550 Helen Dr, Millbrae, CA 94030 Property Records

San Mateo County property record for 550 Helen Dr, Millbrae, CA 94030

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,195 sqft · built 1960
Lot Size	0.22 acres (9,565 sqft)
Owner	2 Company Names on Record
Last Sale	$2,750,000 (Jul 2026)
Tax Bill	$16,731 (2025)
Deeds & Mortgages	Jul 2026 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`021-333-150`

Property Details

APN / Parcel Number

Primary APN	`021-333-150`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,195 sqft Living Area
1st Floor Area	1,090 sqft
2nd Floor Area	910 sqft
Family Room	Family Room
Study	Study

Exterior

Year Built	Built 1960
Effective Year Built	Effective 1960
Lot Area	9,565 sqft (0.22 acres)
Garage Area	500 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	550 HELEN DR
City	MILLBRAE
State	CA
Zip	94030-1620
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 6 GREEN HILLS MANOR RSM 49/12 CITY OF MILLBRAE
Legal Subdivision	GREEN HILLS MANOR
Legal Lot Number	6
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	1
Census Block	1001
Census Tract	604500

Owner

Source: San Mateo County records, as of August 11, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Company Names on Record
Mailing Address	550 HELEN DR, MILLBRAE, CA 94030-1620
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 10, 2026 · Amount on Record
Deed Sale	Jul 10, 2026 · Amount on Record
Prior Sale	Oct 28, 2010 · Amount on Record
Deed Document Number	202639444
Prior Transfer Date	Jun 6, 1996
Prior Transfer Doc	0000135698
Record Updated	Oct 29, 2026

July 2026: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 10, 2026
Property Address	550 HELEN DR, MILLBRAE, CA 94030-1620
Document Number	0000039444
Instrument Date	Jun 23, 2026
Instrument	202639444
Transaction Type	Transfer
Record Updated	Aug 28, 2026
Title Company	OLD REPUBLIC TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$305,525.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	550 HELEN DR, MILLBRAE, CA 94030-1620

Mortgage

Document Number	0000039445,
Date	Jul 10, 2026
Instrument	202639445

Lender

Name	FIRST TECHNOLOGY FEDERAL CREDIT UNION

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 1, 2056

Interest

Rate Type	Adjustable Rate
Rate	5.88%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

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		$1,318,955 (+2%) Land $637,060 Building $681,895
2025	$16,731.00 (+7.74%) Homeowner's exemption	$1,293,094 (+4.04%) Land $624,569 Building $668,525
2023	$15,529.00 (+12.63%) Homeowner's exemption	$1,242,884 Land $600,317 Building $642,567	$1,729,980
2022	$13,788.00

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 September 10, 2026 · 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 Claims	2 (1985–1998)
Claims Outside the SFHA	1 of 2
Most Recent Claim	Feb 1998 · Severe Winter Storms And Flooding

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	0.02% 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 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
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100

May also be available: T-Mobile.

Nearby Properties on Helen Dr

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

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