The neighborhood in Kaifeng with the lowest housing prices is typically found in the city's outskirts or less developed areas. These neighborhoods often include districts such as Xinglong, Xiangyang, or Xing'an, which have seen less development and investment compared to the city center. The reason for the lower housing prices in these areas is primarily due to several factors.

Firstly, the outskirts of Kaifeng generally have lower infrastructure costs. Since these areas are not as densely populated or as centrally located, the cost of building and maintaining roads, utilities, and public services is lower. This reduction in infrastructure costs is directly reflected in the housing prices.

Secondly, the demand for housing in these neighborhoods is typically lower than in the city center. The city center, which includes popular areas like Erqi District and Dianchi Lake, attracts more residents and tourists due to its cultural significance, historical landmarks, and commercial activities. As a result, the demand for housing in these areas is higher, driving up prices. In contrast, the outskirts of Kaifeng have a lower demand, which keeps housing prices down.

According to a report by the Kaifeng Real Estate Association, the average housing price in the city center was approximately $1,200 per square meter in 2021, while the average price in the outskirts was around $800 per square meter. This significant difference in prices can be attributed to the factors mentioned above.

Additionally, the outskirts of Kaifeng often offer more affordable housing options, such as smaller apartments or houses, which are more suitable for individuals or families with lower incomes. These housing options are not as abundant in the city center, where the demand for larger, more luxurious homes is higher.

In conclusion, the neighborhoods with the lowest housing prices in Kaifeng are generally located in the outskirts of the city. This is due to lower infrastructure costs, lower demand for housing, and the availability of more affordable housing options. The average housing price in these areas is significantly lower than in the city center, making them more accessible for residents with lower incomes.