523 Helen Dr, Millbrae, CA 94030 Property Records

San Mateo County property record for 523 Helen Dr, Millbrae, CA 94030

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,480 sqft · built 1948
Lot Size	0.136 acres (5,927 sqft)
Owner	2 Individual Names on Record
Last Sale	$412,500 (Jan 2017)
Tax Bill	$11,917 (2025)
Deeds & Mortgages	Jan 2017 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`021-331-240`

Property Details

APN / Parcel Number

Primary APN	`021-331-240`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	5 Rooms
Stories	1 Story
Building Area	1,480 sqft Living Area
1st Floor Area	1,290 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1948
Effective Year Built	Effective 1948
Lot Area	5,927 sqft (0.136 acres)
Lot Dimensions	118 ft deep x 50 ft wide
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	523 HELEN DR
City	MILLBRAE
State	CA
Zip	94030-1619
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 44 BLOCK 18 MEADOW GLEN UNIT NO 2 RSM 29/27 CITY OF MILLBRAE
Legal Subdivision	MEADOW GLEN UNIT NO 2
Legal Block	18
Legal Lot Number	44
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	1
Census Block	1000
Census Tract	604700

Owner

Source: San Mateo County records, as of July 15, 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	523 HELEN DR, MILLBRAE, CA 94030-1619
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 25, 2017 · Amount on Record
Deed Sale	Jan 25, 2017 · Amount on Record
Prior Sale	Apr 18, 2002 · Amount on Record
Deed Document Number	20177378
Prior Transfer Date	Jan 17, 2017
Prior Transfer Doc	0000007378
Record Updated	Oct 29, 2026

January 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 25, 2017
Property Address	523 HELEN DR, MILLBRAE, CA 94030-1619
Document Number	0000007378
Instrument Date	Jan 17, 2017
Instrument	7378
Transaction Type	Transfer
Record Updated	Feb 14, 2017
Title Company	NORTH AMERICAN TITLE

Transaction

Amount	Amount Recorded
Loan-to-Value (LTV)	LTV on Record
Tax	$453.75
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Common
Address	523 HELEN DR MILLBRAE CA 940301619, MILLBRAE, CA 94030-1619

Mortgage

Document Number	7379
Date	Jan 25, 2017
Instrument	7379

Lender

Name	PRIVATE INDIVIDUAL
Type	Private Party
Address	1288 KIFER RD # 208, SUNNYVALE, CA 94086-5328

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jan 24, 2047

Tax Assessment & Valuation

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		$895,044 (+2%) Land $447,522 Building $447,522
2025	$11,917.00 (+7.24%) Homeowner's exemption	$877,496 (+4.04%) Land $438,748 Building $438,748
2023	$11,112.00 (+17.79%) Homeowner's exemption	$843,424 Land $421,712 Building $421,712	$1,414,890
2022	$9,434.00

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

Flood

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

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	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 586 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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