Key features of the index
- Based on a blend of property value and construction cost inflation
- Uses publicly accessible third-party data
- Transparent and replicable
- Can adjust rates upwards or downwards
We use an inflationary index to keep development contributions (for example, Development Cost Levies and Amenity Cost Changes) aligned with the costs to deliver infrastructure and amenities.
Historic annual inflationary index
| Year | Annual inflation |
|---|---|
| 2022 | 8.8% |
| 2023 | 8.3% |
| 2024 | 5.7% |
| 2025 | 3.2% |
| 2026 | 0.9% |