Unknown. By inquiring official website of Hefei Construction Bureau, we know that there is no relevant information and documents about the demolition of Chenlaogang in Hefei, so we can't know the specific time of the demolition of Chenlaogang in Hefei. Hefei, referred to as "Lu" or "He", was called Luzhou, Luyang and Hefei in ancient times. It is a prefecture-level city and provincial capital under the jurisdiction of Anhui Province, and a sub-central city of China Yangtze River Delta urban agglomeration approved by the State Council.