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1 Baldwin Ave, Apt 421, San Mateo, CA 94401 Property Records

San Mateo County property record for 1 Baldwin Ave, Apt 421, San Mateo, CA 94401

Property Summary

Property TypeCondominium
Details1 bd · 1 ba · 800 sqft · built 1988
Lot Size1.98 acres (86,325 sqft)
Owner2 Company Names on Record
Last Sale$265,000 (Aug 2023)
Tax Bill$2,719 (2025)
Deeds & MortgagesAug 2023 Sale
Apr 2019 Transfer
+ 2 more
Flood ZoneZone X (moderate risk)
APN109-620-430

Property Details

APN / Parcel Number

Primary APN109-620-430

Interior

Bedrooms1 Bed
Full Baths1 Bath
Total Rooms3 Rooms
Units207 Units
Stories1 Story
Building Area800 sqft Living Area
1st Floor Area800 sqft
Game RoomGame Room

Exterior

Year BuiltBuilt 1988
Effective Year BuiltEffective 1988
Architectural StyleCondo/Apartment
Lot Area86,325 sqft
Garage TypeCarport
CarportCarport

Location & Zoning

Street Address1 BALDWIN AVE, 421
CitySAN MATEO
StateCA
Zip94401-3849
Property CategoryResidential
Property TypeResidential > Condominium / Townhouse > Condominium
Local Zoning CodeE30000
Legal DescriptionUNIT 421 PENINSULA REGENT 88170181
Legal SubdivisionPENINSULA REGENT
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group3
Census Block3005
Census Tract606300

Owner

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

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Company Names on Record
Mailing Address1 BALDWIN AVE, 421, SAN MATEO, CA 94401-3849
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Aug 17, 2023Grant Deed, Transfer
FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO
Apr 3, 2019Quit Claim Deed, Transfer
FIRST AMERICAN TITLE
Apr 3, 2019Grant Deed, Transfer
FIRST AMERICAN TITLE
Jan 11, 2018Affidavit of Death, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 17, 2023 · Amount on Record
Deed SaleAug 17, 2023 · Amount on Record
Prior SaleApr 18, 1995 · Amount on Record
Deed Document Number202339712
Prior Transfer DateApr 1, 2019
Prior Transfer Doc0000023572
Record UpdatedOct 29, 2026

August 2023: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN MATEO CA
Recording DateAug 17, 2023
Property Address1 BALDWIN AVE APT 421, 421, SAN MATEO, CA 94401-3849
Document Number0000039712
Map ReferenceDOC 88170181
Instrument DateJul 31, 2023
Instrument2023-039712
Transaction TypeTransfer
Record UpdatedSep 27, 2023
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

AmountAmount Recorded
Tax$1,616.50
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address1 BALDWIN AVE APT 421, 421, SAN MATEO, CA 94401-3849

April 2019: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateApr 3, 2019
Property Address1 BALDWIN AVE APT 421, 421, SAN MATEO, CA 94401-3849
Document Number0000023572
Instrument DateApr 1, 2019
Instrument23572
Transaction TypeTransfer
Record UpdatedApr 23, 2019
Title CompanyFIRST AMERICAN TITLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address228 IRVING ST SAN MATEO CA 944022222, SAN MATEO, CA 94402-2222

April 2019: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN MATEO CA
Recording DateApr 3, 2019
Property Address1 BALDWIN AVE APT 421, 421, SAN MATEO, CA 94401-3849
Document Number0000023573
Instrument DateMar 31, 2019
Instrument23573
Transaction TypeTransfer
Record UpdatedApr 26, 2019
Title CompanyFIRST AMERICAN TITLE

Transaction

AmountAmount Recorded
Tax$439.45
Amount AccuracyFull Value
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address1 BALDWIN AVE #421 SAN MATEO CA 944013849, 421, SAN MATEO, CA 94401-3849

January 2018: Affidavit of Death, Transfer

Document TypeAffidavit of Death
JurisdictionSAN MATEO CA
Recording DateJan 11, 2018
Property Address1 BALDWIN AVE APT 421, 421, SAN MATEO, CA 94401-3849
Document Number0000001749
Instrument DateDec 4, 2017
Instrument1749
Transaction TypeTransfer
Record UpdatedMar 1, 2018
Title CompanyATTORNEY ONLY

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipRevocable Trust
Address228 IRVING ST SAN MATEO CA 944022222, SAN MATEO, CA 94402-2222

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountySan Mateo County
MunicipalitySan Mateo City
Elementary School DistrictSan Mateo-Foster City Elementary School District (KG - 08)
Secondary School DistrictSan Mateo Union High School District (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$148,000 (+13.85%) Land $44,000 Building $104,000
2025$2,719.00 (-49.69%) Homeowner's exemption$130,000 (-69.65%) Land $39,000 Building $91,000
2023$5,405.00 (-16.55%)$428,342 Land $128,502 Building $299,840
2022$6,477.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

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

FEMA Flood ZoneZone X
moderate risk
500-Year FloodplainYes
0.2% annual chance
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies2 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

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

Wildfire RiskNot rated
no burnable land 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 SystemCALIFORNIA WATER SERVICE - SAN MATEO
private · serves 103,536 people · EPA ID CA4110008
Water SourcePurchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State InspectionMar 2025
Lead4 ppb (2023–2025)
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 565 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Astound Broadband
Cable		1,500 / 50
T-Mobile
Fixed Wireless		100 / 20
AT&T
DSL · Fiber, Fixed Wireless in parts of the area		100 / 20

May also be available: Etheric Networks, GeoLinks, Sonic Telecom, Verizon.

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