423 Helen Dr, Millbrae, CA 94030 Property Records

San Mateo County property record for 423 Helen Dr, Millbrae, CA 94030

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,290 sqft · built 1948
Lot Size	0.115 acres (5,005 sqft)
Owner	2 Company Names on Record
Tax Bill	$8,770 (2025)
Deeds & Mortgages	Feb 2022 Transfer Aug 2021 Line of Credit + 3 more
Flood Zone	Zone X (minimal risk)
APN	`021-345-220`

Property Details

APN / Parcel Number

Primary APN	`021-345-220`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,290 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
Architectural Style	Ranch
Exterior Material	Stucco
Roof Material	Composition Shingle
Lot Area	5,005 sqft (0.115 acres)
Lot Dimensions	91 ft deep x 55 ft wide
Garage Area	420 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Heating Fuel	Gas
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	423 HELEN DR
City	MILLBRAE
State	CA
Zip	94030-1617
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 13 BLOCK 12 MEADOW GLEN RSM 26/7 8 9
Legal Subdivision	MEADOW GLEN
Legal Block	12
Legal Lot Number	13
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	1
Census Block	1010
Census Tract	604800

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 Company Names on Record
Mailing Address	423 HELEN DR, MILLBRAE, CA 94030-1617
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Feb 4, 2022	Intrafamily Transfer, Transfer
Aug 4, 2021	Deed of Trust, Mortgage · Line of Credit CITIBANK NA
Feb 7, 2017	Deed of Trust, Mortgage · Line of Credit CITIBANK NA
Oct 27, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage AMERIS BANK
Oct 27, 2020	Quit Claim Deed, Transfer FIDELITY NATIONAL TITLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Jan 28, 2022
Transfer Doc	0000010964
Record Updated	Sep 20, 2026

February 2022: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Feb 4, 2022
Property Address	423 HELEN DR, MILLBRAE, CA 94030-1617
Document Number	0000010964
Map Reference	MB 26 PG 6-9
Instrument Date	Jan 23, 2022
Instrument	2022-010964
Transaction Type	Transfer
Record Updated	Jun 7, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	423 HELEN DR, MILLBRAE, CA 94030-1617

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	423 HELEN DR, MILLBRAE, CA 94030-1617
Transaction Type	Mortgage
Record Updated	Aug 25, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	423 HELEN DR, MILLBRAE, CA 94030-1617

Mortgage

Document Number	0000114505
Date	Aug 4, 2021
Instrument	2021-114505

Lender

Name	CITIBANK NA
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Aug 3, 2051

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

February 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	423 HELEN DR, MILLBRAE, CA 94030-1617
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000011870
Date	Feb 7, 2017
Instrument	2017-011870

Lender

Name	CITIBANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

October 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Oct 27, 2020
Property Address	423 HELEN DR, MILLBRAE, CA 94030-1617
Document Number	0000118025
Map Reference	MB 26 PG 6-9
Instrument Date	Oct 21, 2020
Instrument	2020-118025
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	FIDELITY NATIONAL TITLE

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property
Address	423 HELEN DR, MILLBRAE, CA 94030-1617

Mortgage

Document Number	0000118026
Date	Oct 27, 2020
Instrument	2020-118026

Lender

Name	AMERIS BANK
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2050

October 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Oct 27, 2020
Property Address	423 HELEN DR, MILLBRAE, CA 94030-1617
Document Number	0000118027
Instrument Date	Oct 21, 2020
Instrument	118027
Transaction Type	Transfer
Record Updated	Dec 1, 2020
Title Company	FIDELITY NATIONAL TITLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	423 HELEN DR MILLBRAE CA 940301617, MILLBRAE, CA 94030-1617

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		$643,638 (+2%) Land $321,819 Building $321,819
2025	$8,770.00 (+8.14%) Homeowner's exemption	$631,018 (+4.04%) Land $315,509 Building $315,509
2023	$8,110.00 (+18.36%) Homeowner's exemption	$606,516 Land $303,258 Building $303,258	$1,419,030
2022	$6,852.00

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Nearest Special Flood Hazard Area	Zone A, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	2 (1982)
Most Recent Claim	May 1982 · rainfall accumulation

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 97% of the US · lower than 97.8% of California
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

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.

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