The 82,000-seat stadium currently has permission to hold three major non-sporting events each year, which must not be held on consecutive days, and their capacity is capped at 55,000.
The RFU’s revised plans include new limits on crowd sizes for the proposed concerts – with a cap of 75,000 at weekends and a lower limit on weekdays.
If the plans are approved, the number and scale of concerts held at the stadium would be increased in phases if local officials are satisfied the events are being well-managed.
The RFU said it had agreed with SWR for extra train services to Twickenham on event days, while local residents will get priority access to tickets.
A percentage of the ticket prices will also be put into local community projects.
