20 Nelson Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 20 Nelson Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,325 sqft · built 1943
Lot Size	0.115 acres (5,000 sqft)
Owner	2 Company Names on File
Last Sale	$1,050,000 (Jul 2012)
Tax Bill	$20,761 (2025)
Deeds & Mortgages	Feb 2023 Transfer Apr 2021 Mortgage + 3 more
Flood Zone	Zone X (minimal risk)
APN	`030-062-05`

Property Details

APN / Parcel Number

Primary APN	`030-062-05`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,325 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1943
Effective Year Built	Effective 1990
Architectural Style	Contemporary
Lot Area	5,000 sqft (0.115 acres)
Garage Area	288 sqft
Deck Area	375 sqft
Patio Area	423 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	20 NELSON AVE
City	MILL VALLEY
State	CA
Zip	94941-2120
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP 5 PG 87 LOT 5
Legal Subdivision	VALLEY VILLAGE
Legal Lot Number	5
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	2
Census Block	2000
Census Tract	126100

Owner

Source: Marin County assessment roll, 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 File
Mailing Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Borrower in Default

Deeds, Mortgages & Sale History

Date	Document
Feb 2, 2023	Intrafamily Transfer, Transfer
Apr 20, 2021	Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK
Sep 22, 2017	Intrafamily Transfer, Transfer · Conventional Mortgage FIRST REPUBLIC BANK
Aug 28, 2017	Quit Claim Deed, Transfer Quitclaim
Jun 28, 2017	Quit Claim Deed, Transfer Quitclaim

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Jul 26, 2012 · Amount on Record
Deed Sale	Jul 26, 2012 · Amount on Record
Deed Document Number	201245189
Record Updated	Sep 20, 2026

February 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Feb 2, 2023
Property Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120
Document Number	0000001949
Map Reference	VOL 5 PG 87
Instrument Date	Jan 19, 2023
Instrument	2023-0001949
Transaction Type	Transfer
Record Updated	Jun 7, 2023

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	Revocable Trust
Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120
Transaction Type	Mortgage
Record Updated	May 5, 2021
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120

Mortgage

Document Number	0000026444
Date	Apr 20, 2021
Instrument	2021-0026444

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

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

September 2017: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	MARIN CA
Recording Date	Sep 22, 2017
Property Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120
Document Number	0000037894
Map Reference	VOL5 PG87
Instrument Date	Sep 16, 2017
Instrument	2017-0037894
Transaction Type	Transfer
Record Updated	Aug 13, 2021
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	20 NESON AVE, MILL VALLEY, CA 94941-2120

Mortgage

Document Number	0000037895
Date	Sep 22, 2017
Instrument	2017-0037895

Lender

Name	FIRST REPUBLIC BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Oct 1, 2047

August 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Aug 28, 2017
Property Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120
Document Number	0000034287
Instrument Date	Aug 25, 2017
Instrument	34287
Transaction Type	Transfer
Record Updated	Sep 5, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	20 NELSON AVE MILL VALLEY CA 949412120, MILL VALLEY, CA 94941-2120

June 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Jun 28, 2017
Property Address	20 NELSON AVE, MILL VALLEY, CA 94941-2120
Document Number	0000025892
Instrument Date	Jun 28, 2017
Instrument	25892
Transaction Type	Transfer
Record Updated	Sep 29, 2017

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	20 NELSON AVE MILL VALLEY CA 949412120, MILL VALLEY, CA 94941-2120

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		$1,521,397 (+2%) Land $815,585 Building $705,812
2025	$20,761.00 (+7.26%) Homeowner's exemption	$1,491,574 (+6.4%) Land $799,598 Building $691,976
2023	$19,355.00 (-2.7%) Homeowner's exemption	$1,401,807 Land $739,731 Building $662,076
2022	$19,892.00

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 123 individual policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	147 units insured incl. 24 condo units
Nearby Flood Claims	81 (1979–2026)
Claims Outside the SFHA	8 of 81
Most Recent Claim	Apr 2026 · rainfall accumulation
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Jan 2006 · 33 claims Coastal Storms, Floods, Slides & Tornadoes, Jan 1983 · 3 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 15 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	Indirect within ember reach

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

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20

May also be available: Etheric Communications, LLC., T-Mobile USA.

Nearby Properties on Nelson Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures