523 Brookline Ave, Mill Valley, CA 94941 Property Records

Marin County property record for 523 Brookline Ave, Mill Valley, CA 94941

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.5 ba · 2,225 sqft · built 1957
Lot Size	0.292 acres (12,703 sqft)
Owner	2 Trust Names on File
Last Sale	$1,600,000 (Aug 2019)
Tax Bill	$25,951 (2025)
Deeds & Mortgages	Aug 2021 Mortgage Aug 2019 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`049-083-16`

Property Details

APN / Parcel Number

Primary APN	`049-083-16`

Interior

Bedrooms	4 Beds
Full Baths	3.5 Baths
Half Baths	1 Half Bath
Building Area	2,225 sqft Living Area

Exterior

Year Built	Built 1957
Effective Year Built	Effective 2008
Lot Area	12,703 sqft (0.292 acres)
Garage Area	439 sqft
Parking Spaces	2 Parking Spaces
Deck Area	547 sqft
Patio Area	547 sqft

Utilities, Heating & Cooling

Heating System	Central

Location & Zoning

Street Address	523 BROOKLINE AVE
City	MILL VALLEY
State	CA
Zip	94941-3776
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Subdivision	TAMALPAIS VLY SUB #3
Jurisdiction	MARIN CA
Township / Civil Division	SOUTHEAST MARIN
Census Block Group	2
Census Block	2002
Census Tract	128100

Owner

523 Brookline Ave is owner-occupied and held in a trust since August 2019.

Source: Marin County records, as of July 13, 2026

Owner of Record	2 Trust Names on File
Mailing Address	523 BROOKLINE AVE, MILL VALLEY, CA 94941-3776
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Living Trust

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Aug 19, 2021	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
Aug 2, 2019	Grant Deed, Transfer · ARM FIRST REPUBLIC BANK
Sep 26, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 2, 2019 · Amount on File
Deed Sale	Aug 2, 2019 · Amount on File
Prior Sale	May 6, 2015 · Amount on File
Deed Document Number	201927524
Prior Transfer Date	Sep 9, 2017
Prior Transfer Doc	0000038267
Record Updated	Sep 20, 2026

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	MARIN CA
Property Address	523 BROOKLINE AVE, MILL VALLEY, CA 94941-3776
Transaction Type	Mortgage
Record Updated	Sep 1, 2021
Title Company	TITLE RESOURCES GUARANTY COMPANY, TITLE RESOURCES GUARANTEE CO

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	523 BROOKLINE AVE, MILL VALLEY, CA 94941-3776

Mortgage

Document Number	0000052496
Date	Aug 19, 2021
Instrument	2021-0052496

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2051

August 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	MARIN CA
Recording Date	Aug 2, 2019
Property Address	523 BROOKLINE AVE, MILL VALLEY, CA 94941-3776
Document Number	0000027524
Map Reference	MB 5 PG 6
Instrument Date	Jul 18, 2019
Instrument	2019-0027524
Transaction Type	Transfer
Record Updated	Aug 13, 2021
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	523 BROOKLINE AVE, MILL VALLEY, CA 94941-3776

Mortgage

Document Number	0000027525
Date	Aug 2, 2019
Instrument	2019-0027525

Lender

Name	FIRST REPUBLIC BANK
Type	Credit Union

Agreement

Type	ARM
Amount	Amount on Record
Term	361 Months
Due	Sep 1, 2049

Interest

Rate Type	Adjustable Rate
Rate	2.95%
Adjustable	Adjustable Rate Rider
Type Change Date	Sep 1, 2029
Change Frequency	Monthly
Index	1-Year CMT
Max Rate	10.9%

September 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	MARIN CA
Recording Date	Sep 26, 2017
Property Address	523 BROOKLINE AVE, MILL VALLEY, CA 94941-3776
Document Number	0000038267
Instrument Date	Sep 19, 2017
Instrument	38267
Transaction Type	Transfer
Record Updated	Oct 3, 2017
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Personal Trust
Address	523 BROOKLINE AVE MILL VALLEY CA 949413776, MILL VALLEY, CA 94941-3776

Tax Assessment & Valuation

The 2025 property tax bill for 523 Brookline Ave was $25,951.

Source: Marin County assessment roll, as of July 13, 2026

Property Jurisdictions

Type	Name
State	California
County	Marin County
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		$1,784,800 (+2%) Land $780,850 Building $1,003,950
2025	$25,951.00	$1,749,808 Land $765,541 Building $984,267
2023	$24,581.00 (+3.19%)	$1,681,872 Land $735,819 Building $946,053
2022	$23,820.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 523 Brookline Ave in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1982.

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
Community Rating System	Class 6 (20% premium discount)
Nearby Flood Policies	6 in force
Nearby Flood Claims	6 (1982–2019)
Claims Outside the SFHA	3 of 6
Most Recent Claim	Feb 2019 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event	Coastal Storms, Floods, Slides & Tornadoes, Mar 1983 · 3 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

Wildfire risk around 523 Brookline Ave is moderate, ranking above 40% of the US, with a 0.07% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Moderate above 40% of the US · lower than 76% of California
Wildfire Likelihood	0.07% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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

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

May also be available: T-Mobile, Unwired, Verizon.

Nearby Properties on Brookline Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

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