Hi. nblacksmith has an excellent point. Location is key. The closer to the beach, obviously the more expensive. It also depends on what you mean by medium house. Aprox. how many feet? Would you like Front/back yard? My husband is a contractor in LA County and Ventura County. I hesitate to tell you what the house he just built is listed for. Try looking up a real estate agency out here. They will give you a better idea and have listings and prices in your range. Good Luck!