171 Bolsa Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 171 Bolsa Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 2,074 sqft · built 1998
Lot Size	0.144 acres (6,250 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,855,000 (Sep 2007)
Tax Bill	$31,688 (2025)
Deeds & Mortgages	Jun 2023 Line of Credit Dec 2021 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`029-113-25`

Property Details

APN / Parcel Number

Primary APN	`029-113-25`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Building Area	2,074 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1998
Effective Year Built	Effective 1999
Architectural Style	Contemporary
Lot Area	6,250 sqft (0.144 acres)
Garage Area	476 sqft
Parking Spaces	2 Parking Spaces
Deck Area	418 sqft
Patio Area	418 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	171 BOLSA AVE
City	MILL VALLEY
State	CA
Zip	94941-1101
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP 1 BOLSA VALLEY TR LOT 000060 MAP 000003 00051
Legal Subdivision	BOLSA VLY MAP 01
Legal Lot Number	60
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	4
Census Block	4001
Census Tract	126100

Owner

Source: Marin County records, as of July 13, 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 Record
Mailing Address	171 BOLSA AVE, MILL VALLEY, CA 94941-1101
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Jun 29, 2023	Deed of Trust, Mortgage · Line of Credit BANK OF AMERICA NA
Dec 29, 2021	Deed of Trust, Mortgage · Conventional Mortgage MUFG UNION BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Sep 13, 2007 · Amount on Record
Deed Sale	Sep 13, 2007 · Amount on Record
Prior Sale	Sep 3, 2004 · Amount on Record
Deed Document Number	200754791
Record Updated	Sep 20, 2026

June 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	171 BOLSA AVE, MILL VALLEY, CA 94941-1101
Transaction Type	Mortgage
Record Updated	Jul 14, 2023
Title Company	WFG LENDER SERVICES

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	171 EOLSA AVE, MILL VALLEY, CA 94941

Mortgage

Document Number	0000016360
Date	Jun 29, 2023
Instrument	2023-0016360

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

December 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	171 BOLSA AVE, MILL VALLEY, CA 94941-1101
Transaction Type	Mortgage
Record Updated	Jan 11, 2022
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	171 BOLSA AVE, MILL VALLEY, CA 94941-1101

Mortgage

Document Number	0000075269
Date	Dec 29, 2021
Instrument	2021-0075269

Lender

Name	MUFG UNION BANK NA
Type	Bank
Address	SAN DIEGO, CA 92121

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	481 Months
Due	Jan 1, 2062

Interest

Rate Type	Adjustable Rate
Rate	3%
Type Change Date	Jan 1, 2032
Change Frequency	6 Months
Min Rate At Change	2.75%
Max Rate At Change	5%
Index	Other
Max Rate	9%

Tax Assessment & Valuation

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

Year	Tax Bill	Assessed Value
2026		$2,483,115 (+2%) Land $1,473,659 Building $1,009,456
2025	$31,688.00 (+5.34%)	$2,434,442 (+4.04%) Land $1,444,773 Building $989,669
2023	$30,083.00 (+2.76%)	$2,339,932 Land $1,388,684 Building $951,248
2022	$29,275.00

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

Flood

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
Nearby Flood Policies	6 in force
Nearby Flood Claims	5 (1982–2009)
Claims Outside the SFHA	4 of 5
Most Recent Claim	Oct 2009 · other causes

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

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

Wildfire Risk	Low lower than 67% of the US · lower than 81% 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 301 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25

May also be available: T-Mobile, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

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