Chris, I have 1/2 acre vineyard facing north-east in Moraga. We used a bit non-traditional 5-by-7 grid (instead of the more traditional 3-by-4) for our Cabernet vines. Please come take a look if you are interested. Just ping on my mobile at 408-431-3305
The zoning depends on where in Moraga you are. There is along history of town of Moraga trying to restrict residential vineyards…
Wine Spectator News