Addington School Hall, Christchurch.
Regular Saturday dances are held here the first Saturday of the month. The venue is a light and colorful hall located off Simeon Street. Here is a Google Earth link and aerial photo.
Heading west on Brougham St turn left onto Simeon St and fairly shortly just past the houses before the park take the drive on your left to the school car park. Note due to road reorganization, you can't turn onto Simeon St if you are heading east on Brougham.