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12 Ottawa St, San Mateo, CA 94401 Property Records

San Mateo County property record for 12 Ottawa St, San Mateo, CA 94401

Property Summary

Property TypeSingle Family Home
Details3 bd · 1 ba · 1,140 sqft · built 1947
Lot Size0.109 acres (4,750 sqft)
Owner2 Company Names on Record
Tax Bill$3,957 (2025)
Deeds & MortgagesOct 2023 Transfer
Nov 2017 Transfer
Flood ZoneZone X (reduced by levee)
APN033-181-240

Property Details

APN / Parcel Number

Primary APN033-181-240

Interior

Bedrooms3 Beds
Full Baths1 Bath
Total Rooms5 Rooms
Stories1 Story
Building Area1,140 sqft Living Area
1st Floor Area1,140 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1947
Effective Year BuiltEffective 1947
Architectural StyleRanch
Exterior MaterialOther
Construction TypeFrame
Roof MaterialComposition Shingle
Lot Area4,750 sqft (0.109 acres)
Lot Dimensions95 ft deep x 50 ft wide
Garage Area290 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address12 OTTAWA ST
CitySAN MATEO
StateCA
Zip94401-1305
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR106
Legal DescriptionLOT 24 BLOCK 5 SHORE VIEW TRACT MAP NO 5 RSM 25/41 42 CITY OF SAN MATEO
Legal SubdivisionSHORE VIEW TRACT MAP NO 5
Legal Block5
Legal Lot Number24
JurisdictionSAN MATEO CA
Township / Civil DivisionSAN MATEO
Census Block Group2
Census Block2002
Census Tract606100

Owner

Source: San Mateo County records, as of October 9, 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 Address914 THE ALAMEDA, HALF MOON BAY, CA 94019-4711
Owner TypeCompany
VestingTrust

Deeds, Mortgages & Sale History

DateDocument
Oct 24, 2023Intrafamily Transfer, Transfer
Nov 20, 2017Quit Claim Deed, Transfer
ATTORNEY ONLY

Assessor's Deed Record

Deed Names2 Names on Deed
Last Transfer DateJun 12, 2003
Transfer Doc0000180874
Record UpdatedOct 29, 2026

October 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionSAN MATEO CA
Recording DateOct 24, 2023
Property Address12 OTTAWA ST, SAN MATEO, CA 94401-1305
Document Number0000054400
Map ReferenceMB 25 PG 41&42
Instrument DateSep 12, 2023
Instrument2023-054400
Transaction TypeTransfer
Record UpdatedNov 16, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address914 THE ALAMEDA, HALF MOON BAY, CA 94019-4711

November 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionSAN MATEO CA
Recording DateNov 20, 2017
Property Address12 OTTAWA ST, SAN MATEO, CA 94401-1305
Document Number0000102795
Instrument DateOct 11, 2017
Instrument102795
Transaction TypeTransfer
Record UpdatedJan 3, 2018
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipSole Owner
Address182 BROOKHAVEN DR ROSEVILLE CA 956781081, ROSEVILLE, CA 95678-1081

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 ValueAssessed Market Value
2026$112,914 (+2%) Land $30,602 Building $82,312
2025$3,957.00 (+17.52%)$110,701 (+4.04%) Land $30,002 Building $80,699
2023$3,367.00 (-8.51%)$106,404 Land $28,838 Building $77,566$969,390
2022$3,680.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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
reduced by levee · depends on levee performance
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies8 in force
Nearby Flood Claims3 (1979–2014)
Most Recent ClaimDec 2014 · rainfall accumulation

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 220 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber		5,000 / 5,000
Xfinity
Cable		2,000 / 250
Astound Broadband
Cable		1,500 / 50
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
Etheric Networks
Fixed Wireless		250 / 100

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