T/UNP 777-2025 Active Group standards

T/UNP 777-2025 Specification for preparation of investment estimation in building engineering

Publish Date: 2025-07-22 Implement Date: 2025-07-22 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/UNP 777-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: The comprehensive construction industry

Publish Date: 2025-07-22

Implement Date: 2025-07-22

Scope

This standard stipulates the basic requirements for the preparation of investment estimates for construction projects, project division, quantity calculation, total investment calculation, and document preparation, and is applicable to the preparation of investment estimates for all types of new, expansion, and renovation construction projects. The basic requirements stipulate that the preparation of investment estimates should scientifically and reasonably reflect all costs and clarify the preparation basis; the project division covers multiple categories such as vertical earthwork, civil engineering, and decoration engineering, and clarifies the contents of each project; the quantity calculation stipulates the estimation accuracy at different stages (with allowable errors ranging from ±30% to ±10%) and the depth of calculation requirements; the total investment calculation clarifies that the total investment consists of construction investment, financing costs during the construction period, and working capital, and separately stipulates the composition and calculation methods of each part; the document preparation stipulates the preparation form (level 2 or level 1), content composition (cover page, preparation explanation, etc.), and quality control requirements (establishment of a quality management system, review and approval, etc.)