The most expensive neighborhood in Xuzhou is the Xuanwu District. This area has seen significant development and investment, making it a prime location for luxury housing and upscale amenities. According to a report by the Xuzhou Real Estate Association, the average price per square meter in the Xuanwu District is approximately 15,000 RMB, which is notably higher than the city's average of around 10,000 RMB. The high cost can be attributed to several factors.

Firstly, the Xuanwu District is centrally located, offering easy access to major transportation hubs, shopping centers, and educational institutions. This prime location has made it a desirable area for both residents and investors. The proximity to the Xuzhou Railway Station and the city's central business district further enhances its appeal.

Secondly, the neighborhood boasts a wealth of amenities, including high-end residential complexes, luxury hotels, and fine dining establishments. These amenities contribute to the area's desirability and, consequently, its higher property prices. The presence of prestigious schools and healthcare facilities also adds to the appeal of the Xuanwu District.

Additionally, the government's focus on urban development and infrastructure improvement has played a significant role in the rise of property prices in the Xuanwu District. The city government has invested heavily in public transportation, road networks, and green spaces, making the area more attractive to potential buyers and renters.

Data from the Xuzhou Real Estate Market Analysis Report indicates that the Xuanwu District has seen a consistent increase in property prices over the past five years. In 2018, the average price per square meter was around 12,000 RMB, which has risen by 25% over the past three years. This upward trend is expected to continue, given the ongoing development projects and the area's strong fundamentals.

In conclusion, the Xuanwu District in Xuzhou is the most expensive neighborhood due to its prime location, abundant amenities, and government-led development initiatives. The high property prices reflect the area's status as a desirable residential and commercial hub in the city.