San Roque Landmark listing. One of San Roque’s most cherished “corner” properties is for sale for the 1st time in 30 years. 3101 Calle Mariposa is an original Tudor-style built in 1929 with all the charm and potential that comes with a period architectural home in one of Santa Barbara’s finest neighborhoods. Along with a newer master suite addition providing sufficient space for today’s living, there are a total of 4 bedrooms, 3 baths in approx. 2300+/- square feet.