What if Point Reyes was a fully developed with housing? Well, in the 1950s, things were heading that way. If you want to know how the area got saved, I recommend this book on the history of Point Reyes and the Bay Area parks. Fortunately for us, the National Park service is continuing its mission of restoring the area to its natural state.
Take a look at this photo of Limantour in 1961. This was to be a housing development. Fill the land with tract homes and watch it spread across the peninsula. We have a lot of people to thank for saving this place.
Photo from NPS Archive via Pacific Coast Science and Learning Center