12 Hillside Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 12 Hillside Ave, Mill Valley, CA 94941 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details5 bd · 4 ba · 4,863 sqft · built 1918
Lot Size0.225 acres (9,800 sqft)
OwnerCompany Name on File
Last Sale$12,250,000 (Jul 2026)
Tax Bill$28,576 (2025)
Deeds & MortgagesJul 2026 Sale & Mortgage
Mar 2023 Line of Credit
+ 1 more
Flood ZoneZone X (minimal risk)
APN029-102-01

Property Details

APN / Parcel Number

Primary APN029-102-01

Interior

Bedrooms5 Beds
Full Baths4 Baths
Total Rooms10 Rooms
Building Area4,863 sqft Living Area
Basement Area546 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1918
Effective Year BuiltEffective 1987
Architectural StyleContemporary
Lot Area9,800 sqft (0.225 acres)
Garage Area399 sqft
Parking Spaces1 Parking Space
Deck Area445 sqft
Patio Area445 sqft

Utilities, Heating & Cooling

Heating SystemCentral

Location & Zoning

Street Address12 HILLSIDE AVE
CityMILL VALLEY
StateCA
Zip94941-1104
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 1
Legal Lot Number1
JurisdictionMARIN CA
Township / Civil DivisionSOUTHEAST MARIN
Census Block Group4
Census Block4001
Census Tract126100

Owner

Source: Marin County records · APN 029-102-01

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 RecordCompany Name on File
Mailing Address35 MILLER AVE, MILL VALLEY, CA 94941-1903
OccupancyOwner Occupied
Owner TypeCompany
VestingLimited Liability Partnership

Deeds, Mortgages & Sale History

DateDocument
Jul 10, 2026Grant Deed, Transfer · Conventional Mortgage
JPMORGAN CHASE BANK
Mar 03, 2023Intrafamily Transfer, Transfer · Line of Credit
BANK OF MARIN
Jan 24, 2023Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed NamesVerified Name on Deed
Last SaleJul 10, 2026 · Amount on Record
Deed SaleJul 10, 2026 · Amount on Record
Prior SaleAug 29, 1997 · Amount on Record
Deed Document Number202619914
Prior Transfer DateFeb 09, 2023
Prior Transfer Doc0000004376
Record UpdatedSep 20, 2026

July 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionMARIN CA
Recording DateJul 10, 2026
Property Address12 HILLSIDE AVE, MILL VALLEY, CA 94941-1104
Document Number0000019914
Instrument DateJul 02, 2026
Instrument202619914
Transaction TypeTransfer
Record UpdatedJul 20, 2026
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPAN

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$1,360,975.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLimited Liability Partnership

Mortgage

Document Number0000019915,
DateJul 10, 2026
Instrument202619915
Lender
NameJPMORGAN CHASE BANK
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueAug 01, 2056
Interest
Rate TypeAdjustable Rate
Rate5.38%
Initial TypeAdjustable Rate
AdjustableAdjustable Rate Rider
Max Rate-1%

March 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionMARIN CA
Recording DateMar 03, 2023
Property Address12 HILLSIDE AVE, MILL VALLEY, CA 94941-1104
Document Number0000004376
Map ReferenceVOL 1 PG 85
Instrument DateFeb 09, 2023
Instrument2023-0004376
Transaction TypeTransfer
Record UpdatedMar 16, 2023
Title CompanyFIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address12 HILLSIDE AVE, MILL VALLEY, CA 94941-1104

Mortgage

Document Number0000004377
DateMar 03, 2023
Instrument2023-0004377
Lender
NameBANK OF MARIN
TypeBank
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

January 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionMARIN CA
Recording DateJan 24, 2023
Property Address12 HILLSIDE AVE, MILL VALLEY, CA 94941-1104
Document Number0000001276
Map ReferenceVOL 1 PG 85
Instrument DateJan 24, 2023
Instrument2023-0001276
Transaction TypeTransfer
Record UpdatedFeb 08, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address70 WOODBINE DR, MILL VALLEY, CA 94941-1145

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyMarin County
MunicipalityMill Valley City
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$2,422,729 (+2%) Land $814,290 Building $1,608,439
2025$28,576.00 (+3.8%) Homeowner's exemption$2,375,229 (+4.04%) Land $798,325 Building $1,576,904
2023$27,530.00 (+1.7%) Homeowner's exemption$2,283,011 Land $767,330 Building $1,515,681
2022$27,070.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Marin County (06041C), updated October 18, 2023 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Flood HazardMinimal
500-Year FloodplainNo
Special Flood Hazard AreaNo
Nearest Special Flood Hazard AreaZone AE, within 500 ft

Wildfire

Wildfire RiskLow
above 20% of the US · above 11% of California
Wildfire LikelihoodAbout 1 in 4,348 per year
ExposureDirect
burnable vegetation at the parcel

Values are read at the parcel center point; lenders make the official flood determination.

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