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INVESTOR OPPORTUNITY | 4-PARCEL DEVELOPMENT SITE | 1031 EXCHANGE CANDIDATE. 1253 & 1255 Agate Ave, Mentone CA 92359. Rare income-producing development opportunity in Mentone's supply-constrained submarket. Two fully remodeled SFRs currently leased at $2,750/mo (3bd/2ba) and $2,300/mo (2bd/1ba) — immediate cash flow of $5,050/mo from day one. Site totals 55,044 SF (1.26 acres) including private access corridor. Conceptual plan supports 4 parcels averaging ~11,676 SF each, SFR + ADU per parcel — 8 income-producing units at stabilization. Given site size and depth, a buyer with appropriate development expertise may have the opportunity to achieve 5 or 6 lots. Buyer to verify all development possibilities with San Bernardino County Land Use Services. Projected stabilized gross income: $228,600/yr. NOI: $152,019/yr. Cap rate: 5.38%. New SFRs projected at $3,000/mo each. ADUs projected at $2,000/mo each. Stabilized total: $19,050/mo across all 8 units. All figures illustrative — buyer to verify independently. Zoning: RS | San Bernardino County (unincorporated). 132 ft × 417 ft total. 112 ft × 417 ft buildable. Private access corridor included in sale. May qualify as like-kind replacement property under IRC Section 1031. Consult qualified intermediary and tax advisor. Seller makes no representations regarding tax treatment. Sold as-is. Buyer to verify all zoning and development standards with San Bernardino County prior to close. Conceptual site plan available upon request. Shown by appointment only.
Listing agent: JERRY AVILA DRE #01354211 jerryavila@allnationsontario.com, Listing office: ALL NATIONS REALTY & INVS
MLS data updated 10/16/2026, 8:50:53 PM PT
Source: CRMLS, MLS #: IV26139697
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Sep 23, 2026
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This home · nearest recorded event
$1,200,000Asking price recorded · Sep 23, 2026ZIP 92359 · Sep 2026
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No weekly rateNo published rate within 7 days of this date.No recorded sales in this range. Select All available for older records; missing records do not mean the home never sold.
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