A new information resource for Vancouver real propery

I was lucky enough to attend the Pacific Legal Technology Conference last week and heard about a new information resource from the City of Vancouver. It's called Vanmap and there was talk that the precision of free governmental information will change the responsibility of lawyers in real property transations.

Here's the main page, and here's a screenshot of the listing for the Vancouver Convention Centre:

Vanmap screenshot

I was asked for a few more details, so here they are:

The case that discussed the standard of care for real estate lawyers in surveying is Winrob et ux v. Street and Wollen, 19 D.L.R. (2d) 172, 28 W.W.R. 118. At the scale of the published surveying maps available in the 1950's the lines dividing lots would scale up to 10 feet wide in the real world. The data available on Vanmaps allows users to see maps with property lines at a of detail that translates to a few centimeters.