These maps can show a number of things. Take for example the map below. Isn't it beautiful?
|Image Source: Marrickville Library Services|
It also shows that the land was empty and that even if you can't find details about your house number, perhaps your neighbour's house history might shed some light.
If your house is very different from the rest of your neighbourhood then perhaps it was built later on land that had been reserved for a road.
People living in these parts of Addison & Illawarra Road also know to limit their search to dates after 1913.
Compare this other map though.
|Image Source: Trove|
Estate maps often show houses that are not part of the land sale, and the owner's names. This may be an exciting find to someone who owns an older house in the street!
Estate maps can be found on Trove and Marrickville Library has many that you can view at the library (phone for an appointment) or online.