484 Summit Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 484 Summit Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,246 sqft · built 1911
Lot Size	0.232 acres (10,120 sqft)
Owner	2 Individual Names on File
Last Sale	$2,180,000 (Mar 2026)
Tax Bill	$10,773 (2025)
Deeds & Mortgages	Mar 2026 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`027-113-05`

Property Details

APN / Parcel Number

Primary APN	`027-113-05`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Building Area	1,246 sqft Living Area
Basement Area	140 sqft

Exterior

Year Built	Built 1911
Effective Year Built	Effective 1972
Architectural Style	Contemporary
Lot Area	10,120 sqft (0.232 acres)
Garage Area	219 sqft
Deck Area	200 sqft
Patio Area	200 sqft

Utilities, Heating & Cooling

Heating System	Floor/Wall Furnace

Location & Zoning

Street Address	484 SUMMIT AVE
City	MILL VALLEY
State	CA
Zip	94941-4518
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT D
Legal Subdivision	TAMALPALS LAND & WATER CO
Legal Lot Number	D
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	5
Census Block	5000
Census Tract	127000

Owner

Source: Marin County records · APN 027-113-05

Assessment roll updated July 13, 2026 · Last verified July 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 File
Mailing Address	484 SUMMIT AVE, MILL VALLEY, CA 94941-4518
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Mar 27, 2026 · Amount on Record
Deed Sale	Mar 27, 2026 · Amount on Record
Prior Sale	Nov 22, 2016
Deed Document Number	20269083
Prior Transfer Date	Dec 10, 2012
Prior Transfer Doc	0000080082
Record Updated	Sep 20, 2026

March 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Mar 27, 2026
Property Address	484 SUMMIT AVE, MILL VALLEY, CA 94941-4518
Document Number	0000009083
Instrument Date	Mar 17, 2026
Instrument	2026-0009083
Transaction Type	Transfer
Record Updated	Apr 08, 2026
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$2,398.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	484 SUMMIT AVE, MILL VALLEY, CA 94941-4518

Mortgage

Document Number	0000009084
Date	Mar 27, 2026
Instrument	2026-0009084

Lender

Name	UNITED AMERICAN MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Apr 01, 2056

Interest

Rate Type	Adjustable Rate
Rate	5.87%
Type Change Date	Apr 01, 2031
Change Frequency	5 Years
Min Rate At Change	3.87%
Max Rate At Change	7.87%
Index	5-Year CMT
Max Rate	10.8%

Tax Assessment & Valuation

Source: Marin County records · Assessment roll updated July 13, 2026 · Last verified July 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

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value
2026		$658,871 (+2%) Land $160,239 Building $498,632
2025	$10,773.00 (+4.34%) Homeowner's exemption	$645,953 (+4.04%) Land $157,097 Building $488,856
2023	$10,325.00 (+1.65%) Homeowner's exemption	$620,875 Land $150,998 Building $469,877
2022	$10,157.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 18, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 14 policies
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	14 in force
Nearby Flood Claims	11 (1983–2017)
Claims Outside the SFHA	4 of 11
Most Recent Claim	Mar 2017 · river or lake flooding
Claims by Event	Severe Storms, Flooding, Mudslides, And Landslides, Dec 2005 · 3 claims

Wildfire

Wildfire Risk	Moderate above 40% of the US · lower than 76% of California
Wildfire Likelihood	0.06% annual chance
Exposure	Direct burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

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

Based on FCC filings for 313 locations within half a mile of this property.

Cell Coverage

5G (outdoors only) and 4G LTE

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	MARIN MUNICIPAL WATER DISTRICT serves 188,116 people
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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.