Have you tried Bing Maps as well?
Try entering Driving directions from a nearby road to (choose a random) house number on 3rd Avenue. Then repeat but for a different house number - say, 5, 3rd Ave and then 197, 3rd Ave and see if it takes you to different houses.
I just did 10, Langford Road, to 197, 3rd Ave on both google maps and Bing Maps.
Bing was the most accurate. (Google seems to think 10, Langford Road is on a major Highway...)