Umm no map!
I think you will find that Gladesville Bridge wasn't actually built until the mid 1960's. I was just pointing out the area it shows. Victoria Road wasn't named also untill late 1800's early 1900's. Prior to That it was "The Great North Road"
and is shown on the map you presented.
What was lacking was detail on the south Shore Concord area. I believe you will need an ealier version up to say 1850, before any further subdivisions took place and a list of the owners from the original grant. Late 1790's or maybe up to 1805.
If I am correct it was to a free settler or ex garrison soldier 40 acres his wife 20 acres and two children 20acres, 10 each. Which should make up 80 acres.
Lots of these had to be improved to keep the grants and maintained for a number of years and then could be split up, but I dont think this was allowed untill around 1846. So still original land grant until about then.
Neil