44.4 If the time allowed in the Tender for building works to commence expires before all the Clauses and all the Special Conditions of this contract governing the commencement of building works are satisfied, the builder shall be entitled to increase the contract price by way of a contract price adjustment of 4.5% of the price shown in Schedule 1.
This appears to be a special condition added by Champion Homes to the standard HIA contract, and quite self-serving. Usually project builders like them arrange all the necessary approvals, and prepare all the paperwork. So, if there is delay caused by them preparing all the necessary paperwork, they can easily pocket sweet additional $23K on a $500K contract.