512 Hillside Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 512 Hillside Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	5 bd · 5 ba · 3,345 sqft · built 1930
Lot Size	0.201 acres (8,750 sqft)
Owner	2 Company Names on Record
Last Sale	$2,925,000 (Oct 2018)
Tax Bill	$43,292 (2025)
Deeds & Mortgages	Dec 2018 Mortgage Oct 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`029-085-04`

Property Details

APN / Parcel Number

Primary APN	`029-085-04`

Interior

Bedrooms	5 Beds
Full Baths	5 Baths
Building Area	3,345 sqft Living Area
Basement Area	532 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1930
Effective Year Built	Effective 2001
Architectural Style	Contemporary
Lot Area	8,750 sqft (0.201 acres)
Garage Area	440 sqft
Parking Spaces	2 Parking Spaces
Deck Area	1,109 sqft
Patio Area	1,109 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	512 HILLSIDE AVE
City	MILL VALLEY
State	CA
Zip	94941-1159
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	L34 /B5P8 OR BOLSA VALLEY MAP #2
Legal Subdivision	BOLSA VLY MAP 02
Legal Tract	2
Legal Lot Number	34
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	4
Census Block	4000
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 Company Names on Record
Mailing Address	512 HILLSIDE AVE, MILL VALLEY, CA 94941-1159
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

Deeds, Mortgages & Sale History

Date	Document
Dec 19, 2018	Deed of Trust, Mortgage · ARM FIRST REPUBLIC BANK
Oct 13, 2020	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Oct 26, 2018	Grant Deed, Transfer FIRST AMERICAN TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 26, 2018 · Amount on Record
Deed Sale	Oct 26, 2018 · Amount on Record
Prior Sale	Feb 25, 2010 · Amount on Record
Deed Document Number	201837198
Prior Transfer Date	Apr 18, 2016
Prior Transfer Doc	0000019159
Record Updated	Oct 29, 2026

December 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	512 HILLSIDE AVE, MILL VALLEY, CA 94941-1159
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIRST AMERICAN TITLE CO OF M

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000043102
Date	Dec 19, 2018
Instrument	2018-0043102

Lender

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

Agreement

Type	ARM
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	4%
Type Change Date	Jan 1, 2029
Change Frequency	Monthly
Min Rate At Change	2.65%
Index	1-Month LIBOR
Max Rate	10.9%

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	512 HILLSIDE AVE, MILL VALLEY, CA 94941-1159
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	512 HILLSIDE AVE, MILL VALLEY, CA 94941-1159

Mortgage

Document Number	0000049262
Date	Oct 13, 2020
Instrument	2020-0049262

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	ABERDEEN, SD 57401

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	2.87%
Type Change Date	Nov 1, 2030
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	4.87%
Index	1-Year LIBOR
Max Rate	7.87%

October 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Oct 26, 2018
Property Address	512 HILLSIDE AVE, MILL VALLEY, CA 94941-1159
Document Number	0000037198
Instrument Date	Oct 22, 2018
Instrument	37198
Transaction Type	Transfer
Record Updated	Nov 8, 2018
Title Company	FIRST AMERICAN TITLE

Transaction

Amount	Amount Recorded
Tax	$3,217.50
Amount Accuracy	Full Value
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	512 HILLSIDE AVE MILL VALLEY CA 949411159, MILL VALLEY, CA 94941-1159

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		$3,350,292 (+2%) Land $1,490,531 Building $1,859,761
2025	$43,292.00 (+8.4%) Homeowner's exemption	$3,284,600 (+4.04%) Land $1,461,305 Building $1,823,295
2023	$39,938.00 (+4.43%) Homeowner's exemption	$3,157,072 Land $1,404,568 Building $1,752,504
2022	$38,244.00

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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