the most recently constructed engineering building is bill and melinda gates hall which opened in 2014. the building, funded in part by a $25 million gift from the bill and melinda gates foundation, is located across campus road from barton hall and east of phillips hall, across hoy road, on the site of a parking lot for hoy field and grumman squash courts. the building is home to the department of computer science, previously located in upson hall, and the department of information science, formerly located off campus. the 100,000 square foot building was designed by pritzker prize winning architect thom mayne. the budgeted cost of the building was $60 million and was funded entirely from outside sources without the need for any additional debt. gates hall is expected to earn at least silver leed certification. occupancy of the building began in early 2014 and the building will be dedicated in october 2014.