The construction costing proposal provides details for building a 100,000 square foot office tower and production facility. It includes: 1) An outline of the project context, objectives, construction phases, work schedule, and cost estimate. 2) Details of the company, including past projects and team members to undertake the work. 3) A 360-day work schedule and estimated costs totaling $13,800 for the project. 4) Contract, payment, and sign-off details to formalize the agreement if selected for the work.