10870 Boulder Canyon Rd, Rancho Cucamonga, CA 91737 Property Records

San Bernardino County property record for 10870 Boulder Canyon Rd, Rancho Cucamonga, CA 91737

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 2,808 sqft · built 1989
Lot Size	0.482 acres (21,000 sqft)
Owner	2 Individual Names on File
Last Sale	$715,000 (Jun 2013)
Tax Bill	$8,175 (2025)
Deeds & Mortgages	May 2021 Mortgage May 2021 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1074-481-30-0000`

Property Details

APN / Parcel Number

Primary APN	`1074-481-30-0000`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	2,808 sqft Living Area
Gross Area	3,488 sqft
1st Floor Area	2,808 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1989
Effective Year Built	Effective 1989
Architectural Style	Modern
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Tile
Lot Area	21,000 sqft (0.482 acres)
Garage Type	Attached
Garage Area	680 sqft
Parking Spaces	2 Parking Spaces
Porch	Patio/Porch
Porch Area	410 sqft
Patio Area	410 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	10870 BOULDER CANYON RD
City	RANCHO CUCAMONGA
State	CA
Zip	91737-6709
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	VL
Legal Description	TRACT 12650-4 LOT 24
Legal Subdivision	12650-4
Legal Tract	12650-4
Legal Block	1
Legal Lot Number	24
Jurisdiction	SAN BERNARDINO CA
Township / Civil Division	ONTARIO
Census Block Group	1
Census Block	1009
Census Tract	2021

Owner

10870 Boulder Canyon Rd is owned and occupied by two individuals who acquired it in December 2016.

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

Owner of Record	2 Individual Names on File
Mailing Address	10870 BOULDER CANYON RD, RANCHO CUCAMONGA, CA 91737-6709
Occupancy	Owner Occupied
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
May 28, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
May 28, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
Jan 6, 2017	Intrafamily Transfer, Transfer · Conventional Mortgage BANK OF AMERICA NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 28, 2013 · Amount on File
Deed Sale	Jun 28, 2013 · Amount on File
Prior Sale	Mar 29, 2013 · Amount on File
Deed Document Number	2013288556
Last Transfer Date	Dec 23, 2016
Transfer Doc	0000007711
Record Updated	Sep 20, 2026

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN BERNARDINO CA
Property Address	10870 BOULDER CANYON RD, RANCHO CUCAMONGA, CA 91737-6709
Transaction Type	Mortgage
Record Updated	Jun 10, 2021
Title Company	ORABGE COAST TITLE, ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	10870 BOULDER CANYON RD, RANCHO CUCAMONGA, CA 91737-6709

Mortgage

Document Number	0000248542
Date	May 28, 2021
Instrument	2021-0248542

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	181 Months
Due	Jun 1, 2036

May 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN BERNARDINO CA
Property Address	10870 BOULDER CANYON RD, RANCHO CUCAMONGA, CA 91737-6709
Transaction Type	Mortgage
Record Updated	Jun 10, 2021
Title Company	ORABGE COAST TITLE, ORANGE COAST TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	10870 BOULDER CANYON RD, RANCHO CUCAMONGA, CA 91737-6709

Mortgage

Document Number	0000248521
Date	May 28, 2021
Instrument	2021-0248521

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	181 Months
Due	Jun 1, 2036

January 2017: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN BERNARDINO CA
Recording Date	Jan 6, 2017
Property Address	10870 BOULDER CANYON RD, RANCHO CUCAMONGA, CA 91737-6709
Document Number	0000007711
Map Reference	MB209 PG91-94
Instrument Date	Dec 23, 2016
Instrument	2017-0007711
Transaction Type	Transfer
Record Updated	Aug 31, 2021

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	10870 BOULDER CANYON RD, RANCHO CUCAMONGA, CA 91737-6709

Mortgage

Document Number	0000007712
Date	Jan 6, 2017
Instrument	2017-0007712

Lender

Name	BANK OF AMERICA NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Jan 1, 2032

Tax Assessment & Valuation

The 2025 property tax bill for 10870 Boulder Canyon Rd was $8,175 with a homeowner's exemption.

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

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$746,096 (+2%) Land $261,259 Building $484,837
2025	$8,175.00 Homeowner's exemption	$731,466 Land $256,136 Building $475,330
2023	$7,794.00 (+0.27%) Homeowner's exemption	$703,063 Land $246,190 Building $456,873
2022	$7,773.00

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

Flood

FEMA maps place 10870 Boulder Canyon Rd in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 10870 Boulder Canyon Rd is high, ranking above 70% of the US, with a 0.2% annual chance of wildfire.

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

Wildfire Risk	High above 70% of the US · above 45% of California
Wildfire Likelihood	0.2% annual chance
Exposure	Indirect 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	CUCAMONGA VALLEY WATER DISTRICT serves 213,375 people · EPA ID CA3610018
Water Source	Surface water
Last State Inspection	Feb 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 219 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20

Cell Coverage

5G (outdoors only) and 4G LTE

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