New Monolithic Dome Campus for Robert L. Duffy Charter High School Robert L. Duffy High in Phoenix — This charter school now has a campus of 4 Monolithic Domes, with exteriors adorned to resemble planets: Saturn, Earth, Neptune and Jupiter. (Robert L. Duffy High) State-of-the-art Structures — All four domes are totally solar powered and equipped with the latest technology. They provide 25,000 square feet of usable space. (Robert L. Duffy High) Busy Planets — At Duffy High, you can take computer classes on Jupiter, rehearse a stage play on Neptune, play basketball on Earth and work in the day-care center on Saturn. (Robert L. Duffy High) Rendering — The final bid process for the Duffy High School was completed in Jan. 2009. The building itself was $2.81 million or approximately $123 / Sq.ft. The current Arizona average for public schools is $201/sq.ft. The total project bid including site development parking utilities and street improvements was approximately $3.2 million. (Frederick Crandall)