The RFL has granted London Broncos permission to the play at the Ealing Trailfinders Sports Ground in 2019.
The Broncos achieved promotion to Super League with victory in the Million Pound Game.
In a statement, the RFL said: “London Broncos’ ground does not currently meet the Super League minimum standards relating to seating capacity.
“Accordingly, in accordance with the RFL Operational Rules, the club sought dispensation to be eligible for promotion to the Super League.
“On the basis of the submissions made and supporting documentation provided by the Club, the RFL Board determined that the Club should be granted a dispensation.
“The dispensation is on the basis that the club will increase the seating at its ground to more than the minimum capacity required in advance of the start of the season.”