Home for sale at 416 Walnut Pl. Costa Mesa, CA 92627 with the MLS NP18030908 on WeirProperties.com. The home at 416 Walnut Pl. Costa Mesa, CA 92627 is currently for sale and features 4 bedrooms, 5 bathrooms, 3096 sq. ft. of living space, and is listed for sale at $2,295,000. You can search Orange County coastal properties for a home, a house, a condo, or a patio home to find real estate in Newport Beach, Newport Coast, Dana Point, or all of Orange County, California. You are viewing the official SoCal MLS listing details of the home for sale at 416 Walnut Pl. Costa Mesa, CA 92627 which is MLS # NP18030908. The home has been listed on this site for 41 days and is found in the Eastside South (Escm) neighborhood.