The getting the good value part is tough. What you described is available in Scripps but not sure if you would consider it good value. There are some areas of Tierra Santa and even San Carlos that have larger lots as well. I also think there are some areas in Poway that would fit the bill. Finally if you go a bit farther up Pomerado on the east side of it, before it bends back towards 15 in Rancho Bernardo there are some places as well. Also tucked in between Lake Hodges and south Escondido on the west side of I15 there are possibilities. I like that part of UC you are looking at. You could even consider Clairemont as well if you are patient enough to wait until something with a big lot comes up.