3 Hart Ln, Mill Valley, CA 94941 Property Records

Marin County property record for 3 Hart Ln, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	4 bd · 5 ba · 4,141 sqft · built 1909
Lot Size	1.03 acres (44,958 sqft)
Owner	2 Individual Names on File
Last Sale	$2,050,000 (Jan 2018)
Tax Bill	$31,332 (2025)
Deeds & Mortgages	Oct 2026 Mortgage Jan 2018 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`047-048-07`

Property Details

APN / Parcel Number

Primary APN	`047-048-07`

Interior

Bedrooms	4 Beds
Full Baths	5 Baths
Total Rooms	11 Rooms
Building Area	4,141 sqft Living Area
Basement Area	377 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1909
Effective Year Built	Effective 1970
Architectural Style	Duplex Single
Exterior Material	Wood Shake/Shingle
Roof Material	Composition Shingle
Lot Area	44,958 sqft (1.03 acres)
Deck Area	325 sqft
Patio Area	325 sqft

Utilities, Heating & Cooling

Heating System	Central
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	3 HART LN
City	MILL VALLEY
State	CA
Zip	94941-3387
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RSP
Legal Description	L7,7-A /B20P7 M TAMALPAIS VIEW ESTA
Legal Subdivision	TAMALPAIS VIEW ESTATES
Legal Lot Number	7
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	2
Census Block	2000
Census Tract	128200

Owner

3 Hart Ln is owned and occupied by two individuals who acquired it in September 2026.

Source: Marin County records, as of October 15, 2026

Owner of Record	2 Individual Names on File
Mailing Address	3 HART LN, MILL VALLEY, CA 94941-3387
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Husband and Wife

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Oct 7, 2026	Grant Deed, Transfer · Conventional Mortgage SUN WEST MORTGAGE COMPANY INC
Jan 23, 2018	Grant Deed, Transfer · Conventional Mortgage ACM INVTR SVCS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 23, 2018 · Amount on File
Deed Sale	Jan 23, 2018 · Amount on File
Deed Document Number	20182029
Last Transfer Date	Sep 30, 2026
Transfer Doc	0000028735
Record Updated	Oct 29, 2026

October 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Oct 7, 2026
Property Address	3 HART LN, MILL VALLEY, CA 94941-3387
Document Number	0000028735
Instrument Date	Sep 30, 2026
Instrument	202628735
Transaction Type	Transfer
Record Updated	Oct 14, 2026
Title Company	COAST TITLE, ORANGE COAST TITLE

Transaction

Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Intrafamily Transfer Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3 HART LN, MILL VALLEY, CA 94941-3387

Mortgage

Document Number	0000028736,
Date	Oct 7, 2026
Instrument	202628736

Lender

Name	SUN WEST MORTGAGE COMPANY INC

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Oct 1, 2056

Interest

Rate Type	Fixed Rate
Initial Type	Fixed Rate
Max Rate	-1%

January 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Jan 23, 2018
Property Address	3 HART LN, MILL VALLEY, CA 94941-3387
Document Number	0000002029
Instrument Date	Dec 1, 2017
Instrument	2029
Transaction Type	Transfer
Record Updated	Feb 14, 2018
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,255.00
Amount Accuracy	Full Value
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	1334 45TH AVE SAN FRANCISCO CA 941221109, SAN FRANCISCO, CA 94122-1109

Mortgage

Document Number	2030
Date	Jan 23, 2018
Instrument	2030

Lender

Name	ACM INVTR SVCS
Type	MERS
Address	LARKSPUR, CA 94939

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jan 22, 2048

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 3 Hart Ln was $31,332.

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

Property Jurisdictions

Type	Name
State	California
County	Marin County
Elementary School District	Mill Valley Elementary School District (KG - 08)
Secondary School District	Tamalpais Union High School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$2,263,092 (+2%) Land $1,305,630 Building $957,462
2025	$31,332.00	$2,218,729 Land $1,280,036 Building $938,693
2023	$29,673.00 (+4.01%)	$2,132,577 Land $1,230,333 Building $902,244
2022	$28,529.00

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

Flood

FEMA maps place 3 Hart Ln in Zone X, an area of minimal flood risk, though there have been 9 flood claims nearby since 1982.

Source: FEMA National Flood Hazard Layer, effective October 18, 2023 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 17 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	17 in force
Nearby Flood Claims	9 (1982–2017)
Claims Outside the SFHA	7 of 9
Most Recent Claim	Jan 2017 · Severe Winter Storms, Flooding, And Mudslides
Claims by Event	Severe Winter Storms And Flooding, Feb 1998 · 2 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

Wildfire risk around 3 Hart Ln is low, with a 0.03% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 65% of the US · lower than 79% of California
Wildfire Likelihood	0.03% annual chance
Exposure	Direct burnable vegetation

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 System	MARIN MUNICIPAL WATER DISTRICT serves 188,116 people · EPA ID CA2110002
Water Source	Surface water
Last State Inspection	Aug 2023
Lead	Under 1 ppb (2019–2021) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 351 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250

May also be available: T-Mobile, Unwired, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Hart Ln

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