Kiwi Build is planning to deliver 16,000 houses in the next three years over and above the current level of activity and the only way they can get close to that is in honing local building crews' speed by standardising design and installation to drive down cost and complexity. Cost is not just building material but delays and slow-moving, bespoke, one-off design.
We are so customised we need to reinvent the wheel for almost every house built. Most houses require a site measurement for the likes of windows, bathroom and kitchen fit-out.
Standardised design gets rid of this costly bottleneck. You make off the plan and schedule installation with much more certainty. Builders or installers get faster and better at doing the same thing over and over. The process becomes supported by clever software that records the quality, warranties and maintenance over the life cycle of the house.
In New Zealand we already prefabricate the likes of frame and truss, windows, kitchens and bathrooms. The problem is we make a lot of one-offs.
The building trade has a large, established investment in site building that will not change in a hurry to off-site, factory-built, panelised housing.
The answer is a modern redesign of the familiar and durable state house. In 1973 we built 39,611 houses, which was 9000 more than today's maxed-out market. Most were simple one-bathroom, one-kitchen, three- bedroom, standard-design state houses that didn't leak.
Using modern materials and maybe 10 different designs we could easily reach the Kiwi Build targets. Procurement and productivity gains would dramatically lower the cost.
The Chinese can teach us a lot in this domain. We should embrace this move and learn from it. I am sure some large contractors who are losing hundreds of millions using old-school Kiwi methods would love to follow the Chinese move.
The commercial-building competitive landscape is already changing to pre-made kitchen and bathroom pods, which can be of a high quality but mass-produced and installed.
The large-scale Kiwi Build programme gives the local residential building trade the chance to rewire the whole industry to achieve a higher-quality, lower-cost house - but only if we standardise.
• John Beveridge is a director of several building related companies and a former CEO of Placemakers.