Helensville Golf Club
Auckland · 22 greens mapped
Read these greens →
The greens here
22 greens at Helensville have been mapped from the national LiDAR survey — 7,124 m² of putting surface altogether, with a median green of 326 m². The national median is 397 m², so these run 18% smaller than average.
- Steepest green: hole 6, averaging 4.3% and falling north-west.
- Flattest green: hole 16, at 0.2%.
- Most internal fall: hole 18, 1.21 m between its low and high point.
- Largest green: hole 8, 475 m².
Every green
| Green | Size | Fall | Avg grade | Runs off to the |
|---|---|---|---|---|
| Hole 1 | 466 m² | 0.32 m | 0.7% | north |
| Hole 2 | 417 m² | 0.86 m | 3.0% | north-east |
| Hole 3 | 273 m² | 0.78 m | 3.2% | north-east |
| Hole 4 | 312 m² | 0.49 m | 1.6% | west |
| Hole 5 | 323 m² | 0.33 m | 1.5% | north-east |
| Hole 6 | 331 m² | 1.01 m | 4.3% | north-west |
| Hole 7 | 392 m² | 0.91 m | 3.2% | north-east |
| Hole 8 | 475 m² | 0.73 m | 1.8% | south-east |
| Hole 9 | 224 m² | 0.44 m | 1.6% | east |
| Hole 10 | 248 m² | 0.47 m | 1.6% | north |
| Hole 11 | 328 m² | 0.28 m | 0.8% | north-west |
| Hole 12 | 296 m² | 0.58 m | 2.7% | north-east |
| Hole 13 | 438 m² | 0.60 m | 2.0% | west |
| Hole 14 | 371 m² | 0.40 m | 1.4% | north-east |
| Hole 15 | 359 m² | 0.50 m | 1.7% | north-west |
| Hole 16 | 319 m² | 0.17 m | 0.2% | north-west |
| Hole 17 | 346 m² | 0.56 m | 1.1% | south-west |
| Hole 18 | 328 m² | 1.21 m | 3.5% | north |
| Green A | 185 m² | 0.16 m | 1.0% | south-west |
| Green B | 311 m² | 0.56 m | 3.0% | north-west |
| Green C | 97 m² | 0.29 m | 1.5% | north-east |
| Green D | 286 m² | 0.58 m | 1.5% | north-east |
“Fall” is the height difference between the lowest and highest point of the putting surface. “Avg grade” is the best-fit plane across it — a green can average 2% and still have a shelf on it, which is what the app shows and a table cannot.
Where these numbers come from
Heights come from Land Information New Zealand’s 1 m LiDAR elevation survey (Auckland Part 1, 2024), published openly under CC BY 4.0. Green outlines and hole numbers come from OpenStreetMap under the Open Database Licence. Slope uncertainty on this course works out at ±0.15%.
Slope is measured. Break is modelled — the read in the app is a physics simulation of a ball rolling over the measured surface, and it knows nothing about grain or moisture. The survey predates any green rebuilt since 2024. More about how this is made.