In built-up areas, the numbering is typically sequential. In rural areas, houses are numbered based on distance from the start of the road.
Our road in the _campagne_ has two houses: number 50 (50m from the start of the road) and number 70 (at 70m).
> Distance is not used to rank each property.
Here's a counter-example: https://www.google.com/maps/dir/43.5909519,7.1060244/43.5939...
Distance is not used to rank each property.