50 Arroyo Seco, Millbrae, CA 94030 Property Records

San Mateo County property record for 50 Arroyo Seco, Millbrae, CA 94030

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 2,900 sqft · built 1964
Lot Size	0.321 acres (13,991 sqft)
Owner	2 Individual Names on File
Last Sale	$2,800,000 (Aug 2021)
Tax Bill	$36,089 (2025)
Deeds & Mortgages	Aug 2021 Sale & Mortgage Nov 2018 Transfer + 1 more
Flood Zone	Zone X (minimal risk)
APN	`024-021-470`

Property Details

APN / Parcel Number

Primary APN	`024-021-470`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,900 sqft Living Area
Gross Area	4,000 sqft
1st Floor Area	2,000 sqft
2nd Floor Area	900 sqft
Basement Area	1,100 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1964
Effective Year Built	Effective 1964
Architectural Style	Contemporary
Exterior Material	Wood
Construction Type	Wood
Roof Material	Wood
Lot Area	13,991 sqft (0.321 acres)
Lot Dimensions	150 ft deep x 90 ft wide
Garage Area	480 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	50 ARROYO SECO
City	MILLBRAE
State	CA
Zip	94030-2106
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 21 MILLBRAE HIGHLANDS SUB NO 10 RSM 34/17 18 CITY OF MILLBRAE
Legal Subdivision	MILLBRAE HIGHLANDS
Legal Lot Number	21
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	1
Census Block	1004
Census Tract	604700

Owner

50 Arroyo Seco is owned and occupied by two individuals who bought it in August 2021.

Source: San Mateo County records, as of July 15, 2026

Owner of Record	2 Individual Names on File
Mailing Address	50 ARROYO SECO, MILLBRAE, CA 94030-2106
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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 24, 2021	Grant Deed, Transfer · Conventional Mortgage BANK OF THE WEST
Nov 21, 2018	Quit Claim Deed, Transfer FIRST AMERICAN TITLE COMPANY RESID', FIRST AMERICAN TITLE CO RESID'
Nov 21, 2018	Quit Claim Deed, Transfer · Conventional Mortgage VAL-CHRIS INVS

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 24, 2021 · Amount on File
Deed Sale	Aug 24, 2021 · Amount on File
Prior Sale	Mar 6, 1995 · Amount on File
Deed Document Number	2021123599
Prior Transfer Date	Dec 15, 1994
Prior Transfer Doc	0000001686
Record Updated	Oct 29, 2026

August 2021: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 24, 2021
Property Address	50 ARROYO SECO, MILLBRAE, CA 94030-2106
Document Number	0000123599
Map Reference	MB 34 PG 17&18
Instrument Date	Aug 16, 2021
Instrument	2021-123599
Transaction Type	Transfer
Record Updated	Sep 20, 2021
Title Company	OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$3,080.00
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	PO BOX 282288, SAN FRANCISCO, CA 94128-2288

Mortgage

Document Number	0000123600
Date	Aug 24, 2021
Instrument	2021-123600

Lender

Name	BANK OF THE WEST
Type	Bank

Agreement

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

Interest

Rate Type	Adjustable Rate
Rate	1.87%
Type Change Date	Sep 1, 2031
Change Frequency	Annually
Min Rate At Change	3%
Max Rate At Change	6.87%
Index	Other
Margin	3
Max Rate	6.87%

November 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 21, 2018
Property Address	50 ARROYO SECO, MILLBRAE, CA 94030-2106
Document Number	0000090851
Instrument Date	Nov 6, 2018
Instrument	90851
Transaction Type	Transfer
Record Updated	Dec 7, 2018
Title Company	FIRST AMERICAN TITLE COMPANY RESID', FIRST AMERICAN TITLE CO RESID'

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	50 ARROYO SECO MILLBRAE CA 940302106, MILLBRAE, CA 94030-2106

November 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 21, 2018
Property Address	50 ARROYO SECO, MILLBRAE, CA 94030-2106
Document Number	0000090855
Instrument Date	Nov 6, 2018
Instrument	90855
Transaction Type	Transfer
Record Updated	Dec 11, 2018
Title Company	FIRST AMERICAN TITLE COMPANY RESID', FIRST AMERICAN TITLE CO RESID'

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	50 ARROYO SECO MILLBRAE CA 940302106, MILLBRAE, CA 94030-2106

Mortgage

Document Number	90852
Date	Nov 21, 2018
Instrument	90852

Lender

Name	VAL-CHRIS INVS
Type	MERS
Address	IRVINE, CA 92614

Agreement

Type	Conventional Mortgage
Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 50 Arroyo Seco was $36,089 with a homeowner's exemption, up 7.6% from the year before.

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	Millbrae City
Elementary School District	Millbrae Elementary School District (KG - 08)
Secondary School District	San Mateo Union High School District (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$3,112,408 (+2%) Land $1,786,012 Building $1,326,396
2025	$36,089.00 (+7.61%) Homeowner's exemption	$3,051,382 Land $1,750,993 Building $1,300,389
2024	$33,537.00 (+0.94%)
2023	$33,224.00 (+5.66%)	$2,856,000 Land $1,683,000 Building $1,173,000	$2,446,380
2022	$31,445.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 50 Arroyo Seco in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 10, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 50 Arroyo Seco is low, with a 0.02% annual chance of 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	0.02% 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	CITY OF MILLBRAE serves 22,795 people · EPA ID CA4110018
Water Source	Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State Inspection	Apr 2025
Lead	Under 1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 679 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
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

May also be available: T-Mobile.

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