Plaza On Dewitt | 260 E Chestnut Condos is one of Chicago's residencies in Gold Coast, on the city's North-Central side. The architecture of Plaza On Dewitt | 260 E Chestnut 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. Plaza On Dewitt | 260 E Chestnut is located in zip code 60610, home to families, with an average size of 2.3 members.