1540 Blackhawk Dr, Diamond Bar (Walnut), CA 91789 Property Records

Los Angeles County property record for 1540 Blackhawk Dr, Diamond Bar, CA 91789

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 2,890 sqft · built 1984
Lot Size0.351 acres (15,284 sqft)
OwnerIndividual Name on Record
Last Sale$835,000 (Aug 2012)
Tax Bill$13,021 (2025)
Deeds & MortgagesOct 2021 Transfer
Flood ZoneZone X (minimal risk)
APN8763-025-021

Property Details

APN / Parcel Number

Primary APN8763-025-021

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms12 Rooms
Stories2 Stories
Building Area2,890 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1984
Effective Year BuiltEffective 1984
Architectural StyleConventional
Exterior MaterialStucco
Construction TypeWood
Roof TypeHip
Roof MaterialWood Shingle
Lot Area15,284 sqft (0.351 acres)
Lot Dimensions140 ft deep x 108 ft wide

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral

Location & Zoning

Street Address1540 BLACKHAWK DR
CityWALNUT
StateCA
Zip91789-3864
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeLCR110000*
Legal Description*TR=30893 LOT 27
Legal Subdivision30893
Legal Tract30893
Legal Block3
Legal Lot Number27
JurisdictionLOS ANGELES CA
Township / Civil DivisionEAST SAN GABRIEL VALLEY
Census Block Group3
Census Block3008
Census Tract408707

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 RecordIndividual Name on Record
Mailing Address1540 BLACKHAWK DR, WALNUT, CA 91789-3864
OccupancyOwner Occupied
Owner TypeIndividual
VestingSole Owner

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleAug 23, 2012 · Amount on Record
Deed SaleAug 23, 2012 · Amount on Record
Deed Document Number20121258853
Prior Transfer DateApr 15, 2010
Prior Transfer Doc0000554582
Record UpdatedOct 29, 2026

October 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionLOS ANGELES CA
Recording DateOct 1, 2021
Property Address1540 BLACKHAWK DR, DIAMOND BAR, CA 91789-3864
Document Number0001495686
Map ReferenceMB 954 PG 16-19
Instrument DateJul 27, 2021
Instrument21-1495686
Transaction TypeTransfer
Record UpdatedOct 8, 2021

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address1540 BLACKHAWK DR, WALNUT, CA 91789-3864

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyLos Angeles County
MunicipalityDiamond Bar City
Unified School DistrictWalnut Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,048,792 (+2%) Land $427,554 Building $621,238
2025$13,021.00 (+7.54%) Homeowner's exemption$1,028,228 (+4.04%) Land $419,171 Building $609,057
2023$12,108.00 (+2.11%) Homeowner's exemption$988,302 Land $402,895 Building $585,407
2022$11,858.00

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 ZoneZone X
minimal risk
Flood Insurance RequirementNot 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 RiskLow
lower than 97% of the US · lower than 97.8% of California
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
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 SystemWALNUT VALLEY WATER DISTRICT
serves 100,941 people · EPA ID CA1910234
Water SourcePurchased surface water from several systems
Last State InspectionJun 2023
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 496 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Frontier
Fiber
7,000 / 7,000
Spectrum
Cable
1,000 / 1,000
T-Mobile
Fixed Wireless
100 / 20

May also be available: GeoLinks, Verizon.

Nearby Properties on Blackhawk Dr

Nearby Streets

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