To secure a Building Permit, what document describes the works including occupancy and estimated cost?

The correct choice is the document known as the "Description of works." This document plays a crucial role in obtaining a Building Permit because it provides a comprehensive overview of the specific construction activities planned, including details about the type of occupancy, the scope of the project, and an estimated cost of the works.

When authorities review a permit application, they look for clear and detailed information about the proposed project to assess its compliance with local zoning laws, building codes, and safety regulations. The Description of works offers the necessary context and information for decision-makers to determine whether the project can proceed as proposed.

While other documents like the Project Proposal and Construction Contract contain important information, they typically serve different purposes. A Project Proposal may outline the project's vision and objectives but may not include specific construction details required for a permit. Similarly, a Construction Contract formalizes the agreement between parties but is primarily focused on the legal and financial aspects rather than the specifics of the work itself. A Property Declaration relates more to ownership and legal standing rather than the specifics of construction activities. Therefore, the Description of works is the essential document for securing a Building Permit.