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Listed by: Jan Callne (760) 415-8538 DRE #01252000, Martin Quiroz DRE #01346293 | Real Brokerage Technologies (855) 450-0442
$4,100,000
Monthly Est:$20,407
-- Bed
- -- Bath
90acres lot
Old River Rd, Bonsall, CA 92003
$4,100,000
$20,407/moEst:
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Land
Built in -
$-- HOA
90 acres lot
$45,556/acre
Description
DISCREET INSTITUTIONAL OPPORTUNITY | 89.88 CONTIGUOUS ACRES | SINGLE LEGAL LOT Positioned at the strategic intersection of ecological asset preservation and multi-use land holding, this unified 89.88-acre contiguous tract represents one of the final legacy footprints in the Bonsall’s San Luis Rey River corridor. Comprising three parcels legally bound as one single lot, the property’s unique strength lies in its naturally bifurcated biological and topography profiles. THE ECOLOGICAL FOOTPRINT: Approximately 69.26 acres feature pristine, high-density native flora, including Diegan Coastal Sage Scrub and a prominent Southern Willow Scrub riparian corridor intersecting the acreage. This native landscape serves as an exceptional private nature buffer, insulating the topography from future regional fragmentation. Positioned ahead of the upcoming North County Multiple Species Conservation Program (MSCP) framework, this acreage presents significant long-term potential for high-value conservation easements, regional habitat mitigation offsets, or permanent stewardship. THE UTILITY CORE: Approximately 20.26 acres of flatter, low-constraint topography—predominantly classified as non-native grassland, disturbed habitat, and existing agricultural pockets—provide an immediate, friction-free envelope for a grand private compound, secure ingress/egress, or sovereign holding utility without triggering extensive environmental mitigation exposure. This is a data-driven land holding tailored explicitly for the forward-thinking legacy investor, conservation trust, or sovereign entity seeking absolute privacy, environmental equity, and watershed security. Complete biological mapping, Holland Code habitat classifications, and certified parcel surveys are available upon request. The offering price reflects a repositioning of assets from conventional rural or residential land to a strategic land holding aligned with the emerging MSCP-driven demand dynamics.
- Houzeo last checked: 5 minutes ago
- Listing updated: September 30, 2026 at 4:35 am
- Source: California Regional MLS-CA | MLS#: NDP2601635

Property Details
Status
Active
Type
Land
No. of Stories
-
County
City
Neighborhood
--
Year Built
-
HOA Fees
-
Finished Area
- sqft
Lot Size
90 acres lot
Basement Area
- sqft
MLS Name
California Regional MLS
MLS Number
NDP2601635
MLS Status
Active
Days on Market
259
Cumulative Days on Market
117

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Location
Facts & Features
Rooms
Bedrooms & bathrooms
Bedroom: --
Bathroom: --
Utilities & Energy
Utilities
Electricity Available, See Remarks
Other Features
Community Features
Suburban
Lot Features
Corner Lot, Over40units Acre
Price History
| Date | Event | Price |
|---|---|---|
02/19/2026 Source: | Listed for Sale | $4,100,000 +14.21% $0/sqft |
02/19/2026 Source: | Price Decreased | $3,590,000 -12.44% $0/sqft |
02/19/2026 Source: | Price Increased | $4,100,000 +14.21% $0/sqft |
02/18/2026 Source: | Coming Soon | $3,590,000 $0/sqft |
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Based on information from California Regional Multiple Listing Service, Inc. as of Nov 06, 2026, 11:30PM and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.
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