143 E 1st St, San Dimas, CA 91773 Property Records

Los Angeles County property record for 143 E 1st St, San Dimas, CA 91773

Property Summary

Property Type	Quadplex
Details	4 bd · 4 ba · 2,444 sqft · built 1948
Lot Size	0.164 acres (7,131 sqft)
Owner	2 Company Names on Record
Tax Bill	$9,055 (2025)
Deeds & Mortgages	May 2023 Transfer Jan 2021 Transfer + 4 more
Flood Zone	Zone X (minimal risk)
APN	`8387-017-023`

Property Details

APN / Parcel Number

Primary APN	`8387-017-023`

Interior

Bedrooms	4 Beds
Full Baths	4 Baths
Units	4 Units
Building Area	2,444 sqft Living Area

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1948
Architectural Style	Quadruplex
Construction Type	Wood
Lot Area	7,131 sqft (0.164 acres)

Utilities, Heating & Cooling

Cooling System	HVAC

Location & Zoning

Street Address	143 E 1ST ST
City	SAN DIMAS
State	CA
Zip	91773-2621
Property Category	Residential
Property Type	Residential > Multi-Unit > Quadplex
Local Zoning Code	SDMFD*
Legal Description	SAN DIMAS LOT 314
Legal Subdivision	TOWN OF SAN DIMAS
Legal Block	1
Legal Lot Number	314
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1014
Census Tract	400304

Owner

Source: Los Angeles County records, as of August 25, 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	35 ASH AVE, CAYUCOS, CA 93430-1161
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
May 5, 2023	Intrafamily Transfer, Transfer ACCOMMODATION
Jan 8, 2021	Quit Claim Deed, Transfer NOT AVAILABLE
Jan 8, 2021	Quit Claim Deed, Transfer NOT AVAILABLE
Dec 24, 2020	Quit Claim Deed, Transfer LAWYERS TITLE
Dec 24, 2020	Quit Claim Deed, Transfer NOT AVAILABLE
Dec 24, 2020	Affidavit of Death, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Dec 10, 2020
Transfer Doc	0001724206
Record Updated	Oct 29, 2026

May 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	May 5, 2023
Property Address	143 E 1ST ST, SAN DIMAS, CA 91773-2621
Document Number	0000294591
Map Reference	MB 16 PG 53&54
Instrument Date	Apr 27, 2023
Instrument	23-0294591
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	ACCOMMODATION

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	35 ASH AVE, CAYUCOS, CA 93430-1161

January 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 8, 2021
Property Address	143 E 1ST ST, SAN DIMAS, CA 91773-2621
Document Number	0000033387
Instrument Date	Dec 10, 2020
Instrument	33387
Transaction Type	Transfer
Record Updated	Jan 14, 2021
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	35 ASH AVE CAYUCOS CA 934301161, CAYUCOS, CA 93430-1161

January 2021: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Jan 8, 2021
Property Address	143 E 1ST ST, SAN DIMAS, CA 91773-2621
Document Number	0000033386
Instrument Date	Dec 10, 2020
Instrument	33386
Transaction Type	Transfer
Record Updated	Jan 14, 2021
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	35 ASH AVE CAYUCOS CA 934301161, CAYUCOS, CA 93430-1161

December 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 24, 2020
Property Address	143 E 1ST ST, SAN DIMAS, CA 91773-2621
Document Number	0001724206
Instrument Date	Dec 10, 2020
Instrument	1724206
Transaction Type	Transfer
Record Updated	Jan 5, 2021
Title Company	LAWYERS TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	35 ASH AVE CAYUCOS CA 934301161, CAYUCOS, CA 93430-1161

December 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 24, 2020
Property Address	143 E 1ST ST, SAN DIMAS, CA 91773-2621
Document Number	0001724205
Instrument Date	Dec 8, 2020
Instrument	1724205
Transaction Type	Transfer
Record Updated	Jan 5, 2021
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	35 ASH AVE CAYUCOS CA 934301161, CAYUCOS, CA 93430-1161

December 2020: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	LOS ANGELES CA
Recording Date	Dec 24, 2020
Property Address	143 E 1ST ST, SAN DIMAS, CA 91773-2621
Document Number	0001724204
Instrument Date	Dec 8, 2020
Instrument	1724204
Transaction Type	Transfer
Record Updated	Jan 6, 2021
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4146 ATLANTIC CIR LA VERNE CA 917503007, LA VERNE, CA 91750-3007

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	San Dimas City
Unified School District	Bonita Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$658,284 (+2%) Land $438,470 Building $219,814
2025	$9,055.00 (+173.9%)	$645,377 (+289.55%) Land $429,873 Building $215,504
2023	$3,306.00 (+1.91%)	$165,672 Land $26,396 Building $139,276
2022	$3,244.00

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	Low lower than 99.1% of the US · lower than 99.2% 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	GSWC-SAN DIMAS private · serves 56,564 people · EPA ID CA1910142
Water Source	Purchased surface water from several systems
Last State Inspection	May 2025
Also Mapped Here	METROPOLITAN WATER DIST. OF SO. CAL.
Lead	2 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 627 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

Nearby Properties on E 1st St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures