Search for condos for rent in Union, CT on Apartments.com. With 0 available, you can find the right condo with the floor plan and amenities that fit your needs. When you rent a condo, you’ll likely rent from an individual owner rather than a property management company. This means units in the same building may have different features and layouts. Be sure to check out the photos and take a tour of the unit as you search for your Union home. There are some terrific Union neighborhoods with condos for rent, including Ellington/Somers/Stafford/Union, Mansfield/Tolland/Willington and Woodbrook. If you’re looking for a budget-friendly condo to rent, try looking in affordable nearby cities like Southbridge, Willington and Sturbridge.