521 Winston Ave, Pasadena, CA 91107 Property Records

Los Angeles County property record for 521 Winston Ave, Pasadena, CA 91107

Property Summary

Property Type	Single Family Home
Details	3 bd · 3 ba · 2,832 sqft · built 1927
Lot Size	0.227 acres (9,878 sqft)
Owner	2 Company Names on Record
Last Sale	$545,000 (May 1998)
Tax Bill	$18,295 (2025)
Deeds & Mortgages	Oct 2022 Line of Credit Mar 2022 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`5331-001-019`

Property Details

APN / Parcel Number

Primary APN	`5331-001-019`

Interior

Bedrooms	3 Beds
Full Baths	3 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,832 sqft Living Area
Basement Area	150 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1927
Effective Year Built	Effective 1931
Architectural Style	Tudor
Exterior Material	Stucco
Construction Type	Wood
Roof Type	Gable
Roof Material	Wood Shingle
Lot Area	9,878 sqft (0.227 acres)
Lot Dimensions	165 ft deep x 60 ft wide
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	521 WINSTON AVE
City	PASADENA
State	CA
Zip	91107-5246
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	LCR1*
Legal Description	TRACT NO 8996 LOT 20
Legal Subdivision	8996
Legal Tract	8996
Legal Block	1
Legal Lot Number	20
Jurisdiction	LOS ANGELES CA
Township / Civil Division	PASADENA
Census Block Group	1
Census Block	1008
Census Tract	463300

Owner

Source: Los Angeles County records, as of August 28, 2026

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

Owner of Record	2 Company Names on Record
Mailing Address	521 WINSTON AVE, PASADENA, CA 91107-5246
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Oct 27, 2022	Deed of Trust, Mortgage · Line of Credit CALTECH EMPLOYEES FCU
Mar 1, 2022	Intrafamily Transfer, Transfer
Oct 16, 2017	Deed of Trust, Mortgage · Line of Credit CALTECH EMPS FCU
Aug 15, 2017	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 11, 1998 · Amount on Record
Deed Sale	May 11, 1998 · Amount on Record
Deed Document Number	1998786198
Last Transfer Date	Apr 16, 1999
Transfer Doc	0000704290
Record Updated	Oct 29, 2026

October 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	521 WINSTON AVE, PASADENA, CA 91107-5246
Transaction Type	Mortgage
Record Updated	Nov 3, 2022
Title Company	FIRST AMERICAN TITLE COMPANY

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0001023719
Date	Oct 27, 2022
Instrument	22-1023719

Lender

Name	CALTECH EMPLOYEES FCU
Type	Credit Union
Address	LA CANADA FLINTRIDGE, CA 91011

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Oct 26, 2042

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

March 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Mar 1, 2022
Property Address	521 WINSTON AVE, PASADENA, CA 91107-5246
Document Number	0000232973
Map Reference	MB 119 PG 92
Instrument Date	Jan 13, 2022
Instrument	22-0232973
Transaction Type	Transfer
Record Updated	Jun 7, 2023

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	Family Trust
Address	521 WINSTON AVE, PASADENA, CA 91107-5246

October 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	521 WINSTON AVE, PASADENA, CA 91107-5246
Document Number	0001203895
Instrument Date	Oct 16, 2017
Transaction Type	Mortgage
Record Updated	Oct 24, 2017
Title Company	FIRST AMERICAN TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	521 WINSTON AVE PASADENA CA 911075246, PASADENA, CA 91107-5246

Mortgage

Document Number	0001203895
Date	Oct 20, 2017
Instrument	1203895

Lender

Name	CALTECH EMPS FCU
Type	Credit Union
Address	LA CANADA FLINTRIDGE, CA 91011

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Oct 19, 2037

Interest

Rate Type	Adjustable Rate

August 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 15, 2017
Property Address	521 WINSTON AVE, PASADENA, CA 91107-5246
Document Number	0000920695
Map Reference	MB119 PG92
Instrument Date	Jul 18, 2017
Instrument	17-0920695
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	LAWYERS TITLE

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	521 WINSTON AVE, PASADENA, CA 91107-5246

Mortgage

Document Number	0000920696
Date	Aug 15, 2017
Instrument	17-0920696

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2047

Tax Assessment & Valuation

Source: Los Angeles County assessment roll, as of August 25, 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Unified School District	Pasadena Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,624,813 (+2%) Land $1,017,018 Building $607,795
2025	$18,295.00 (+4.35%) Homeowner's exemption	$1,592,955 (+4.04%) Land $997,077 Building $595,878
2023	$17,532.00 (+3.59%) Homeowner's exemption	$1,531,101 Land $958,360 Building $572,741
2022	$16,924.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective September 30, 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	CAL/AM WATER COMPANY - SAN MARINO private · serves 48,065 people · EPA ID CA1910139
Water Source	Purchased surface water from several systems
Last State Inspection	Nov 2025
Lead	Under 1 ppb (2024–2026) 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 803 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless · DSL	5,000 / 5,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Starry.

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