Introducing 318 Rochester St, a stunning historic mid-century gem designed by local legendary architect J. Herbert Brownell. This property boasts two homes on a spacious 7,000-square-foot lot providing a multitude of options for the discerning buyer. Both homes have a classic mid-century design that effortlessly blends modern comfort and vintage charm. The main owner unit is 2bd/1.5ba, 1,492 sqft which features floor-to-ceiling windows, 18ft soldier cylinder block walls, a floating staircase, glass block windows, and post-and-beam architecture that creates an open, airy atmosphere filled with an abundance of natural light. The open floor plan offers seamless transitions between rooms, perfect for entertaining or quiet relaxation. Designed with ultra privacy in mind, these two homes, have separate yards, laundry rooms, and even a 2.5-car garage with alley access, plus additional carport parking, and even room for an RV. Front single level 1bd/1ba + bonus office is 979 sqft with clerestory & levour windows, original pristine Mosiac tile in bathroom, open kitchen to private patio deck and yard. Located just steps away from bustling 17th St., this property offers easy access to all the amenities Costa Mesa has to offer – from trendy eateries and boutique shopping to esteemed educational institutions like Mariners School. Preserve this mid-century gem and apply for the local historic register and Costa Mesa Mills Act.