Historic setting. Stylish living. Welcome to Union At Carrollton Square. Our luxury apartments for rent in Carrollton, Texas, are located in beautiful downtown Carrollton. The hardwood-style floors and designer color schemes are the perfect blank canvas for your home decor style. Complete with a gourmet kitchen, a garden soaking tub, and a private balcony or patio (in select homes), our upscale floor plans are filled with sumptuous features and desirable upgrades. When you want to unwind, simply step outside your home. The professionally landscaped grounds are home two two sparkling, resort-inspired swimming pools as well as a 24-hour fitness center and a convenient running and biking trail.