161 Prospect Ave, San Anselmo, CA 94960 Property Records

Marin County property record for 161 Prospect Ave, San Anselmo, CA 94960

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.5 ba · 3,267 sqft · built 1980
Lot Size	0.31 acres (13,500 sqft)
Owner	2 Company Names on Record
Last Sale	$3,310,000 (May 2021)
Tax Bill	$45,620 (2025)
Deeds & Mortgages	Sep 2025 Transfer Oct 2022 Line of Credit + 1 more
Flood Zone	Zone X (minimal risk)
APN	`006-231-35`

Property Details

APN / Parcel Number

Primary APN	`006-231-35`

Interior

Bedrooms	4 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	3,267 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1980
Effective Year Built	Effective 1985
Architectural Style	Contemporary
Exterior Material	Wood Shingle
Roof Material	Wood Shingle
Lot Area	13,500 sqft (0.31 acres)
Garage Area	432 sqft
Parking Spaces	2 Parking Spaces
Pool Area	576 sqft
Deck Area	988 sqft
Patio Area	988 sqft

Utilities, Heating & Cooling

Heating System	Central
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	161 PROSPECT AVE
City	SAN ANSELMO
State	CA
Zip	94960-2520
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	MAP C1 586
Legal Subdivision	LANDS/SISTERS/HOLY FAMILY
Legal Lot Number	1
Jurisdiction	MARIN CA
Township / Civil Division	ROSS VALLEY
Census Block Group	2
Census Block	2004
Census Tract	117000

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 Company Names on Record
Mailing Address	161 PROSPECT AVE, SAN ANSELMO, CA 94960-2520
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Family Trust

Deeds, Mortgages & Sale History

Date	Document
Sep 30, 2025	Intrafamily Transfer, Transfer
Oct 26, 2022	Deed of Trust, Mortgage · Line of Credit USALLIANCE FCU
May 13, 2021	Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 13, 2021 · Amount on Record
Deed Sale	May 13, 2021 · Amount on Record
Prior Sale	Mar 15, 2013 · Amount on Record
Deed Document Number	202132221
Last Transfer Date	Sep 29, 2025
Transfer Doc	0000025097
Record Updated	Oct 29, 2026

September 2025: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Sep 30, 2025
Property Address	161 PROSPECT AVE, SAN ANSELMO, CA 94960-2520
Document Number	0000025097
Map Reference	MB 15 PG 37
Instrument Date	Sep 29, 2025
Instrument	2025-0025097
Transaction Type	Transfer
Record Updated	Oct 15, 2025

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Family Trust
Address	161 PROSPECT AVE, SAN ANSELMO, CA 94960-2520

October 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	161 PROSPECT AVE, SAN ANSELMO, CA 94960-2520
Transaction Type	Mortgage
Record Updated	Nov 9, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	161 PROSPECT AVE, SAN ANSELMO, CA 94960-2520

Mortgage

Document Number	0000036124
Date	Oct 26, 2022
Instrument	2022-0036124

Lender

Name	USALLIANCE FCU
Type	Credit Union
Address	CHELMSFORD, MA 01824

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	359 Months
Due	Sep 25, 2052

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

May 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	May 13, 2021
Property Address	161 PROSPECT AVE, SAN ANSELMO, CA 94960-2520
Document Number	0000032221
Map Reference	MB 15 PG 37
Instrument Date	May 6, 2021
Instrument	2021-0032221
Transaction Type	Transfer
Record Updated	May 31, 2021
Title Company	CAL LAND TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,641.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	161 PROSPECT AVE, SAN ANSELMO, CA 94960-2520

Mortgage

Document Number	0000032222
Date	May 13, 2021
Instrument	2021-0032222

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jun 1, 2051

Tax Assessment & Valuation

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

Property Jurisdictions

Type	Name
State	California
County	Marin County
Municipality	San Anselmo Town
Elementary School District	Ross 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		$3,720,738 (+3.13%) Land $2,208,120 Building $1,512,618
2025	$45,620.00 (+4.76%)	$3,607,810 (+4.76%) Land $2,164,840 Building $1,442,970
2023	$43,548.00 (+0.7%)	$3,443,724 Land $2,080,800 Building $1,362,924
2022	$43,247.00

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
Flood Insurance Cost	Premium on Record median of 28 policies
Community Rating System	Class 8 (10% premium discount)
Nearby Flood Policies	28 in force
Nearby Flood Claims	45 (1980–2019)
Claims Outside the SFHA	11 of 45
Most Recent Claim	Mar 2019 · river or lake flooding
Claims by Event	Severe Winter Storms, Flooding, Landslides, And Mudslides, Feb 2019 · 2 claims Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 23 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 8 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

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

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond ember reach

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 626 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
AT&T DSL · Fiber, Fixed Wireless in parts of the area	100 / 20

May also be available: Unwired.

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