Deferred Service Contributions: How Developers Fund Three Waters and When Councils Accept It

Development contributions are one of the largest single cost items on a subdivision project, and they are due before titles issue. For a 20-lot residential subdivision, the development contribution bill can exceed $500,000. That is a significant cash flow problem for developers who have already funded resource consent, engineering design, earthworks, and infrastructure construction. Deferred payment arrangements exist, but they are not automatic and they are not available from every council.

This post explains how development contributions and financial contributions work in the NZ subdivision context, what sections 198 to 207 of the Local Government Act 2002 (LGA) actually require, and when councils will accept deferred payment or alternative arrangements.

Development Contributions vs Financial Contributions

These are two different mechanisms, governed by different legislation, and they do not apply simultaneously for the same purpose.

Development contributions are levied under Part 8, Subpart 5 of the LGA (sections 197AA to 211). They are set out in the council's Development Contributions Policy (DCP), which forms part of the Long-Term Plan. Development contributions are calculated per lot or per household unit equivalent (HUE) and are assessed at the time of resource consent or building consent. They fund the council's capital expenditure on network infrastructure - water supply, wastewater, stormwater, transport, reserves, and community facilities - that is needed to service growth.

Financial contributions are levied under the Resource Management Act 1991 (RMA), specifically section 108(2)(a) and the relevant district plan rules. Financial contributions are imposed as conditions of resource consent and are used to offset the effects of the development. They may be a cash payment, a land contribution, or a combination. Since the RMA reforms, financial contributions have been phased out for most purposes, but some councils still have operative district plan provisions that allow them.

The critical difference for developers: development contributions are calculated using a published formula in the DCP and can be objected to under section 199A. Financial contributions are set as consent conditions and can be challenged through the consent process (including appeal to the Environment Court). Both are typically required before the section 224c certificate issues.

What the LGA Requires: Sections 198 to 207

The relevant LGA provisions for development contributions on subdivision are:

Section 198: Power to require development contributions. A territorial authority may require a development contribution from a developer if a development generates a demand for network infrastructure or reserves. The contribution must be consistent with the DCP in the council's Long-Term Plan.

Section 199: Basis for requiring development contributions. The council must satisfy itself that the development will create additional demand for infrastructure. The contribution must be proportionate to the demand generated. A one-lot-to-two-lot subdivision generates one additional lot of demand. A 20-lot subdivision on a previously un-subdivided parent title generates 19 additional lots of demand (20 new lots minus 1 existing credit).

Section 199A: Right to object. A developer may object to a development contribution assessment on the grounds that it was incorrectly calculated, that the DCP was not properly adopted, or that the development does not generate the demand attributed to it. The objection is heard by development contributions commissioners appointed by the council.

Section 200: Limitations on development contributions. A council must not require a development contribution for a reserve if the developer is providing the reserve land as part of the subdivision. Similarly, if the developer is constructing infrastructure that will vest in the council (for example, a new stormwater main that serves the subdivision and provides capacity for future upstream development), the council must credit the value of that work against the development contribution.

Sections 203 to 207: Refund and reassessment provisions. If a resource consent lapses, is surrendered, or the development does not proceed, the council must refund the development contribution (less any costs incurred). If the development changes materially, the contribution may be reassessed.

How Much Are Development Contributions?

Development contribution rates vary significantly between councils and are updated annually or as part of each Long-Term Plan cycle. Here are indicative rates for the main regions SAE works in:

Napier City Council: Approximately $18,000 to $25,000 per additional lot for a standard residential subdivision, comprising water supply, wastewater, stormwater, transport, and reserves components. The exact figure depends on the development area and the specific infrastructure catchment.

Auckland Council: Approximately $25,000 to $45,000 per additional HUE, depending on the funding area. Auckland has multiple funding areas with different contribution rates reflecting the different infrastructure investment programmes in each area. Some growth areas (such as the Special Housing Areas) have higher contributions reflecting the significant new infrastructure required.

Hamilton City Council: Approximately $30,000 to $40,000 per additional HUE. Hamilton's contributions include a significant transport component reflecting the city's growth-related roading programme.

Rangitikei District Council: Approximately $5,000 to $10,000 per additional lot. Rural councils generally have lower contribution rates reflecting lower infrastructure costs, but the per-lot figure can still be significant for smaller developments where the margin per lot is tighter.

