Union Square Lofts | 333 W Hubbard Condos is one of Chicago's residencies in Gold Coast, on the city's North-Central side. The architecture of Union Square Lofts | 333 W Hubbard is an easily identifiable trait of Gold Coast. The average selling price for properties in the area were $2,392,000 which is roughly $609 /SqFt. Union Square Lofts | 333 W Hubbard is located in zip code 60610, home to families, with an average size of 2.3 members.