Watercare Infrastructure Growth Charges (ICG)

The Facts

The Infrastructure Growth Charge (ICG) is a fee levied by Watercare Services Limited on new connections and on any property that adds a new dwelling, unit or commercial demand to the network. It is separate from, and additional to, Auckland Council Development Contributions. ICG funds the upgrade of trunk water and wastewater infrastructure required to service growth. The fee is set per Equivalent Household Unit (EHU) and is published on Watercare's website, reviewed annually each July. As of recent rate cards, the residential ICG sits in the NZ$13,000 to NZ$16,000 range per EHU, with year-on-year movement of 10-20 percent not uncommon. ICG must be paid before Watercare will issue a connection approval. In Papakura, Veolia Water (not Watercare) levies the equivalent charge, so the URL and rate card change for that catchment.

A Developer's Take

Watercare's Infrastructure Growth Charge. Charged per new water and wastewater connection. Paid at building consent stage, on top of Auckland Council's development contributions (these are different things, often confused).

Per dwelling, current rate is around $15,000-$30,000 depending on zone and the local network capacity. Updated annually.

The trap: ICG is on top of Auckland Council development contributions. A new dwelling in a high-contribution catchment can be looking at $20k-$30k in Auckland Council contributions plus $20k+ in Watercare ICG. That's $40k-$50k per dwelling of infrastructure levies before you build a single wall.

How to check: Watercare publishes the ICG schedule annually. Easier path is to use the Watercare developer portal which lets you enter the address and proposed work to estimate the ICG.

The other thing: connection charges (separate from ICG). If your site needs a new water main extension or a larger lateral, the connection works themselves are an additional cost on top of the ICG. Get a Watercare quote early in the project.

Five-minute exercise on any feasibility: estimate your Auckland Council contributions, your Watercare ICG, your Vector connection charges. Sum them, divide by your number of units. If the per-unit infrastructure cost is above 5% of your end-sale value, the project is infrastructure-cost-constrained and needs a hard look at site selection or unit count.

These increase July each year, and the increases are publicly notified, so it's important to be tracking this for your budget. Often, racing to get water meters in and ICGs paid for is a milestone within large property developments as an increase can cost many thousands of dollars. In 2024 there was a 14.4% increase in Watercare ICG I was tasked with getting Watercare and our civil engineer unstuck; in order to make cut off, or potentially face a $50,000 increase in Watercare ICG costs. After some phone calling around and probing into the right places, our application was unstuck; and as suspected, it was sitting in a Watercare email inbox unallocated and buried under tens of others. Always follow up your Watercare ICG, it could be costly.

When to use this

Check Watercare ICG at the same time you check council DCs. They are independent fees and both hit your project before Code Compliance Certificate. Many developers learn about ICG late and find their feasibility was tens of thousands light per unit. If you're doing more than two new dwellings on a site, the ICG alone can shift cashflow timing materially. Always model ICG at the current published rate plus a small inflation buffer for any project consenting more than 12 months out. If your site is in Papakura, replace Watercare with Veolia in the same workflow.