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605 4th Ave, Half Moon Bay, CA 94019 Property Records

San Mateo County property record for 605 4th Ave, Half Moon Bay, CA 94019

Property Summary

Property TypeDuplex
Details4 bd · 5 ba · 3,534 sqft · built 2003
Lot Size0.169 acres (7,361 sqft)
OwnerCompany Name on File
Tax Bill$9,856 (2025)
Deeds & MortgagesMay 2020 Transfer
Jan 2020 Transfer
Flood ZoneZone X (minimal risk)
APN064-132-640

Property Details

APN / Parcel Number

Primary APN064-132-640
Alternative APN
  • 064132360

Interior

Bedrooms4 Beds
Full Baths5 Baths
Half Baths2 Half Baths
Total Rooms8 Rooms
Units2 Units
Stories2 Stories
Building Area3,534 sqft Living Area

Exterior

Year BuiltBuilt 2003
Effective Year BuiltEffective 2003
Architectural StyleDuplex Single
Lot Area7,361 sqft (0.169 acres)
Lot Dimensions129 ft deep x 57 ft wide
View / LotCorner
Parking Spaces4 Parking Spaces

Location & Zoning

Street Address605 FOURTH AVE
CityHALF MOON BAY
StateCA
Zip94019-2196
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Legal DescriptionLOTS 1&2 BLK 5 & ADJ PTN ALLEY ABAND ARLETA PARK 2ND ADDITION
Legal SubdivisionARLETA PARK 2ND ADD
Legal Block5
Legal Lot Number1,2
JurisdictionSAN MATEO CA
Township / Civil DivisionHALF MOON BAY
Census Block Group3
Census Block3021
Census Tract613702

Owner

605 4th Ave, a duplex, is owned by a company that acquired it in January 2020.

Source: San Mateo County records, as of July 15, 2026

Owner of RecordCompany Name on File
Mailing Address1580 LAUREL ST, C, SAN CARLOS, CA 94070-5158
Owner TypeCompany

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

DateDocument
May 18, 2020Quit Claim Deed, Transfer
ATTORNEY ONLY
Jan 29, 2020Correction Deed
ATTORNEY ONLY

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateJan 23, 2020
Transfer Doc0000007876
Record UpdatedOct 29, 2026

May 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateMay 18, 2020
Property Address605 FOURTH AVE, HALF MOON BAY, CA 94019-2196
Document Number0000044878
Instrument DateApr 3, 2020
Instrument44878
Transaction TypeTransfer
Record UpdatedJun 9, 2020
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address605 FOURTH AVE HALF MOON BAY CA 940192196, HALF MOON BAY, CA 94019-2196

January 2020: Correction Deed

Document TypeCorrection Deed
JurisdictionSAN MATEO CA
Recording DateJan 29, 2020
Property Address605 FOURTH AVE, HALF MOON BAY, CA 94019-2196
Document Number0000007876
Instrument DateJan 23, 2020
Instrument7876
Record UpdatedFeb 27, 2020
Title CompanyATTORNEY ONLY

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSeparate Estate/Property
Address1580 LAUREL ST #C SAN CARLOS CA 940705158, C, SAN CARLOS, CA 94070-5158

Tax Assessment & Valuation

The 2025 property tax bill for 605 4th Ave was $9,856, up 5.3% from the year before.

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountySan Mateo County
MunicipalityHalf Moon Bay City
Unified School DistrictCabrillo Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$605,145 (+2%) Land $20,714 Building $584,431
2025$9,856.00 (+5.34%)$593,280 Land $20,308 Building $572,972
2024$9,356.00 (+5.77%)
2023$8,846.00 (+4.14%)$570,244 Land $19,520 Building $550,724
2022$8,494.00

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

Flood

FEMA maps place 605 4th Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies3 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 605 4th Ave is low, with a 0.04% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 66% of the US · lower than 80% of California
Wildfire Likelihood0.04% annual chance
ExposureIndirect
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 SystemCOASTSIDE COUNTY WATER DISTRICT
serves 19,033 people · EPA ID CA4110011
Water SourceSurface water
Last State InspectionJul 2023
Lead2 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 374 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Cruzio
Fixed Wireless		1,000 / 1,000
Verizon
Fixed Wireless		300 / 20
AT&T
Fixed Wireless · Fiber in parts of the area		100 / 20

May also be available: T-Mobile.

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