660 Northern Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 660 Northern Ave, Mill Valley, CA 94941

Property Summary

Property TypeSingle Family Home
Details4 bd · 2.5 ba · 2,473 sqft · built 1956
Lot Size0.258 acres (11,250 sqft)
Owner2 Individual Names on File
Last Sale$1,400,000 (Feb 2015)
Tax Bill$28,211 (2025)
Deeds & MortgagesFeb 2022 Line of Credit
Feb 2021 Line of Credit
+ 1 more
Flood ZoneZone X (minimal risk)
APN049-112-07

Property Details

APN / Parcel Number

Primary APN049-112-07

Interior

Bedrooms4 Beds
Full Baths2.5 Baths
Half Baths1 Half Bath
Building Area2,473 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1956
Effective Year BuiltEffective 1998
Architectural StyleContemporary
Lot Area11,250 sqft (0.258 acres)
Deck Area432 sqft
Patio Area432 sqft

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address660 NORTHERN AVE
CityMILL VALLEY
StateCA
Zip94941-3934
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionBLK 7 LOT 9
Legal SubdivisionLITTLE CITY FARMS
Legal Block7
Legal Lot Number9
JurisdictionMARIN CA
Township / Civil DivisionSOUTHEAST MARIN
Census Block Group2
Census Block2002
Census Tract128100

Owner

Source: Marin County records · APN 049-112-07

Assessment roll updated July 13, 2026 · Last verified July 2026

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

Owner of Record2 Individual Names on File
Mailing Address660 NORTHERN AVE, MILL VALLEY, CA 94941-3934
OccupancyOwner Occupied
Owner TypeIndividual
VestingCommunity Property

Deeds, Mortgages & Sale History

DateDocument
Feb 17, 2022Deed of Trust, Mortgage · Line of Credit
FLAGSTAR BANK FSB
Feb 12, 2021Deed of Trust, Mortgage · Line of Credit
FLAGSTAR BANK FSB
Nov 02, 2020Deed of Trust, Mortgage · Conventional Mortgage
FLAGSTAR BANK FSB

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleFeb 18, 2015 · Amount on Record
Deed SaleFeb 18, 2015 · Amount on Record
Prior SaleAug 26, 1997 · Amount on Record
Deed Document Number20156589
Prior Transfer DateJul 13, 2010
Prior Transfer Doc0000034439
Record UpdatedSep 20, 2026

February 2022: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionMARIN CA
Property Address660 NORTHERN AVE, MILL VALLEY, CA 94941-3934
Transaction TypeMortgage
Record UpdatedMar 04, 2022

Transferred To (Grantee/Buyer)

NameVerified Name
Address660 NORTHERN AVE, MILL VALLEY, CA 94941-3934

Mortgage

Document Number0000006401
DateFeb 17, 2022
Instrument2022-0006401
Lender
NameFLAGSTAR BANK FSB
TypeBank
AddressTROY, MI 48098
Agreement
TypeLine of Credit
AmountAmount Recorded
Term360 Months
DueFeb 01, 2052
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

February 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionMARIN CA
Property Address660 NORTHERN AVE, MILL VALLEY, CA 94941-3934
Transaction TypeMortgage
Record UpdatedFeb 26, 2021
Title CompanyOLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address660 NORTHERN AVE, MILL VALLEY, CA 94941-3934

Mortgage

Document Number0000010285
DateFeb 12, 2021
Instrument2021-0010285
Lender
NameFLAGSTAR BANK FSB
TypeBank
AddressTROY, MI 48098
Agreement
TypeLine of Credit
AmountAmount Recorded
Term360 Months
DueFeb 01, 2051
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

November 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionMARIN CA
Property Address660 NORTHERN AVE, MILL VALLEY, CA 94941-3934
Transaction TypeMortgage
Record UpdatedFeb 05, 2021
Title CompanyOLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address660 NORTHERN AVE, MILL VALLEY, CA 94941-3934

Mortgage

Document Number0000054029
DateNov 02, 2020
Instrument2020-0054029
Lender
NameFLAGSTAR BANK FSB
TypeBank
AddressTROY, MI 48098
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term300 Months
DueNov 01, 2045

Tax Assessment & Valuation

Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 2026

Property Jurisdictions

TypeName
StateCalifornia
CountyMarin County
Elementary School DistrictMill Valley Elementary School District (KG - 08)
Secondary School DistrictTamalpais Union High School District (09 - 12)

Tax Bill & Assessment History

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

YearTax BillAssessed Value
2026$1,867,034 (+2%) Land $980,672 Building $886,362
2025$28,211.00 (+7.25%)$1,830,434 (+5.67%) Land $961,448 Building $868,986
2023$26,304.00 (+6.36%)$1,732,210 Land $924,120 Building $808,090
2022$24,731.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 18, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies6 in force
Nearby Flood Claims6 (1982–2019)
Claims Outside the SFHA3 of 6
Most Recent ClaimFeb 2019 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event
  • Coastal Storms, Floods, Slides & Tornadoes, Mar 1983 · 3 claims

Wildfire

Wildfire RiskModerate
above 64% of the US · lower than 61% of California
Wildfire Likelihood0.2% annual chance
ExposureDirect
burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

ProviderMax Down / Up (Mbps)
AT&T
Fiber
5,000 / 5,000
Xfinity
Cable
2,000 / 250

May also be available: Unwired.

Based on FCC filings for 77 locations within half a mile of this property.

Cell Coverage

4G LTE (outdoors only), no 5G reported

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water SystemMARIN MUNICIPAL WATER DISTRICT
serves 188,116 people
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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.

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