Late 40s, so let's say fairly 47 or so. Which means you purchased around 43.
The housing market is broken (and not just in NZ; I'm a Kiwi living in London). In the 90s the outside London average first time buyer age was 29, now it's 33.4 and steadily increasing.
But the real kicker is; how did you get your deposit? Scrimping and saving? Never have house prices been such a high multiple of the average salary. The difference now between the haves and have nots are those whose parents can drop a 30-50kgbp deposit for each of their children and those children who inherit a stake in properties worth around 300-1000kgbp from deceased grandparents.
All of the "news" around properties is through the eyes of home owners and not prospective buyers. There are more people cheering when prices go up and booing when prices go down than vice versa, even when their house is worth many times more than the original price adjusted for inflation.
I had a Kiwi mate stay with me for a holiday recently (also late 40s) and in his mind the high house prices/ridiculous value increase made sense to him because "I pay my rates the whole time I own the house therefore the value should go up". I tried to explain that rates (known as council tax in the UK) were a _service_ just like paying your electricity bill but it just did not compute; he wasn't interested.