The ‘Villages of La Costa’ was the name given to the development of four large areas of south Carlsbad. La Costa Valley (bottom left) was graded and model homes being built when this photo was taken. La Costa Oaks South is the green patch to the right, La Costa Ridge in the middle, and La Costa Greens in the upper left, next to where Bressi Ranch and Rancho Carrillo were being graded in this photo.
Here’s a good summary of what Fred had to endure to get the Villages built:
https://www.builderonline.com/land/planning/worth-the-wait_o