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166 Warren Rd, San Mateo, CA 94401 Property Records

San Mateo County property record for 166 Warren Rd, San Mateo, CA 94401 · Last verified August 2026

Property Highlights

Property TypeResidential > Single Family > Home
Bedrooms3 Beds
Bathrooms1.5 Baths
Year BuiltBuilt 1922
Square Footage1,540 sqft Living Area
Lot Size5,248 sqft (0.121 acres)
Garage360 sqft
Last Sale$2,540,000 (2020)
Tax Bill$6,596.00 (2025)

Owner

Source: San Mateo County records · APN 032-081-060

Assessment roll updated July 15, 2026 · Last verified August 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 File
Mailing Address166 WARREN RD, SAN MATEO, CA 94401-3720
Owner TypeOwner is a Company
VestingOwner is a Trust, Trust

Deeds, Mortgages & Sale History

DateDocument
Dec 28, 2023Intrafamily Transfer, Transfer
Sep 22, 2020Grant Deed, Transfer
LAWYERS TITLE
Feb 28, 2019Deed of Trust, Mortgage · Conventional Mortgage
UPWARD CU

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleSep 22, 2020 · Amount on Record
Deed SaleSep 22, 2020 · Amount on Record
Prior SaleAug 23, 2005 · Amount on Record
Deed Doc Number202099438
Last Transfer DateNov 09, 2023
Transfer Doc0000068531
Record RefreshedSep 20, 2026

December 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionSAN MATEO CA
Recording DateDec 28, 2023
Property Address166 WARREN RD, SAN MATEO, CA 94401-3720
Document Number0000068531
Map ReferenceMB E PG 23
Instrument DateNov 09, 2023
Instrument2023-068531
Transaction TypeTransfer
Record UpdatedJan 26, 2024

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Interfamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address166 WARREN RD, SAN MATEO, CA 94401-3720

September 2020: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN MATEO CA
Recording DateSep 22, 2020
Property Address166 WARREN RD, SAN MATEO, CA 94401-3720
Document Number0000099438
Instrument DateSep 17, 2020
Instrument99438
Transaction TypeTransfer
Record UpdatedOct 23, 2020
Title CompanyLAWYERS TITLE

Transaction

AmountAmount Recorded
Tax$2,794.00
Amount AccuracyFull Value
Additional
  • Arms Length Transaction

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property
Address166 WARREN RD SAN MATEO CA 944013720, SAN MATEO, CA 94401-3720

February 2019: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionSAN MATEO CA
Property Address166 WARREN RD, SAN MATEO, CA 94401-3720
Document Number0000019337
Instrument DateFeb 28, 2019
Transaction TypeMortgage
Record UpdatedApr 09, 2019
Title CompanySERVICELINK

Transferred To (Grantee/Buyer)

NameVerified Name
Address166 WARREN RD SAN MATEO CA 944013720, SAN MATEO, CA 94401-3720

Mortgage

Document Number0000019337
DateMar 20, 2019
Instrument19337
Lender
NameUPWARD CU
AddressBURLINGAME, CA 94010
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term240 Months
DueMar 19, 2039

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified August 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

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.

YearTax BillAssessed ValueAssessed Market Value
2026$444,750 (+2%) Land $117,805 Building $326,945
2025$6,596.00 (+4.32%)$436,031 (+4.04%) Land $115,496 Building $320,535
2023$6,323.00 (-0.43%) Homeowner's exemption$419,101 Land $111,012 Building $308,089$2,017,800
2022$6,350.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified: October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

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

Property Details

APN / Parcel Number

Primary APN032-081-060

Interior

Bedrooms3 Beds
Full Baths1.5 Baths
Partial Baths1 Partial Baths
Total Rooms6 Rooms
Building Area1,540 sqft Living Area
1st Floor1,540 sqft 1st Floor
Family RoomFamily Room
Stories1 Stories
FireplaceFireplace
Fireplaces1 Fireplaces

Exterior

Year BuiltBuilt 1922
Effective Year BuiltEffective 1922
Architectural StyleBungalow Style
Exterior MaterialStucco Exterior
Construction TypeFrame Construction
Roof MaterialComposition Shingle Roof
Lot Area5,248 sqft (0.121 acres)
Depth X Width114 ft x 45 ft Depth x Width
Parking Spaces1 Parking Spaces
Garage Area360 sqft Garage

Utilities and HVAC

Cooling SystemCentral Cooling
Heating SystemCentral Heating
Heating FuelGas Heating Fuel
SewageMunicipal Sewage
Water SourceCommercial Water Source

Location & Zoning

Street Address166 WARREN RD
CitySAN MATEO
StateCA
Zip94401-3720
Property UsageResidential Property Usage
TypeResidential > Single Family > Home
Legal DescriptionLOT 26 BALDWIN HOWELL SUB RSM E/23 CITY OF SAN MATEO
Legal SubdivisionBALDWIN HOWELL SUB
Legal Lot Number26
JurisdictionSAN MATEO CA
Minor Civil DivisionSAN MATEO
Census Blockgroup1
Census Block1000
Census Tract605800

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