505 Topside Pl, Diamond Bar, CA 91765 Property Records

Los Angeles County property record for 505 Topside Pl, Diamond Bar, CA 91765 · Last verified June 2026

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,405 sqft · built 1988
Lot Size	0.181 acres (7,874 sqft)
Owner	2 Company Names on File
Last Sale	$320,000 (Apr 2016)
Tax Bill	$5,741 (2025)
Deeds & Mortgages	Aug 2022 Line of Credit Oct 2020 Line of Credit + 2 more
Flood Zone	Zone X (minimal risk)
APN	`8281-047-017`

Property Details

APN / Parcel Number

Primary APN	`8281-047-017`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Building Area	2,405 sqft Living Area

Exterior

Year Built	Built 1988
Effective Year Built	Effective 1988
Construction Type	Wood
Lot Area	7,874 sqft (0.181 acres)

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	505 TOPSIDE PL
City	DIAMOND BAR
State	CA
Zip	91765-1879
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TR=36813 LOT 67
Legal Subdivision	36813
Legal Tract	36813
Legal Block	1
Legal Lot Number	67
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	1
Census Block	1000
Census Tract	403321

Owner

Source: Los Angeles County records · APN 8281-047-017

Assessment roll updated May 21, 2026 · Last verified June 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 File
Mailing Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879
Owner Type	Company
Vesting	Life Tenant

Deeds, Mortgages & Sale History

Date	Document
Aug 04, 2022	Deed of Trust, Mortgage · Line of Credit ZB NA
Oct 26, 2020	Deed of Trust, Mortgage · Line of Credit ZB NA
Jun 10, 2020	Deed of Trust, Mortgage · Conventional Mortgage HOME POINT FINANCIAL CORPORATION
Apr 03, 2018	Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Apr 12, 2016 · Amount on Record
Deed Sale	Apr 12, 2016 · Amount on Record
Deed Document Number	2016401598
Last Transfer Date	Mar 27, 2018
Transfer Doc	0000316105
Record Updated	Sep 20, 2026

August 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879
Transaction Type	Mortgage
Record Updated	Aug 11, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879

Mortgage

Document Number	0000788495
Date	Aug 04, 2022
Instrument	22-0788495

Lender

Name	ZB NA
Type	Bank
Address	VALENCIA, CA 91355

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879
Transaction Type	Mortgage
Record Updated	Feb 05, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879

Mortgage

Document Number	0001337093
Date	Oct 26, 2020
Instrument	20-1337093

Lender

Name	ZB NA
Type	Bank
Address	VALENCIA, CA 91355

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LOS ANGELES CA
Property Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879
Transaction Type	Mortgage
Record Updated	Feb 05, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000629029
Date	Jun 10, 2020
Instrument	20-0629029

Lender

Name	HOME POINT FINANCIAL CORPORATION
Type	Mortgage Company
Address	PARSIPPANY, NJ 07054

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 01, 2050

April 2018: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	LOS ANGELES CA
Recording Date	Apr 03, 2018
Property Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879
Document Number	0000316105
Map Reference	MB 1033 PG 35-44
Instrument Date	Mar 27, 2018
Instrument	18-0316105
Transaction Type	Transfer
Record Updated	Sep 22, 2021
Title Company	LAWYERS TITLE IE

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	Joint Tenants
Address	505 TOPSIDE PL, DIAMOND BAR, CA 91765-1879

Mortgage

Document Number	0000316106
Date	Apr 03, 2018
Instrument	18-0316106

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Apr 01, 2048

Tax Assessment & Valuation

Source: Los Angeles County records · Assessment roll updated May 21, 2026 · Last verified June 2026

Property Jurisdictions

Type	Name
State	California
County	Los Angeles County
Municipality	Diamond Bar City
Unified School District	Pomona Unified School District (KG - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value
2025	$5,741.00 (+12.26%) Homeowner's exemption	$392,238 (+4.04%) Land $139,710 Building $252,528
2023	$5,114.00 (+1.63%) Homeowner's exemption	$377,009 Land $134,286 Building $242,723
2022	$5,032.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Los Angeles County (06037C), updated September 30, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Special Flood Hazard Area	No
Flood Hazard	Minimal
500-Year Floodplain	No

Wildfire

Wildfire Risk	Moderate above 57% of the US · above 34% of California
Wildfire Likelihood	About 1 in 725 per year
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 487 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Frontier	Fiber	7,000 / 7,000
Spectrum	Cable	1,000 / 1,000
Verizon	Fixed Wireless	300 / 20
T-Mobile USA	Fixed Wireless	100 / 20
AT&T	Fixed Wireless	100 / 20

May also be available at this address: California Internet. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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