For a 20-lot residential subdivision in Auckland, the development contribution could be $500,000 to $900,000. This is real money that must be funded before titles issue.

When Is Payment Required?

The standard council position is that development contributions are payable before the section 224c certificate issues. This is the point at which all consent conditions must be satisfied and the council certifies that the subdivision is complete. No section 224c means no new titles, which means no settlement on lot sales.

The payment timing creates a cash flow pinch. The developer has already spent money on consent, design, and construction. The lots are built and ready for settlement, but the development contribution must be paid before the titles can issue. The developer needs the settlement proceeds to fund the contribution, but cannot settle without the titles.

This is where deferred payment arrangements become important.

Deferred Payment: What Councils Will Accept

Deferred payment of development contributions is not a statutory right. There is no provision in the LGA that requires a council to accept deferred payment. However, most councils have a policy or a practice that allows it in certain circumstances.

Common deferral mechanisms:

• Payment on building consent: Some councils allow the development contribution to be deferred from subdivision consent (section 224c) to building consent stage. The section 224c certificate issues with a consent notice on the title requiring payment of the development contribution before a building consent is granted on the lot. This shifts the payment obligation from the subdivider to the eventual lot purchaser (or at least to the point where the lot is actually being developed).
• Staged payment: For multi-stage subdivisions, the contribution is assessed and paid per stage rather than for the entire development at once. This aligns the payment with the revenue from lot sales in each stage. Most councils accept this approach as standard for staged developments.
• Bond or bank guarantee: The developer provides a bond or bank guarantee for the contribution amount, and the section 224c certificate issues on the strength of the security. The contribution is then paid within a defined period (typically 12 to 24 months). The cost of the bond or guarantee is typically 1% to 3% of the guaranteed amount per annum.
• Infrastructure credit agreements: Under section 200 of the LGA, a developer who constructs infrastructure that will vest in the council and that provides capacity beyond the immediate development can negotiate a credit against the development contribution. For example, if a developer constructs a new stormwater main sized to serve the subdivision and 50 additional lots upstream, the cost of the additional capacity may be credited against the development contribution. These agreements are negotiated case-by-case and require careful documentation of the infrastructure scope, cost, and capacity allocation.

Negotiating with Council

Development contribution negotiations are commercial discussions, but they take place within a statutory framework. The council cannot simply agree to waive or reduce a contribution that is properly assessed under the DCP. However, there are legitimate avenues for reducing the assessed amount:

• Existing-use credits: If the site has an existing use that already generates demand for infrastructure (for example, a commercial building on a site being subdivided for residential use), the development contribution should be assessed on the net additional demand, not the gross demand. Some councils are conservative in applying existing-use credits, and this is a common area of objection.
• Infrastructure credits: As noted above, the value of infrastructure constructed by the developer that will vest in the council and provide capacity for other developments should be credited against the contribution.
• Objection under section 199A: If the assessed contribution does not reflect the actual demand generated by the development, or if the DCP methodology produces an unreasonable result, the developer can lodge a formal objection. The objection is heard by independent commissioners, and the decision is binding on the council.
• Negotiated infrastructure agreements: For large developments, councils may enter into infrastructure agreements under section 207D of the LGA. These agreements set out the infrastructure the developer will construct, the development contributions payable, any credits or offsets, and the timing of payments and vesting. These agreements provide certainty for both parties and are particularly valuable for multi-stage developments that span multiple Long-Term Plan cycles.

The Civil Engineer's Role

The civil engineer is not the development contributions negotiator - that role typically sits with the developer, their planner, or their lawyer. However, the civil engineer provides the technical inputs that underpin the negotiation:

• Quantifying the infrastructure demand generated by the development (number of lots, impervious area, peak water demand, peak wastewater flow, stormwater discharge rate)
• Identifying infrastructure that will vest in the council and that provides capacity beyond the development's own needs
• Preparing the engineering cost estimate for vesting infrastructure to support credit negotiations
• Confirming that the engineering design aligns with the infrastructure assumptions in the DCP

Getting the engineering inputs right is essential. An infrastructure credit negotiation that is not supported by a robust engineering cost estimate and capacity assessment will not succeed. The council's infrastructure team will review the claim against their own cost data, and unsupported or inflated claims damage credibility for the rest of the project.