Mission Sierra offers spacious one- and two-bedroom apartments in Union City, CA, designed with private balconies or patios, generous closets, and pass-through kitchens. This pet-friendly community features a swimming pool, spa, fitness center, clubhouse, playground, and on-site laundry facilities. Residents benefit from covered parking and lush landscaped courtyards that create a tranquil living environment. Conveniently located near BART and I-680, Mission Sierra provides direct access to San Francisco, Oakland, and San Jose. These Union City apartments combine comfort, convenience, and connectivity in the heart of the Bay Area.