What is the Detailed Engineering Approach?
The detailed engineering approach from actual cost records, or “detailed cost approach,” uses costs from contemporaneous construction and accounting records. In general, it is the most methodical and accurate approach, relying on solid documentation and minimal estimation. Construction-based documentation, such as blueprints, specifications, contracts, job reports, change orders, payment requests, and invoices, are used to determine unit costs. The use of actual cost records contributes to the overall accuracy of cost allocations, although issues may still arise as to the classification of specific assets. This approach is generally applied only to new construction.
