Laboratory at the University of Cambridge, on the University's West Cambridge site in JJ Thomson Avenue south of the Madingley Road in Cambridge, England.

[1][2][3] Construction on the building began in 1999 and was completed in 2001 at a cost of £20 million.

Opened by Maurice Wilkes, it was named after William H. Gates Sr., the father of Microsoft founder Bill Gates.

[4] The Bill & Melinda Gates Foundation provided 50% of the money for the building's construction.

[7] Its energy-saving measures include:[8]