321 San Rey Ave, Millbrae, CA 94030 Property Records

San Mateo County property record for 321 San Rey Ave, Millbrae, CA 94030

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,150 sqft · built 1953
Lot Size	0.115 acres (5,000 sqft)
Owner	2 Individual Names on File
Last Sale	$1,145,000 (May 2023)
Tax Bill	$15,173 (2025)
Deeds & Mortgages	Jul 2026 Mortgage May 2023 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`021-307-190`

Property Details

APN / Parcel Number

Primary APN	`021-307-190`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,150 sqft Living Area
1st Floor Area	1,150 sqft
Family Room	Family Room

Exterior

Year Built	Built 1953
Effective Year Built	Effective 1953
Lot Area	5,000 sqft (0.115 acres)
Lot Dimensions	100 ft deep x 50 ft wide
Garage Area	460 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	321 SAN REY AVE
City	MILLBRAE
State	CA
Zip	94030-2024
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOTS 48 49 BLOCK 4 NORTH MILLBRAE
Legal Subdivision	NORTH MILLBRAE
Legal Block	4
Legal Lot Number	48
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	2
Census Block	2008
Census Tract	604400

Owner

321 San Rey Ave is owned and occupied by two individuals who bought it in May 2023.

Source: San Mateo County records, as of August 31, 2026

Owner of Record	2 Individual Names on File
Mailing Address	321 SAN REY AVE, MILLBRAE, CA 94030-2024
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
Jul 16, 2026	Deed of Trust, Mortgage · Conventional Mortgage FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMP
May 31, 2023	Grant Deed, Transfer · Conventional Mortgage OUTSTANDING INVESTMENT CO INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 31, 2023 · Amount on File
Deed Sale	May 31, 2023 · Amount on File
Deed Document Number	202325748
Prior Transfer Date	Feb 21, 2013
Prior Transfer Doc	0000111848
Record Updated	Oct 29, 2026

July 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Recording Date	Jul 16, 2026
Property Address	321 SAN REY AVE, MILLBRAE, CA 94030-2024
Document Number	0000040493
Instrument Date	Jul 13, 2026
Instrument	202640493
Transaction Type	Mortgage
Record Updated	Sep 9, 2026
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMP

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2096 QUESADA AVE, SAN FRANCISCO, CA 94124-2047

Mortgage

Document Number	0000040493,
Date	Jul 16, 2026
Instrument	202640493

Lender

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months

Interest

Max Rate	-1%

May 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 31, 2023
Property Address	321 SAN REY AVE, MILLBRAE, CA 94030-2024
Document Number	0000025748
Map Reference	MB 5 PG 49
Instrument Date	May 18, 2023
Instrument	2023-025748
Transaction Type	Transfer
Record Updated	Jun 20, 2023
Title Company	CHICAGO TITLE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$1,259.50
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	321 SAN REY AVE, MILLBRAE, CA 94030-2024

Mortgage

Document Number	0000025749
Date	May 31, 2023
Instrument	2023-025749

Lender

Name	OUTSTANDING INVESTMENT CO INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jun 1, 2053

Interest

Rate Type	Adjustable Rate
Rate	6.75%
Type Change Date	Jun 1, 2030
Change Frequency	6 Months
Min Rate At Change	3%
Max Rate At Change	11.7%
Index	Other
Margin	3
Max Rate	11.7%

Tax Assessment & Valuation

The 2025 property tax bill for 321 San Rey Ave was $15,173.

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		$1,215,082 (+2%) Land $976,311 Building $238,771
2025	$15,173.00	$1,191,258 Land $957,168 Building $234,090
2023	$2,795.00 (+92.36%)	$103,927 Land $36,614 Building $67,313	$997,650
2022	$1,453.00

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

FEMA maps place 321 San Rey Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 83 policies
Community Rating System	Class 7 (15% premium discount)
Nearby Flood Policies	83 in force
Nearby Flood Claims	10 (1982–1983)
Claims Outside the SFHA	7 of 10
Most Recent Claim	Jan 1983 · tidal / storm surge
Claims by Event	Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 8 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 321 San Rey Ave is low, with a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 94% of the US · lower than 96% of California
Wildfire Likelihood	0.01% 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 441 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Sail Internet, Verizon.

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