Opponents of the Lansdowne Redevelopment Plan have scored a major court victory.

The Ontario Superior Court decided in favour of the Friends of Lansdowne on three key motions.

The court ruled that the Friends of Lansdowne will get full standing before the court, all evidence will be admissible, and the city must provide all the financial details about its partnership with the Ottawa Sports and Entertainment Group.

The group is taking the city to court because they say the plan should not have been sole-sourced to the sports and entertainment group, and that it is a bad deal for Ottawa residents.