"Starting with rehousing the victims, and making sure they don't leave the W11 post code. And remain on the emergency housing list.
"Monday I will be around @RugbyPortobello putting this plan into action. From 10:30am until progress has been made."
Mr Cundy said on Saturday that of the 58 people, 30 were confirmed dead while16 bodies had been recovered from the 120-flat Tower and taken to a mortuary.
Bertrand, who won his 14th England cap in Tuesday's 3-2 defeat, signed a new five-year contract with Southampton last summer after joining from Chelsea in a £10million deal in 2015 after an initial loan spell.
Reports on Tuesday suggested the Premier League club will move for the Southampton man instead of the Monaco defender, but both are targets