A housing decision, tested over ten years
Status: Illustrative scenario · Last reviewed: 29 September 2026
This scenario shows how a government focused on shared goals, public costs, and long-term accountability might approach a housing decision. It tests our governance ideas through an everyday issue.
A home needs more than a consent: people also need working water systems, transport, schools, and places they can afford to live. In the year to June 2024, average annual housing costs had risen 31% since 2020, while average household disposable income had risen 24%, according to Stats NZ's 2025 housing report. Those national averages hide different experiences for renters, owners, and regions. We would start with local evidence rather than assume every place needs the same answer.
The idea in brief
| Question | Our draft answer |
|---|---|
| Problem | Homes and the services they rely on can be planned and funded on different timelines. People cannot easily see when a housing promise will turn into a home they can use. |
| Decision to test | Imagine a ten-year local housing and infrastructure agreement. The council and central government would work with mana whenua, infrastructure providers, and affected residents on a published delivery plan that survives an election unless a better, openly costed plan replaces it. |
| Cost and funding | No pilot location, design, or credible total cost has been chosen. A local business case must compare funding routes and show annual bills and long-term obligations before a commitment is made. |
| Who may benefit | People seeking a secure, healthy home; communities that gain useful services; and future residents if the networks last. None of these benefits is guaranteed by an agreement alone. |
| Who bears a cost or risk | Existing ratepayers, new property owners, renters, taxpayers, or future households could bear costs through different funding choices. Neighbours may face construction disruption or environmental effects. |
| Evidence and alternatives | Use local housing need, affordability, network capacity, and hazard evidence. Compare an agreement with separate council and government projects, a smaller build, and doing nothing new. |
| What could change our minds | Revise or stop a project if independently checked costs rise beyond its published limits, homes are not completed, affordability does not improve for the intended people, or environmental and flood risks cannot be managed. |
Make a local agreement people can inspect
In this scenario, choose a pilot area only after publishing why its housing need and infrastructure constraints make it suitable. The government's Local Housing Statistics Dashboard can help set an initial local baseline; it does not replace on-the-ground knowledge. Renters, homeowners, builders, community groups, councils, mana whenua, and the relevant water and transport providers should be involved before the preferred option is fixed.
The agreement would name the homes proposed, including size and tenure; the water and transport capacity required; climate and flood risks; construction stages; responsible organisations; and what must be funded now and maintained later. Publish the options rejected, the reasons, and the effects on nearby communities. Cross-party scrutiny should help a sound project continue across elections, while a material change of course would trigger a public comparison of lifetime costs and benefits.
What to check at each waypoint
| When | What should be visible | A question the public can ask |
|---|---|---|
| Year 1 | A selected area, published local baseline, alternative designs, delivery partners, cost range, funding options, and public feedback. | Is there a feasible plan, and who would pay under each option? No rent saving should be promised yet. |
| Year 5 | The number and type of completed homes, working network capacity, actual spending, delays, and local affordability compared with the baseline. | Are usable homes arriving, and are the bills and benefits falling where the plan said they would? |
| Year 10 | Housing quality and affordability, travel and water outcomes, remaining debt and maintenance needs, and an independent review. | Was this a good long-term decision for current and future residents? |
An annual public progress report would record these measures and explain changes. A consent or funding announcement is progress, but neither is a completed home.
What it might mean for a household
| Household | Possible gain | Cost or uncertainty to show |
|---|---|---|
| A renter | More suitable homes and better access to services could widen their choices. | Extra supply may take years. A levy or rate increase could affect rent, but the size of any pass-through cannot be assumed. Track actual rents and housing quality, not just housebuilding. |
| A young worker | A home nearer work and reliable transport could lower the combined cost of housing and travel. | A new home may still be unaffordable. Report entry-level prices, rents, and travel costs against local incomes. |
| An existing homeowner or ratepayer | Better networks and a clear plan may reduce uncertainty. | Rates, construction disruption, or a long-running property levy may be part of the chosen funding model. Show the expected yearly charge before asking for support. |
Funding has a long tail
A business case for a real project should compare upfront Crown funding, council borrowing and rates, development contributions, and an infrastructure levy where lawful and suitable. Each option shifts costs between people and years. The comparison should include construction, finance, operation, maintenance, overruns, and a plain household-bill illustration. This scenario has no chosen location or cost estimate.
A real example shows why the detail matters. At Te Awa Lakes near Hamilton, an approved levy lets a financing vehicle raise $50 million towards water and road infrastructure. It is designed to apply to about 1,500 properties in the first phase for 30 years from July 2027. The legal maximum cumulative levy revenue is about $143.4 million plus GST over that period; it covers financing, repayment, administration, and other eligible costs, and is not a second construction-cost estimate to add to the $50 million. Actual charges vary by property. These figures illustrate the disclosure a government should provide before committing public money.
The point of a ten-year agreement is to make the destination, milestones, and costs visible enough to improve the plan together. If the evidence shows a different way to deliver secure homes with lower public cost or risk, we should take it and explain why.