Why the difference between the number of building consents and the actual increase in the housing stock? There are three reasons.

As our population increases, building enough houses is an ongoing challenge. One common measure of that building pace is the number of building consents issued. I have a better way.
In our database, I can count the total number of houses, flats and apartments at any point in time for any region, city, town or suburb.
Read more in the original article: NZ Herald – New-build reality check