Document the defects comprehensively
Take clear, dated photographs from multiple angles showing the full extent of each defect, including close-up shots of cracking, water damage, structural defects, or non-compliant construction details that demonstrate breach of building standards. Write detailed descriptions noting locations, measurements, and how the defects impact your use of the property. Gather all relevant documents including your building contract, construction plans, specifications, progress payment schedules, correspondence with the contractor, and any previous inspection reports. Maintain a chronological record of when you first noticed each defect and how they have progressed.