Understanding BCA TR 78
BCA Technical Reference 78 was developed to standardise drone use in building facade inspections across Singapore. Before TR 78, there was no consistent framework for drone data capture, quality standards, defect classification, or report format.
This created challenges — owners could not compare results between providers, PEs had no benchmark for drone data sufficiency, and BCA had no basis for accepting or rejecting submissions.
TR 78 establishes clear requirements across the entire inspection workflow. For building owners, TR 78 compliance means your drone inspection produces BCA-accepted data that is defensible for regulatory compliance.
Compliance Requirements
Flight Planning
Pre-flight documentation including building assessment, obstacle survey, airspace clearance, flight path design, and emergency procedures.
Image Capture
Minimum GSD specifications ensuring defects are identifiable. Overlap requirements for complete coverage verification.
Operator Qualifications
CAAS UAPL for pilots. Competence in facade defect identification for inspection personnel. Credentials documented.
Report Documentation
Structured format with methodology, defect register, elevation maps, severity classifications, and remediation. PE-compatible.
Our Compliance Framework
Pre-Inspection Check
Building assessment, CAAS permit verification, flight plan review against TR 78, and equipment calibration confirmed.
Controlled Data Capture
Execution per plan with real-time quality monitoring. Resolution, overlap, and coverage verified during flight.
Standardised Analysis
Defect identification per TR 78 taxonomy. Consistent severity grading. Visual-thermal cross-reference.
Quality-Controlled Reporting
TR 78 format, internally reviewed, delivered with compliance statement for PE endorsement.
Common Non-Compliance Issues
| Issue | Risk | Our Approach |
|---|---|---|
| Ad-hoc flight patterns | Coverage gaps — defects missed | Planned systematic paths with verified overlap |
| Insufficient resolution | Small defects undetectable | 5mm/pixel exceeding TR 78 minimums |
| Non-standard classification | Inconsistent reporting | TR 78 taxonomy by trained inspectors |
| Missing methodology | Report cannot be verified | Complete methodology statement in every report |
| No CAAS permits | Illegal — report may be invalid | Activity permit for every inspection |
Verifying Your Provider
- Request TR 78 Compliance Statement — included in proposal and final report.
- Verify CAAS Licensing — ask for UAPL numbers and activity permit copies.
- Review Sample Reports — check for structured classification, elevation mapping, methodology.
- Ask About Resolution — provider should state achieved GSD and verification method.
- Check PE Relationships — experienced providers have established PE endorsement relationships.
Frequently Asked Questions
Singapore Context — Why This Matters
Singapore's built environment presents unique challenges for building inspection. With over 14,000 buildings subject to periodic facade inspection requirements, the scale of compliance activity is significant. The tropical climate — UV index consistently above 10, humidity averaging 80 percent, heavy monsoon rainfall, and constant thermal cycling from air conditioning — accelerates facade deterioration faster than in temperate climates.
The combination of ageing building stock and aggressive environmental conditions means facade defects develop faster and can progress to safety-critical levels more quickly than building owners expect. Tiles that might last 30 years in a temperate European climate may begin delaminating within 15-20 years in Singapore. Sealants rated for 20-year service life may fail in 10-12 years under constant UV bombardment.
This is why Singapore's regulatory framework mandates periodic inspections and why the quality of those inspections matters. A thorough drone inspection that identifies early-stage delamination allows preventive maintenance at a fraction of the cost of emergency repairs after tiles have fallen. Thermal imaging that detects moisture infiltration behind cladding prevents the progressive structural damage that unchecked water ingress causes over years.
For building owners and MCSTs, investing in quality inspection data from CAAS-licensed drone operators is not just about regulatory compliance — it is about protecting asset value, ensuring occupant safety, and managing long-term maintenance costs effectively. The buildings that are well-maintained and well-documented command higher market values and lower insurance premiums than those with incomplete inspection histories.
Getting Started — Next Steps
Whether you are preparing for your first periodic facade inspection or looking to switch from traditional methods to drone technology, the process begins with a simple conversation.
- Contact Us — WhatsApp 9669 3006 or email enquiry@droneinspections.com.sg with your building address and inspection needs.
- Receive a Fixed Quote — we reply within 2 hours with a transparent, all-inclusive price covering permits, inspection, and reporting.
- We Handle Everything — from CAAS permits to PE coordination, we manage the entire process. You receive a BCA-ready report within 3-5 working days.
- Plan Ahead — CAAS permits take 2-4 weeks. Contact us at least 6 weeks before your BCA deadline for smooth compliance.
Get a Free Drone Inspection Quote
Tell us about your building or asset. We reply with a fixed-price quote within 2 hours. No obligation.