If you are going to buy there, why do you care about when the road Camino Del Sur was built ? You should think about the future . Camino Del Sur road is one way in and out , my friend lives there and complain about the traffic jam during peak hours.

If you drive there , you will see part of Camino Del Sur road is expanding one more lane now, because more people move in Del Sur and there is lot of land and new houses there. And it is the way going to west around that area instead of jamming in highway56.