18 Real Estate Listings for Sale in Union

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Search for Union luxury homes with the Sotheby’s International Realty network, your premier resource for Union homes. We have 18 luxury homes for sale in Union, and 42,240 homes in all of Illinois. Homes listings include vacation homes, apartments, penthouses, luxury retreats, lake homes, ski chalets, villas, and many more lifestyle options. Each sale listing includes detailed descriptions, photos, amenities and neighborhood information for Union.