523 E Mariposa Dr, Rialto, CA 92376 Property Records

San Bernardino County property record for 523 E Mariposa Dr, Rialto, CA 92376

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,425 sqft · built 1959
Lot Size	0.223 acres (9,700 sqft)
Owner	2 Individual Names on Record
Last Sale	$355,000 (Apr 2018)
Tax Bill	$5,443 (2025)
Deeds & Mortgages	Aug 2026 Mortgage Apr 2018 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`0133-023-02-0000`

Property Details

APN / Parcel Number

Primary APN	`0133-023-02-0000`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,425 sqft Living Area
Gross Area	1,887 sqft
1st Floor Area	1,425 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1959
Effective Year Built	Effective 1959
Architectural Style	Modern
Construction Type	Frame
Roof Material	Built-Up Asphalt
Lot Area	9,700 sqft (0.223 acres)
Garage Type	Attached
Garage Area	462 sqft
Parking Spaces	2 Parking Spaces
Porch	Patio/Porch
Porch Area	215 sqft
Patio Area	215 sqft

Utilities, Heating & Cooling

Cooling System	Evaporative
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	523 E MARIPOSA DR
City	RIALTO
State	CA
Zip	92376-3640
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TRACT 5411 LOT 15
Legal Subdivision	74M56
Legal Tract	5411
Legal Block	1
Legal Lot Number	15
Jurisdiction	SAN BERNARDINO CA
Township / Civil Division	SAN BERNARDINO
Census Block Group	1
Census Block	1009
Census Tract	3801

Owner

Source: San Bernardino County records, as of August 20, 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	523 E MARIPOSA DR, RIALTO, CA 92376-3640
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Aug 5, 2026	Deed of Trust, Mortgage · Conventional Mortgage UNION FEDERAL CREDIT UNION
Apr 16, 2018	Grant Deed, Transfer · FHA Mortgage BRIGHTEN LENDING
Oct 20, 2017	Grant Deed, Transfer USA NATIONAL TITLE COMPANY, USA NAT'L TITLE CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 16, 2018 · Amount on Record
Deed Sale	Apr 16, 2018 · Amount on Record
Prior Sale	Oct 20, 2017 · Amount on Record
Deed Document Number	2018136379
Prior Transfer Date	Apr 19, 2005
Prior Transfer Doc	0000289132
Record Updated	Oct 29, 2026

August 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN BERNARDINO CA
Recording Date	Aug 5, 2026
Property Address	523 E MARIPOSA DR, RIALTO, CA 92376-3640
Document Number	0000200770
Instrument Date	Jul 31, 2026
Instrument	2026200770
Transaction Type	Mortgage
Record Updated	Aug 20, 2026
Title Company	WESTERN RESOURCES TITLE, WESTERN RESOURCES TITLE COMP

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants, 205
Address	523 E MARIPOSA DR, RIALTO, CA 92376-3640

Mortgage

Document Number	0000200770,
Date	Aug 5, 2026
Instrument	2026200770

Lender

Name	UNION FEDERAL CREDIT UNION

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	240 Months
Due	Aug 5, 2046

Interest

Rate Type	Fixed Rate
Rate	6.43%
Initial Type	Fixed Rate
Max Rate	-1%

April 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN BERNARDINO CA
Recording Date	Apr 16, 2018
Property Address	523 E MARIPOSA DR, RIALTO, CA 92376-3640
Document Number	0000136379
Map Reference	MB 74 PG 56
Instrument Date	Apr 12, 2018
Instrument	2018-0136379
Transaction Type	Transfer
Record Updated	Aug 31, 2021
Title Company	WESTMINSTER 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	Joint Tenants
Address	523 E MARIPOSA DR, RIALTO, CA 92376-3640

Mortgage

Document Number	0000136380
Date	Apr 16, 2018
Instrument	2018-0136380

Lender

Name	BRIGHTEN LENDING
Type	Mortgage Company

Agreement

Type	FHA Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2048

October 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN BERNARDINO CA
Recording Date	Oct 20, 2017
Property Address	523 E MARIPOSA DR, RIALTO, CA 92376-3640
Document Number	0000436055
Instrument Date	Oct 16, 2017
Instrument	436055
Transaction Type	Transfer
Record Updated	Oct 30, 2017
Title Company	USA NATIONAL TITLE COMPANY, USA NAT'L TITLE CO

Transaction

Amount	Amount Recorded
Tax	$284.00
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	3155 SEDONA CT #C ONTARIO CA 917646559, C, ONTARIO, CA 91764-6559

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	Rialto City
Unified School District	Rialto Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$412,011 (+2%) Land $103,003 Building $309,008
2025	$5,443.00 (-2.21%)	$403,932 (+4.04%) Land $100,983 Building $302,949
2023	$5,566.00 (+7.91%)	$388,247 Land $97,062 Building $291,185
2022	$5,158.00

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	Low lower than 95% of the US · lower than 97% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond 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	CITY OF RIALTO serves 59,264 people · EPA ID CA3610038
Water Source	Purchased surface water from several systems
Last State Inspection	Aug 2024
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 555 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
T-Mobile Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: GeoLinks.

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