Ninth people should be taken in the demolition permit to determine the scope and duration of the demolition, the implementation of housing demolition.
Need to extend the demolition period, the demolition should be before the expiration of the demolition period, apply to the housing demolition management department for an extension of the demolition; The house demolition management department shall give a reply within 10 days from the date of receiving the application for extension of demolition.
Therefore, although I also think it is unreasonable, there is no restriction as far as the provisions are concerned.
You can go to the local housing authority, or the relevant government agencies to reflect and petition.