Lakanal House was a "high-risk building", Mr Walker said, but no valid fire risk assessment was in place when the fire broke out.
BBC: Lakanal House Fire: 'No fire risk assessment' done of tower
2.
The suspended ceiling was high-risk and needed immediate attention before the fatal fire as it breached safety designs around compartmentation, Mr Walker told the inquest.
BBC: Lakanal House Fire: 'No fire risk assessment' done of tower