19 Byron Cir, Mill Valley, CA 94941 Property Records

Marin County property record for 19 Byron Cir, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,374 sqft · built 1975
Lot Size	0.028 acres (1,200 sqft)
Owner	2 Individual Names on Record
Last Sale	$915,000 (Jun 2025)
Tax Bill	$5,168 (2025)
Deeds & Mortgages	Oct 2017 Transfer Oct 2017 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`030-311-25`

Property Details

APN / Parcel Number

Primary APN	`030-311-25`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Building Area	1,374 sqft Living Area
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1975
Effective Year Built	Effective 1975
Architectural Style	Colonial
Lot Area	1,200 sqft (0.028 acres)
Deck Area	99 sqft
Patio Area	99 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	19 BYRON CIR
City	MILL VALLEY
State	CA
Zip	94941-4627
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	MAP 15 PG 81 LOT 156
Legal Subdivision	SHELTER RDG UN 3
Legal Tract	3
Legal Lot Number	156
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	3
Census Block	3005
Census Tract	126200

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 Individual Names on Record
Mailing Address	19 BYRON CIR, MILL VALLEY, CA 94941-4627
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

Deeds, Mortgages & Sale History

Date	Document
Oct 11, 2017	Affidavit of Death, Transfer ATTORNEY ONLY
Oct 11, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY
Oct 11, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 2, 2025 · Amount on Record
Deed Sale	Jun 2, 2025 · Amount on Record
Deed Document Number	202514843
Prior Transfer Date	Sep 7, 2017
Prior Transfer Doc	0000040284
Record Updated	Oct 29, 2026

October 2017: Affidavit of Death, Transfer

Document Type	Affidavit of Death
Jurisdiction	MARIN CA
Recording Date	Oct 11, 2017
Property Address	19 BYRON CIR, MILL VALLEY, CA 94941-4627
Document Number	0000040283
Instrument Date	Sep 7, 2017
Instrument	40283
Transaction Type	Transfer
Record Updated	Jan 3, 2018
Title Company	ATTORNEY ONLY

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	150 SEMINARY DR #3E MILL VALLEY CA 949413194, 3E, MILL VALLEY, CA 94941-3194

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Oct 11, 2017
Property Address	19 BYRON CIR, MILL VALLEY, CA 94941-4627
Document Number	0000040284
Instrument Date	Sep 7, 2017
Instrument	40284
Transaction Type	Transfer
Record Updated	Oct 25, 2017
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	150 SEMINARY DR #3E MILL VALLEY CA 949413194, 3E, MILL VALLEY, CA 94941-3194

October 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Oct 11, 2017
Property Address	19 BYRON CIR, MILL VALLEY, CA 94941-4627
Document Number	0000040285
Instrument Date	Sep 7, 2017
Instrument	40285
Transaction Type	Transfer
Record Updated	Jan 3, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	150 SEMINARY DR #3E MILL VALLEY CA 949413194, 3E, MILL VALLEY, CA 94941-3194

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		$933,300 (+577.08%) Land $382,500 Building $550,800
2025	$5,168.00 (+1.12%)	$137,841 (+4.04%) Land $46,681 Building $91,160
2023	$5,111.00 (+8.28%)	$132,489 Land $44,869 Building $87,620
2022	$4,720.00

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.

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	1 in force
Nearby Flood Claims	18 (1980–2005)
Claims Outside the SFHA	2 of 18
Most Recent Claim	Dec 2005 · Severe Storms, Flooding, Mudslides, And Landslides
Claims by Event	Coastal Storms, Floods, Slides & Tornadoes, Jan 1983 · 3 claims Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 4 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 473 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20

May also be available: AT&T, Etheric Networks, T-Mobile.

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