A late flurry has seen 62 parties formally express interest in making submissions to the Royal Commission of Inquiry into why so many buildings were destroyed by the Canterbury earthquakes.
The deadline for expressions of interest was last Friday and less than a week ago just 11 parties had put their names forward.
Commission executive director Justine Gilliland said the final level of interest was pleasing.
Civil Defence, the Historic Places Trust, the Fire Service, engineering firms, the Structural Engineering Society and Wellington City Council are among those registering interest but the Christchurch City Council was expected to decide at a meeting later this week if it would take part in the process.
The council, which is already providing information to the inquiry, had contacted the commission to ensure it could make a late expression of interest, as had a number of others, who said their forms were in the post.