The number of building consents issued in Christchurch are still comparatively low, but are expected to sharply increase in coming quarters.
Combined with the construction sector coming off a low base, the government's intention to kick on with infrastructure projects, especially roading, and the Canterbury recovery, the BNZ economist team predicts impressive growth.
"We expect residential construction activity in 2012 to be about 25 per cent above last year, with 2013 seeing a 31 per cent gain on top of that," said Ebert. "While these might seem like enormously heroic numbers, they would simply restore things to trend."
Earthquake rebuilding is "adding to a nationwide impetus off its recent extreme lows," he said. "Already, residential building consents are about 20 per cent above their early-2011 lows."
One other earthquake related feature is that other cities' buildings are now being found to not be as shake-tolerant or safe as before Christchurch's events. The upgrading of commercial buildings in particular is expected to also add to a resurgent construction industry.
Ebert said the release of insurance payouts spreads money right across the economy in a flow-on effect.
A construction upturn fuels manufacturing, and also feeds into an increase in consumer spending on items such as home appliances and carpets. Other services such as conveyancing and property development also receive a huge boost.
Ebert said that a jump in building could lead to an increase in construction input costs. While the Reserve Bank is expected to retain a low cash rate, and interest rates in general stay low, the potential impact on inflation is something the central banker will have to closely monitor in the coming year he said.