647 Northern Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 647 Northern Ave, Mill Valley, CA 94941

Property Summary

Property TypeSingle Family Home
Details2 bd · 1 ba · 1,189 sqft · built 1940
Lot Size0.224 acres (9,750 sqft)
Owner2 Individual Names on File
Last Sale$1,400,000 (Nov 2025)
Tax Bill$5,301 (2025)
Deeds & MortgagesNov 2025 Sale & Mortgage
Dec 2022 Transfer
Flood ZoneZone X (minimal risk)
APN049-121-07

Property Details

APN / Parcel Number

Primary APN049-121-07

Interior

Bedrooms2 Beds
Full Baths1 Bath
Total Rooms9 Rooms
Stories1 Story
Building Area1,189 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1940
Effective Year BuiltEffective 1956
Architectural StyleContemporary
Lot Area9,750 sqft (0.224 acres)
Garage Area392 sqft
Parking Spaces1 Parking Space
Deck Area730 sqft
Patio Area730 sqft

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address647 NORTHERN AVE
CityMILL VALLEY
StateCA
Zip94941-3990
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal SubdivisionLITTLE CITY FARMS 03
Legal Block1
JurisdictionMARIN CA
Township / Civil DivisionSOUTHEAST MARIN
Census Block Group2
Census Block2009
Census Tract128100

Owner

Source: Marin County records · APN 049-121-07

Assessment roll updated July 13, 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 Individual Names on File
Mailing Address647 NORTHERN AVE, MILL VALLEY, CA 94941-3990
OccupancyOwner Occupied
Owner TypeIndividual
VestingJoint Tenants

Deeds, Mortgages & Sale History

DateDocument
Nov 26, 2025Grant Deed, Transfer · Conventional Mortgage
TRAVIS CU
Dec 05, 2022Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleNov 26, 2025 · Amount on Record
Deed SaleNov 26, 2025 · Amount on Record
Deed Document Number202530642
Prior Transfer DateMay 31, 2024
Prior Transfer Doc0000016336
Record UpdatedSep 20, 2026

November 2025: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionMARIN CA
Recording DateNov 26, 2025
Property Address647 NORTHERN AVE, MILL VALLEY, CA 94941-3990
Document Number0000030642
Map ReferenceMB 397 PG 269
Instrument DateNov 21, 2025
Instrument2025-0030642
Transaction TypeTransfer
Record UpdatedDec 11, 2025
Title CompanyFIRSTAMERICAN TITLE COMPANY, FIRST AMERICAN TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$1,540.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address647 NORTHERN AVE, MILL VALLEY, CA 94941-3990

Mortgage

Document Number0000030643
DateNov 26, 2025
Instrument2025-0030643
Lender
NameTRAVIS CU
TypeCredit Union
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueDec 01, 2055
Interest
Rate TypeAdjustable Rate
Rate5.25%
Type Change DateDec 01, 2032
Change Frequency6 Months
Min Rate At Change3.25%
Max Rate At Change7.25%
IndexSOFR Average 30-Day
Max Rate10.2%

December 2022: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionMARIN CA
Recording DateDec 05, 2022
Property Address647 NORTHERN AVE, MILL VALLEY, CA 94941-3990
Document Number0000039363
Map ReferenceVOL 2 PG 85
Instrument DateDec 03, 2022
Instrument2022-0039363
Transaction TypeTransfer
Record UpdatedJun 07, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address647 NORTHERN AVE, MILL VALLEY, CA 94941-3990
InvestorPossibly a Property Investor

Tax Assessment & Valuation

Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified August 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 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 Value
2026$1,400,000 (+798.91%) Land $950,000 Building $450,000
2025$5,301.00 (+1.38%)$155,745 (+4.04%) Land $54,993 Building $100,752
2023$5,229.00 (+10.78%) Homeowner's exemption$149,699 Land $52,858 Building $96,841
2022$4,720.00

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 54% of the US · lower than 68% of California
Wildfire Likelihood0.1% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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

5G (outdoors only) and 4G LTE

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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