Plus you lose time to Weather, Working Habits of employees (or lack of them), Sick and Annual Leave, and you lose money to Kiwisaver employer contribs, ACC, GST and provisional tax. See the attraction of the sole trader?
Whereas a Factory build has to be the way forward for all of this. Site requirements come down to a foundation and landscaping, erection consists of a crane hire and a few bolt-togetherers, each for 2-3 days if it's a halfway decent design. Check 'Grand Designs' for some clues if unsure. Or (gasp) the Irish
There is just no way the current paradigms can continue, and deliver the volumes and build quality needed.
Yes, expectations need to come down to achieve 'affordability':
- Smaller spaces - nothing over say 140 squares
- Hip or gable roofs with actual eaves to ensure weathertightness
- Modular designs with maximal involvement from yacht and caravan designers to ensure space is used intelligently
- Zero involvement with architects to ensure weathertightness and intelligent use of space
- Multi-proof consented ex factory to ensure the stupid TLA's cannot introduce mucho time and therefore $ into the construction sequence
About the only two things Gubmint can do to speed this along is to grease the skids for the aforesaid factories and perhaps backstop the multi-proofing; and snooker the land-banker by doing a FIF-like tax on land value (deemed value is the key) plus maybe a coupla massive compulsory acquisitions at rural land cost, sold on at purchase price.
Kill the chicken, but make the monkey watch....