170 Irwin St, San Rafael, CA 94901 Property Records

Marin County property record for 170 Irwin St, San Rafael, CA 94901

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 2,250 sqft · built 1984
Lot Size0.379 acres (16,500 sqft)
OwnerCompany on Record
Last Sale$1,200,000 (Apr 2026)
Tax Bill$8,732 (2025)
Deeds & MortgagesApr 2026 Sale
Flood ZoneZone X (minimal risk)
APN013-213-37

Property Details

APN / Parcel Number

Primary APN013-213-37

Interior

Bedrooms3 Beds
Full Baths2 Baths
Building Area2,250 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1984
Effective Year BuiltEffective 1986
Architectural StyleContemporary
Lot Area16,500 sqft (0.379 acres)
Garage Area660 sqft
Parking Spaces2 Parking Spaces
Deck Area701 sqft
Patio Area701 sqft

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address170 IRWIN ST
CitySAN RAFAEL
StateCA
Zip94901-5229
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionMAP 7 PG 39 LOT 3
Legal Lot Number3
JurisdictionMARIN CA
Township / Civil DivisionSAN RAFAEL
Census Block Group2
Census Block2005
Census Tract112100

Owner

Source: Marin County assessment roll, as of July 13, 2026

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

Owner of RecordCompany on Record
Mailing Address360 ASCOT RD, HILLSBOROUGH, CA 94010-7053
Owner TypeCompany
VestingLimited Liability Partnership

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleApr 30, 2026 · Amount on Record
Deed SaleApr 30, 2026 · Amount on Record
Deed Document Number202612738
Prior Transfer DateJun 5, 2025
Prior Transfer Doc0000015907
Record UpdatedSep 20, 2026

April 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionMARIN CA
Recording DateApr 30, 2026
Property Address170 IRWIN ST, SAN RAFAEL, CA 94901-5229
Document Number0000012738
Instrument DateApr 28, 2026
Instrument2026.12738
Transaction TypeTransfer
Record UpdatedMay 11, 2026
Title CompanyWFG NATIONAL TITLE INSURANCE, WFG NATIONAL TITLE INSURANCE C

Transaction

AmountAmount Recorded
Tax$133,320.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLimited Liability Partnership
Address360 ASCOT RD, HILLSBOROUGH, CA 94010-7053

Tax Assessment & Valuation

Source: Marin County assessment roll, as of July 13, 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyMarin County
MunicipalitySan Rafael City
Elementary School DistrictSan Rafael City Elementary School District (KG - 08)
Secondary School DistrictSan Rafael City High School District (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,530,000 (+194.3%) Land $918,000 Building $612,000
2025$8,732.00 (+8.9%)$519,875 (+4.04%) Land $159,306 Building $360,569
2023$8,018.00 (+5.25%) Homeowner's exemption$499,688 Land $153,120 Building $346,568
2022$7,618.00

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 October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 29 policies
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies29 in force
Nearby Flood Claims21 (1980–2017)
Claims Outside the SFHA1 of 21
Most Recent ClaimFeb 2017 · Severe Winter Storms, Flooding, And Mudslides
Claims by Event
  • Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 2 claims
  • Severe Storms & Flooding, Mar 1986 · 4 claims
  • Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 8 claims

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 RiskLow
lower than 95% of the US · lower than 97% of California
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond 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 SystemMARIN MUNICIPAL WATER DISTRICT
serves 188,116 people · EPA ID CA2110002
Water SourceSurface water
Last State InspectionAug 2023
LeadUnder 1 ppb (2019–2021)
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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 328 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
Unwired
Fixed Wireless
300 / 25
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

May also be available: Sonic Telecom.

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