Amber is right on with her facts. The answer is no, it is protected property due to the species of habitat (both animal & plant material).
The great part about San Diego versus other Cities in CA is that San Diego has had an active hand in providing and protecting open space in conjunction with home and commercial developers. Each time a community has been built in the past 10+ years, the developer has been required to purchase land separate from their development that is then donated to the City or State and becomes protected property.
Best of luck to you,
Mark & Kari Shea
Shea Real Estate
Serving Greater San Diego
Realtor, Coldwell Banker Real Estate
2651 Via De La Valle
Del Mar, CA 92014