The district with the most expensive houses in South Mountain is typically the area surrounding the South Mountain Park. This region has seen a surge in property values due to its desirable location, scenic views, and amenities. According to data from the Phoenix Association of REALTORS, the average sale price for homes in this area has been consistently higher than in other parts of South Mountain. The proximity to the park, which offers numerous recreational activities, and the availability of high-end amenities such as golf courses and luxury resorts contribute to the premium pricing. Additionally, the neighborhood's strong sense of community and its strategic location near major transportation routes and shopping centers further enhance its appeal to affluent homeowners.