"Property numbers are worked out based on the distance from the start of the road to the entrance of the property. That distance (in metres) is divided by ten.
Even numbers are on the right and odd numbers are on the left. For example, the entrance to a property 5,080 metres from the start of the road on the right hand side becomes number 508."
The start of the road is determined as the fastest and safest road accessed from the nearest major road or town.
These rules are not confined to Victoria. This quote is from South Aus.
The road which passes YKTN, ( a couple of Ks from town), is measured from Metcalf, (15 ks away), and a much smaller town than Kyneton.