Form 15 Certification

Form 15 is a critical document in Queensland’s building certification framework, requiring a professional engineer to certify that building work complies with relevant performance requirements. For existing structures, particularly heritage buildings and aged assets, obtaining this certification requires specialized expertise in assessing actual structural capacity rather than applying prescriptive new-build standards.

TRSC’s Form 15 Certification Process:

• Comprehensive structural investigation to document existing conditions
• Analysis of actual structural capacity based on as-built configuration
• Assessment of compliance with relevant performance requirements
• Documentation of any limitations or conditions on certification
• Coordination with certifiers and regulatory authorities
• Professional indemnity backed by thorough technical work

Our approach to Form 15 certification recognizes that existing structures often don’t conform to current prescriptive standards while still providing adequate structural performance. TRSC specializes in demonstrating compliance through performance-based assessments that account for the actual behavior of aged materials and modified structural systems.

For buildings seeking change of use, Form 15 certification may require demonstrating capacity for new loading conditions or occupancy types. TRSC evaluates these requirements in the context of existing structural capacity, identifying where upgrades are genuinely necessary versus where existing construction already provides adequate performance.

TRSC’s experience with heritage buildings and complex existing structures means we understand the nuances of applying modern codes to aged assets. We work collaboratively with building certifiers to achieve compliant outcomes while avoiding unnecessary interventions that would compromise heritage values or increase costs without commensurate safety benefits.