This article is about Civil and Structural Scope of Work in Petrochemical Project related to Civil Design and Site Work in Plants and Petrochemical Plants as per International Procedures, Codes & Standards. Here furthermore will be discussed about Codes, Standards, and Specifications for civil work, Specific Requirements for Building HVAC Design, Site Topographical and Geotechnical Survey, Civil Loading Diagram, Building Layouts, Structural Design Criteria and Standard Details, Civil Engineering Calculations, Civil Design Drawings (Plans, Sections, and Details) in Plant and Petrochemical Plants.