3020 Joni

San Marcos, CA 92069

Now available, an exceptional opportunity to own a premier mountaintop estate in the hills of San Marcos, spanning over 31 acres with breathtaking ocean views and panoramic vistas from the inland valleys to the Pacific. Comprised of a 28.72-acre parcel and an additional 3-acre lot, this expansive property is zoned A70 with the highly desirable L animal designator, offering flexibility for agricultural, residential, or estate development. Perched at approximately 1,175 feet in elevation, the land delivers unobstructed 360-degree views, remarkable privacy, and a setting that feels worlds away while still being within reach of town. With county guidelines allowing for 4-acre minimum lot splits, the property presents the potential to create up to seven custom homes, ideal for developers, multigenerational living, a private compound, or those looking to secure a long-term investment in one of San Marcos most sought-after growth areas. Significant infrastructure is already in place, with over $1 million invested, including a producing private well with booster pump, two water meters, two electric meters, recently paved access roads, multiple access points, and several flat, view-oriented building padsdramatically reducing the time and cost to bring your vision to life. Surrounded by custom estates, boutique agricultural properties, and peaceful rural landscapes, this is a rare offering with the scale, views, and groundwork already completed, ready for a legacy estate, luxury development, or private retreat.

Listed by Corey Murphy of Pabalyn Properties (858) 361-2593



This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS®. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Copyright © 2026 San Diego MLS®.

Last checked 2026