51 Walnut Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 51 Walnut Ave, Mill Valley, CA 94941 · Last verified July 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	4 Beds
Bathrooms	3.5 Baths
Year Built	Built 2014
Square Footage	2,718 sqft Living Area
Lot Size	8,000 sqft (0.184 acres)
Occupancy	Owner Occupied
Last Sale	$6,300,000 (2025)
Tax Bill	$45,527.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`028-233-27`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Partial Baths	1 Partial Baths
Building Area	2,718 sqft Living Area
Basement Area	116 sqft Basement
Fireplace	Fireplace
Fireplaces	1 Fireplaces

Exterior

Year Built	Built 2014
Effective Year Built	Effective 2014
Architectural Style	Contemporary Style
Lot Area	8,000 sqft (0.184 acres)
Parking Spaces	1 Parking Spaces
Garage Area	398 sqft Garage
Deck Area	654 sqft Deck
Patio Area	654 sqft Patio

Utilities and HVAC

Heating System	Central Heating

Location & Zoning

Street Address	51 WALNUT AVE
City	MILL VALLEY
State	CA
Zip	94941-2822
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	MAP 2 PG 55 LOT 247
Legal Subdivision	TAMALPAIS PARK MILL VLY
Legal Lot Number	247
Jurisdiction	MARIN CA
Minor Civil Division	SOUTHEAST MARIN
Census Blockgroup	3
Census Block	3002
Census Tract	126100

Owner

Source: Marin County records · APN 028-233-27

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 Record	2 Individual Names on File
Mailing Address	51 WALNUT AVE, MILL VALLEY, CA 94941-2822
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Community Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Aug 15, 2025 · Amount on Record
Deed Sale	Aug 15, 2025 · Amount on Record
Prior Sale	Apr 02, 2014 · Amount on Record
Deed Doc Number	202521426
Record Refreshed	Sep 20, 2026

August 2025: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Aug 15, 2025
Property Address	51 WALNUT AVE, MILL VALLEY, CA 94941-2822
Document Number	0000021426
Map Reference	MB 2 PG 55
Instrument Date	Aug 12, 2025
Instrument	2025-0021426
Transaction Type	Transfer
Record Updated	Oct 30, 2025
Title Company	TWFG NATIONAL TITLE INSURANCE COMPANY, WFG NATL TITLE INS COMPANY

Transaction

Amount	Amount Recorded
Loan-to-Value (LTV)	LTV on Record
Tax	$6,930.00
Amount Accuracy	Rounded Values by County
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property (Marital Community) with Rights of Survivorship
Address	51 WALNUT AVE, MILL VALLEY, CA 94941-2822

Mortgage

Document Number	0000026323
Date	Aug 15, 2025
Instrument	2025-0026323

Lender

Name	THIRY OLEARY LIVING TRUST
Type	Private Party

Agreement

Type	Commercial Mortgage
Amount	Amount Recorded

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Marin County
Municipality	Mill Valley City
Elementary School District	Mill Valley Elementary School District (KG - 08)
Secondary School District	Tamalpais 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.

Year	Tax Bill	Assessed Value
2026		$6,300,000 (+75.61%) Land $3,775,000 Building $2,525,000
2025	$45,527.00 (+5.98%)	$3,587,487 (+4.04%) Land $1,225,810 Building $2,361,677
2023	$42,960.00 (+5.37%)	$3,448,209 Land $1,178,220 Building $2,269,989
2022	$40,769.00

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 Zone	Zone AE
Flood Hazard	High
100-Year Floodplain	Yes 1% annual chance
Special Flood Hazard Area	Yes
Flood Insurance Requirement	Required (federally backed mortgages)
Floodway	No
Base Flood Elevation	Varies along the reach; see FIRM

Wildfire

Wildfire Risk	Low above 20% of the US · above 11% of California
Wildfire Likelihood	About 1 in 10,000 per year
Exposure	Indirect within ember reach

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