Elegance and Grace at 310 Jefferson Apartments. Inside our newly renovated Placentiaapartment community, you'll enjoy the convenience of a central location and the luxury of fresh, modern interiors. Exquisite details likedramatic vaulted ceilings, new in-home washer and dryers, quartz countertops, and a spacious balcony make you feel at home. We welcome your furry friends to our pet-friendly community, where they will enjoy two on-site dog parks. Our updated state-of-the-art fitness center, pool, and grilling stations make 310 Jefferson Apartments a hard place to leave.