Union South Bay includes 357 residential units within four- and five-story wood frame buildings wrapping two separate concrete parking structures. The larger building also houses approximately 30,000 square feet of retail fronting Avalon Blvd. and Carson St. The smaller building houses the leasing center and most amenities. Amenities include a fitness center, courtyard pool, community lounge, rooftop lounge with BBQs and yoga lawn, indoor/outdoor bar with beer on tap, dog spa and bike repair areas.