1 Mullum Drive, Donvale | Land size: | 3,893 sqm | Backyard: | north facing | Slope: | Moderately Inclined | |
| Elevation Data | Front [A] | Center | Back [B] | 66.56m | 72.99m | 80.97m |
| The back of the land is 14.41m higher than the front. Degree of slope is 16 percent. (Average building cost of $6,000 for every 1 metre of fall) | | Left [C] | Center | Right [D] | 74.38m | 72.99m | 71.35m |
| The left of the land is 3.03m higher than the right. Degree of slope is 7 percent. (Average building cost of $9,000 for every 1 metre of sideway fall) |
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