Delays in property developments are not unusual. Weather events, supply chain issues, labour shortages, and regulatory hurdles can all push out construction timeframes. While some delays may be unavoidable, others may arise from poor planning or even deliberate stalling by a developer. Regardless of the cause, what matters most is how the contract deals with delays and what remedies are available to the buyer.
https://qclaw.com.au/when-developers-breach-contract-timelines-what-buyers-can-do/