21071 Lycoming St, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 21071 Lycoming St, Diamond Bar, CA 91789

Property Summary

Property Type	Condominium
Details	2 bd · 1 ba · 882 sqft · built 1975
Lot Size	0.356 acres (15,517 sqft)
Owner	2 Company Names on File
Tax Bill	$1,952 (2025)
Deeds & Mortgages	Aug 2020 Transfer
Flood Zone	Zone X (minimal risk)
APN	`8719-012-049`

Property Details

APN / Parcel Number

Primary APN	`8719-012-049`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	2 Stories
Building Area	882 sqft Living Area

Exterior

Year Built	Built 1975
Effective Year Built	Effective 1975
Architectural Style	Contemporary
Exterior Material	Stucco
Construction Type	Wood
Roof Material	Composition Shingle
Lot Area	15,517 sqft (0.356 acres)
Garage Type	Attached

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	21071 LYCOMING ST
City	WALNUT
State	CA
Zip	91789-3206
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Local Zoning Code	LCR3*
Legal Description	TRACT NO 27390 PHASE 1 CONDOMINIUM UNIT 49
Legal Subdivision	27390
Legal Tract	27390
Legal Block	3
Legal Lot Number	14,17
Jurisdiction	LOS ANGELES CA
Township / Civil Division	EAST SAN GABRIEL VALLEY
Census Block Group	3
Census Block	3005
Census Tract	403328

Owner

Source: Los Angeles County records · APN 8719-012-049

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	21071 LYCOMING ST, 49, WALNUT, CA 91789-3206
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Transfer Date	Jun 04, 2020
Transfer Doc	0000943813
Record Updated	Sep 20, 2026

August 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	LOS ANGELES CA
Recording Date	Aug 13, 2020
Property Address	21071 LYCOMING ST, DIAMOND BAR, CA 91789-3206
Document Number	0000943813
Instrument Date	Jun 04, 2020
Instrument	943813
Transaction Type	Transfer
Record Updated	Sep 22, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	21071 LYCOMING ST WALNUT CA 917893206, WALNUT, CA 91789-3206

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	Walnut Valley 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	$1,952.00 (+6.72%) Homeowner's exemption	$130,353 (+4.04%) Land $49,131 Building $81,222
2023	$1,829.00 (+2.35%) Homeowner's exemption	$125,293 Land $47,224 Building $78,069
2022	$1,787.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 30, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Spectrum Cable · Fiber in parts of the area	1,000 / 1,000
Starlink Satellite	280 / 30

May also be available: California Internet, T-Mobile USA, Verizon.

Based on FCC filings for 504 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	WALNUT VALLEY WATER DISTRICT serves 100,941 people
Water Source	Purchased surface water from several systems
Last State Inspection	Jun 2023
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.