There are also furnished self contained apartments in Gallarate that Agusta use. They are on via San Rocco. Central to the four Agusta facilities in the area, and there are good restaurants, bars, and nightclubs in the town.
The drive to Sexto would be 15 min, Vergiate 10 min, Somma 10 Min, Cascina 10 min. Not sure what the prices for the apartments are though, but they are very nice.