francis rojas is dublin high's principal. his former office was a science room. >> it's our humble beginnings of the brand-new high school. >> reporter: in just a matter of weeks the big move. >> new office smell, i feel like it's christmas morning. >> reporter: the district says between 2010 and 2020 the dublin unified school district grew by 92%. a second high school has been decades in the making to ease overcrowding. >> really small footprint, but all of our buildings are two and three stories tall except for the gymnasium and locker room. >> reporter: with a grand student union, lecture happen, science labs and a 31,000 square foot gymnasium. phase two and three are still under construction and boxes filled with chairs and desks still need unpacked, but the mood right now -- >> very exciting. population has just boomed, as you can see when you drive through dublin. what used to be empty fields or town parks are now housing developments. >> reporter: not to mention, a shorter commute by 25 minutes for some. >> if a studen