The A.C. Houens funds diploma for 2015 was awarded to six projects by cultural minister Torhild Widvey and president of the National Architects' Association (NAL), Kim Skaara. The diploma is considered Norway's foremost architectural prize with a rich history dating back to 1904.
The diploma may be awarded to projects that "are outstanding, independent and architecturally comprehensive works." It is also a requirement that the building has been completed more than 3 years ago. The winners receive a bronze plaque to be mounted on the building.