A building site manager may perform the following tasks:

• provide skilled assistance to builders in planning and organising building projects by interpreting and carrying out their directions
• interpret building plans, regulations and codes of practice in order to direct the progress of work, and monitor compliance with construction documents
• calculate costs and estimate completion times to prepare tender bids and to deal with contract variations
• arrange supplies of material and equipment
• draw up detailed programs for site works and the coordination of building workers, and record variations from design drawings or specifications
• negotiate with subcontractors and make reports to builders and architects.