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  • Old River Road

Old River Road, Bonsall, CA 92003

$4,100,000 Approx. USD 0 beds, 0 baths
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Photo of Dona Aumann

Dona Aumann REALTOR® - Sales Associate 858-752-7531 m
858-729-1094 o
Lic#: 01898410
NRDS ID: 196550369
daumann@bhhscal.com
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Lic#: 01898410
NRDS ID: 196550369
daumann@bhhscal.com
La Jolla Prospect Office
1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
Phone: 858-459-0501
Fax: 858-459-3275
La Jolla Prospect 1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
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Fax: 858-459-3275
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Listing Agent


Jan Callne | jan@sdinstyle.com
Lic#: 01252000
Broker: Courtesy of Real Brokerage Technologies
Phone: 760-415-8538

Co Listing Agent


Martin Quiroz | Martin@USAHomesAndLoans.com
Lic#: 01346293
Broker: Courtesy of Real Brokerage Technologies
Phone: 619-813-1287

Agent Remarks

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.

Listing Details

Property type: (Lots/Land)
Status: Active
MLS# NDP2601635
Price: $4,100,000
HOA Fee is $0.00
Beds: 0
Baths: 0
90.00 acres
Lot size: 90.0000
County: San Diego
Zoning: R-1:SINGLE FAM-RES Resid
Lot description: Corner Lot,Over 40 Units/Acre
MLS area: 92003 - Bonsall

Last Updated: 6/17/2026

 Days On Market (DOM): 117

 Find more Bonsall homes and real estate

 Find more homes in 92003 zip code

This listing belongs to the 92003 - Bonsall MLS area

Lat/Long: 33.283800, -117.203200.
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DISCLAIMER: There is NO WARRANTY, expressed or implied, for the accuracy of this information or its applicability to your financial situation. Please consult your financial and/or tax advisor. GET PRE-APPROVED The loan's interest rate will depend upon the specific characteristics of the loan transaction and credit profile up to the time of closing.

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Photo of Dona Aumann

Dona Aumann REALTOR® - Sales Associate 858-752-7531 m
858-729-1094 o
Lic#: 01898410
NRDS ID: 196550369
daumann@bhhscal.com
Text Me
Call My Cell
Call My Office
Lic#: 01898410
NRDS ID: 196550369
daumann@bhhscal.com

La Jolla Prospect Office
1299 Prospect St, Ste. 100-101, 200-203 & 301-302
La Jolla, CA 92037
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