This one-of-a-kind 1962 custom-built home blends timeless Mid-Century Modern design with thoughtful updates and vintage charm. Situated on a generous .51-acre lot in a quiet, well-established North Richland neighborhood, this 4-bedroom, 3-bathroom residence offers a rare opportunity to own a piece of architectural history—originally built for Eugene D. Clayton, the Director of the Nuclear Criticality Lab at Battelle, with original floor plans from the architect still intact. Inside, you'll find authentic MCM design elements including teak trim, vaulted ceilings, 7/8" paneled walls, large picture windows, and a stunning original stone fireplace and hearth. The kitchen has been tastefully updated with quartz countertops, a tile backsplash, refinished cabinetry, new flooring, and modern appliances, all while maintaining the home's iconic style. A formal dining room overlooks the fenced backyard and covered deck. Wall to wall windows surround the wood burning fireplace, flooding the living room with natural light that highlights the original hardwood floors. The spacious primary suite offers two closets and a 3 piece bathroom with period sink and newly tiled shower. Also located on the main floor is a half bath remodeled with original American Standard bath fixtures, a flex room/5th bedroom with new flooring and an office. The lower level features 3 bedrooms, remodeled bathrooms with new flooring, lighting, and bath/shower installations, another flex room and laundry. The home also features new light fixtures throughout, a new garage door opener, new carpet on the stairs, and an updated entryway with modern tile. Step outside to enjoy an expansive rooftop deck, perfect for entertaining or relaxing under the stars. The enormous backyard includes a storage shed, mature trees (including the largest beech tree in the Tri-Cities), and plenty of space for gardening, play, or future additions - perhaps a shop or pool! The circular driveway offers ample parking, including RV/boat parking, in addition to the attached two car garage. Located just one block from Leslie Groves Park and the Columbia River, you'll enjoy river access, trails, and community amenities just moments from your door. This home is truly a rare find—preserved, improved, and ready to be part of your story. Schedule your private showing today and experience the magic of this timeless North Richland treasure!