821 S Mountain Ave, Ontario, CA 91762 Property Records

San Bernardino County property record for 821 S Mountain Ave, Ontario, CA 91762

Property Summary

Property Type	Condominium
Details	2 bd · 1.5 ba · 1,332 sqft · built 1979
Lot Size	0.095 acres (4,125 sqft)
Owner	2 Individual Names on Record
Last Sale	$385,000 (Jun 2021)
Tax Bill	$4,585 (2025)
Deeds & Mortgages	Jun 2021 Sale & Mortgage Jan 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1011-382-12-0000`

Property Details

APN / Parcel Number

Primary APN	`1011-382-12-0000`

Interior

Bedrooms	2 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	4 Rooms
Stories	2 Stories
Building Area	1,332 sqft Living Area
Gross Area	1,736 sqft
1st Floor Area	610 sqft
2nd Floor Area	722 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1979
Effective Year Built	Effective 1979
Architectural Style	Modern
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	4,125 sqft (0.095 acres)
View / Lot	Average
Garage Type	Attached
Garage Area	404 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	821 S MOUNTAIN AVE
City	ONTARIO
State	CA
Zip	91762-4811
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	TRACT 10200 UNIT 1 AND INT IN COMMON AREA AS PER RECORD AND PURSUANT TO SEC 2188.5 OF REVENUE AND TAXATION CODE
Legal Subdivision	COTTAGE PARK
Legal Tract	10200
Legal Block	3
Jurisdiction	SAN BERNARDINO CA
Township / Civil Division	ONTARIO
Census Block Group	3
Census Block	3000
Census Tract	1706

Owner

Source: San Bernardino County records, as of July 14, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	821 S MOUNTAIN AVE, ONTARIO, CA 91762-4811
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Jun 8, 2021	Grant Deed, Transfer · Conventional Mortgage ALLIANCE WEST MORTGAGE
Jan 4, 2018	Grant Deed, Transfer · Conventional Mortgage ROYAL PACIFIC FUNDING CORP

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 8, 2021 · Amount on Record
Deed Sale	Jun 8, 2021 · Amount on Record
Prior Sale	Jan 4, 2018 · Amount on Record
Deed Document Number	2021260632
Prior Transfer Date	Feb 10, 2005
Prior Transfer Doc	0000115763
Record Updated	Sep 20, 2026

June 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN BERNARDINO CA
Recording Date	Jun 8, 2021
Property Address	821 S MOUNTAIN AVE, ONTARIO, CA 91762-4811
Document Number	0000260632
Map Reference	MB 144 PG 87&88
Instrument Date	May 4, 2021
Instrument	2021-0260632
Transaction Type	Transfer
Record Updated	Jun 22, 2021
Title Company	FIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	821 S MOUNTAIN AVE, ONTARIO, CA 91762-4811
Investor	Possibly a Property Investor

Mortgage

Document Number	0000260633
Date	Jun 8, 2021
Instrument	2021-0260633

Lender

Name	ALLIANCE WEST MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2051

January 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN BERNARDINO CA
Recording Date	Jan 4, 2018
Property Address	821 S MOUNTAIN AVE, ONTARIO, CA 91762-4811
Document Number	0000003286
Map Reference	MB 144 PG 87&88
Instrument Date	Dec 6, 2017
Instrument	2018-0003286
Transaction Type	Transfer
Record Updated	Aug 31, 2021
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Notice of Default Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	821 S MOUNTAIN AVE, ONTARIO, CA 91762-4811

Mortgage

Document Number	0000003287
Date	Jan 4, 2018
Instrument	2018-0003287

Lender

Name	ROYAL PACIFIC FUNDING CORP
Type	Funding / Finance Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jan 1, 2048

Tax Assessment & Valuation

Source: San Bernardino County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	San Bernardino County
Municipality	Ontario City
Secondary School District	Chaffey Joint Union High School District (09 - 12)
Elementary School District	Ontario-Montclair School District (KG - 08)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$425,071 (+2%) Land $148,775 Building $276,296
2025	$4,585.00 (+5.28%) Homeowner's exemption	$416,736 (+4.04%) Land $145,858 Building $270,878
2023	$4,355.00 (+1.35%) Homeowner's exemption	$400,554 Land $140,194 Building $260,360
2022	$4,297.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	ONTARIO MUNICIPAL UTILITIES COMPANY serves 185,010 people · EPA ID CA3610034
Water Source	Purchased surface water from several systems
Last State Inspection	Jul 2025
Lead	Under 1 ppb (2022–2024) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 828 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20

May also be available: Frontier, GeoLinks, T-Mobile.

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