300 Hillside Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 300 Hillside Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,941 sqft · built 1965
Lot Size	0.121 acres (5,250 sqft)
Owner	2 Company Names on Record
Last Sale	$2,000,000 (Jul 2025)
Tax Bill	$15,557 (2025)
Deeds & Mortgages	May 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`029-072-07`

Property Details

APN / Parcel Number

Primary APN	`029-072-07`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Building Area	1,941 sqft Living Area
Basement Area	171 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1990
Architectural Style	Contemporary
Lot Area	5,250 sqft (0.121 acres)
Garage Area	400 sqft
Parking Spaces	2 Parking Spaces
Deck Area	836 sqft
Patio Area	836 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	300 HILLSIDE AVE
City	MILL VALLEY
State	CA
Zip	94941-1107
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP D2 606
Legal Subdivision	SUNNY HEIGHTS ADD/EASTLAND
Legal Lot Number	21
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	300 HILLSIDE AVE, MILL VALLEY, CA 94941-1107
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 17, 2025 · Amount on Record
Deed Sale	Jul 17, 2025 · Amount on Record
Prior Sale	Nov 16, 2012 · Amount on Record
Deed Document Number	202518900
Prior Transfer Date	Apr 2, 1997
Prior Transfer Doc	0000020451
Record Updated	Oct 29, 2026

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	300 HILLSIDE AVE, MILL VALLEY, CA 94941-1107
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	MORTGAGE CONNECT

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000018258
Date	May 11, 2020
Instrument	2020-0018258

Lender

Name	MORGAN STANLEY PRIVATE BANK NA
Type	Bank
Address	CINCINNATI, OH 45245

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	2.82%
Type Change Date	Jun 1, 2030
Change Frequency	Annually
Min Rate At Change	2.5%
Max Rate At Change	7.82%
Index	1-Year LIBOR
Max Rate	7.82%

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		$2,000,000 (+88.92%) Land $1,200,000 Building $800,000
2025	$15,557.00 (+4.82%)	$1,058,651 (+4.04%) Land $523,336 Building $535,315
2023	$14,841.00 (+3.82%)	$1,017,548 Land $503,017 Building $514,531
2022	$14,295.00

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

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

May also be available: T-Mobile, Unwired.

Cell Coverage

5G (outdoors only) and 4G LTE

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