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Property profile & analytics
OFF-MARKET
Estimated value
$565,000
Investment properties
309 California St Ontario, CA 91761-2514
Entity Owned
2-yr Hold
Property ID
US10-1553447
Property profile
Verified
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Year built
1924
Construction
FRAME
Total area
1,065 SF
Lot
0.17 ac (7,200 SF)
APN
1049-256-09-0000
UPID
US10-1553447
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$655k
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$739k
Blend (final)
Blend
$565k
Owner & transaction history
G Real Estate Holdings LLC · 2 yrs held
G Real Estate Holdings LLC
since 2023
Last sale
$579,000
7 recorded transactions
Zoning & alternative use
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Ontario submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Ontario submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
$550,000
ML approach
$655,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$470,000
Current use
OFFICE BUILDING
$465,000
Change: -1% · Conversion: Easy
Blend value · Realmo final
$565k
Range $509k – $622k · ±10% · vs last sale $579k (Dec 12 2023)
Last sale anchor
$579k
Dec 12 2023
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$531 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2023Property tax & assessments
Tax year 2023
Tax billed
$6,286
Tax year 2023
Assessed value
$580,000
Assessed 2024
Previous assessed
$579,000
+0.2% YoY
Effective rate
1.08%
On assessed value
Assessed land
$200,000
Assessed improvement
$380,000
Applied tax rate
4.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Investment properties
Use group
OFFICE/RESIDENTIAL (MIXED USE)
Status
Off-Market
Year built
1924
Construction
FRAME
Heating
FLOOR/WALL FURNACE
Cooling
NONE
Stories
1
Rooms
7
Bathrooms
1
Total area
1,065 SF
Lot
0.17 ac (7,200 SF)
APN
1049-256-09-0000
UPID
US10-1553447
Jurisdiction
SAN BERNARDINO
Zoning & alternative use
Zoning · permitted uses
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$470,000
OFFICE BUILDING
Est. value
$465,000
COMMERCIAL (GENERAL) Current
OFFICE BUILDING
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1924
Construction
FRAME
Heating
FLOOR/WALL FURNACE
Cooling
Yes
Stories
1
Rooms
7
Bathrooms
1
Lot
0.17 ac
Current owner
From public records · entity-resolved
G Real Estate Holdings LLC
Entity
Mailing address
6649 AMETHYST AVE UNIT #9041, RANCHO CUCAMONGA, CA 91701-1546
Ownership since
2023
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
14 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Dec 12, 2023
—
G Real Estate Holdings LLC
Jillian Austin
Quit Claim Deed
related
—
Jul 28, 2022
$579,000
Jillian Austin
Callie W Smith
Grant Deed
$463,200 · Van Dyk Mortgage Corp
Jul 28, 2022
—
Jillian Austin
Christopher Adam Griffith
Intrafamily Transfer
related
—
Jun 3, 2020
—
Callie W Smith
—
Deed
related
$321,000 · Quicken Lns
May 31, 2019
—
Callie W Smith
Gabriel F Smith
Intrafamily Transfer
related
$315,679 · United Wholesale Mortgage
Dec 12, 2017
—
Gabriel F Smith
—
Deed
related
$304,114 · The Federal Savings Bank
Mar 31, 2017
$310,000
Gabriel F Smith
Renovation Equity Group LLC
Grant Deed
$304,385 · Weslend Financial Corp
Aug 12, 2015
$220,000
Renovation Equity Group LLC
Ramirez Raymondo H Trust
Grant Deed
—
Jan 27, 2014
—
Ramirez,raymondo H Trust
Ramirez,raymondo H
Quit Claim Deed
related
—
May 21, 2008
—
David Ramirez
Arizaga,betty J
Affidavit Of Death
—
Nov 21, 2007
—
Raymondo H Ramirez
Ramirez,david A
Affidavit Of Death
$150,000 · The Acuity Group
—
—
Raymundo Ramirez
—
Deed Of Trust
related
$106,000 · Cal Ontario Trust
—
—
Raymondo H Ramirez
—
Deed Of Trust
related
$50,000 · Darby Grp
—
—
Callie W Smith
—
Deed Of Trust
related
$321,000 · Quicken Lns
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
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