The far suburb in Tianjin with the lowest housing prices is Binhai New Area. This region has seen a significant decline in property values compared to other suburban areas in Tianjin. The reasons for this are multifaceted.

Firstly, Binhai New Area has been experiencing a slowdown in economic growth, which has led to a decrease in demand for housing. The area was initially developed as a showcase for China's economic reforms and modernization, but over time, it has faced challenges such as high debt levels and a lack of sustained investment. This has resulted in a surplus of housing supply, driving down prices.

Secondly, the transportation infrastructure in Binhai New Area is not as developed as in other parts of Tianjin. This lack of convenient transportation options makes the area less attractive to potential homebuyers, particularly those who work in the city center. The lack of infrastructure also affects the overall quality of life, which can further deter buyers.

According to data from the Tianjin Statistics Bureau, the average housing price in Binhai New Area was approximately 10,000 yuan per square meter in 2021, which is significantly lower than the city's average of around 20,000 yuan per square meter. This price difference is even more pronounced when compared to the central districts of Tianjin, where prices can exceed 30,000 yuan per square meter.

Additionally, the government's policies have played a role in the low housing prices. The Chinese government has implemented various measures to control housing prices, including tightening credit conditions and increasing land supply. These policies have had a more significant impact on Binhai New Area, where the government has been more aggressive in land supply and infrastructure development.

In conclusion, Binhai New Area in Tianjin has the lowest housing prices among the far suburbs due to a combination of economic challenges, transportation limitations, and government policies. The data from the Tianjin Statistics Bureau supports this conclusion, showing a clear price discrepancy between Binhai New Area and other parts of the city.