Who has the final authority to approve contracts, design documents, payments, and other key elements in a construction project?

The owner has the final authority to approve contracts, design documents, payments, and other key elements in a construction project because they hold the ultimate financial and decision-making power regarding the project. The owner is the party that initiates the project and is responsible for funding it, thereby retaining control over contractual obligations and changes that occur throughout the construction process.

In essence, the owner must ensure that all aspects of the project align with their vision, budget, and requirements, making their approval crucial at various stages. While the project manager, designer, and contractor all play significant roles in the execution and management of the project, it is the owner who provides the final sign-off on major deliverables, ensuring that the interests and expectations of the investment are met before proceeding.