1. Home
  2. California
  3. San Mateo County
  4. San Mateo
  5. S B St

701 S B St, San Mateo, CA 94401 Property Records

San Mateo County property record for 701 S B St, San Mateo, CA 94401

Property Summary

Property TypeCommercial Office
Details5,200 sqft · built 1948
Lot Size0.232 acres (10,101 sqft)
OwnerCompany Name on Record
Tax Bill$6,902 (2025)
Deeds & MortgagesJun 2017 Transfer
Jan 2017 Mortgage
Flood ZoneZone X (minimal risk)
APN034-195-050

Property Details

APN / Parcel Number

Primary APN034-195-050

Interior

Stories2 Stories
Building Area5,200 sqft Gross Area

Exterior

Year BuiltBuilt 1948
Effective Year BuiltEffective 2009
Fire ResistanceFireproof Reinforced Concrete
Lot Area10,101 sqft (0.232 acres)

Location & Zoning

Street Address701 S B ST
CitySAN MATEO
StateCA
Zip94401
Property CategoryCommercial
Property TypeCommercial > Office > Commercial Office
Local Zoning CodeCL00C2
Legal DescriptionLOTS 1 2 BLOCK 6 HAYWARD ADDITION TO CITY OF SAN MATEO RSM D/61
Legal SubdivisionHAYWARD ADDITION TO CITY OF SAN MATEO
Legal Block6
Legal Lot Number1
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group2
Census Block2020
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 RecordCompany Name on Record
Mailing Address300 7TH AVE, SAN MATEO, CA 94401-4218
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

DateDocument
Jun 22, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY
Jan 13, 2017Grant Deed, Transfer · Commercial Mortgage
UNITED BUSINESS BANK FSB

Assessor's Deed Record

Deed NamesName on Deed
Last Transfer DateMar 24, 2017
Transfer Doc0000053576
Record UpdatedSep 20, 2026

June 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateJun 22, 2017
Property Address701 S B ST, SAN MATEO, CA 94401
Document Number0000053576
Instrument DateMar 24, 2017
Instrument53576
Transaction TypeTransfer
Record UpdatedJan 26, 2018
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
Address3271-18TH ST SAN FRANCISCO CA 94110, SAN FRANCISCO, CA 94110

January 2017: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionSAN MATEO CA
Recording DateJan 13, 2017
Property Address701 S B ST, SAN MATEO, CA 94401
Document Number0000004219
Map ReferenceMAP D PG61
Instrument DateMay 4, 2016
Instrument2017-004219
Transaction TypeTransfer
Record UpdatedAug 9, 2021
Title CompanyOLD REPUBLIC TITLE COMPANY

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address300 7TH AVE, SAN MATEO, CA 94401-4218

Mortgage

Document Number0000004220
DateJan 13, 2017
Instrument2017-004220
Lender
NameUNITED BUSINESS BANK FSB
TypeBank
Agreement
TypeCommercial Mortgage
AmountAmount Recorded

Mortgage

Document Number0000004223
DateJan 13, 2017
Instrument2017-004223
Lender
NameUNITED BUSINESS BANK FSB
TypeBank
AddressOAKLAND, CA 94621
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

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$479,681 (+0.12%) Land $113,086 Building $366,595
2025$6,902.00 (+4.28%)$479,094 (+0.46%) Land $110,869 Building $368,225
2023$6,619.00 (+2.52%)$476,918 Land $106,565 Building $370,353
2022$6,456.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective September 10, 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 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 915 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · Fixed Wireless, DSL in parts of the area		5,000 / 5,000
Xfinity
Cable		2,000 / 250
Astound Broadband
Cable		1,500 / 50
Sonic Telecom
Fiber		1,000 / 1,000
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
Etheric Networks
Fixed Wireless		250 / 100
T-Mobile
Fixed Wireless		100 / 20

May also be available: GeoLinks.

Nearby Properties on S B St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures