209 Sebastian Dr, Millbrae, CA 94030 Property Records

San Mateo County property record for 209 Sebastian Dr, Millbrae, CA 94030

Property Summary

Property Type	Single Family Home
Details	5 bd · 4 ba · 2,820 sqft · built 1963
Lot Size	0.216 acres (9,413 sqft)
Owner	2 Company Names on Record
Last Sale	$2,030,000 (Jan 2014)
Tax Bill	$20,873 (2025)
Deeds & Mortgages	May 2023 Transfer
Flood Zone	Zone X (minimal risk)
APN	`024-413-100`

Property Details

APN / Parcel Number

Primary APN	`024-413-100`

Interior

Bedrooms	5 Beds
Full Baths	4 Baths
Total Rooms	9 Rooms
Stories	2 Stories
Building Area	2,820 sqft Living Area
1st Floor Area	2,040 sqft
2nd Floor Area	690 sqft
Basement Area	320 sqft
Family Room	Family Room

Exterior

Year Built	Built 1963
Effective Year Built	Effective 1963
Lot Area	9,413 sqft (0.216 acres)
Lot Dimensions	138 ft deep x 69 ft wide
Garage Area	490 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	209 SEBASTIAN DR
City	MILLBRAE
State	CA
Zip	94030-2940
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 3 BLK 33 MILLS ESTATE NO 20 RSM 51/48 50 CITY OF MILLBRAE
Legal Subdivision	MILLS ESTATE NO 20
Legal Block	33
Legal Lot Number	3
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	2
Census Block	2000
Census Tract	604900

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	209 SEBASTIAN DR, MILLBRAE, CA 94030-2940
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jan 30, 2014 · Amount on Record
Deed Sale	Jan 30, 2014 · Amount on Record
Prior Sale	Jun 6, 2008 · Amount on Record
Deed Document Number	20147893
Last Transfer Date	May 16, 2023
Transfer Doc	0000024399
Record Updated	Oct 29, 2026

May 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	May 23, 2023
Property Address	209 SEBASTIAN DR, MILLBRAE, CA 94030-2940
Document Number	0000024400
Map Reference	MB 51 PG 48-50
Instrument Date	May 19, 2023
Instrument	2023-024400
Transaction Type	Transfer
Record Updated	Jun 14, 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
Address	209 SEBASTIAN DR, MILLBRAE, CA 94030-2940

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		$1,745,722 (+2%) Land $544,275 Building $1,201,447
2025	$20,873.00 (+6.21%) Homeowner's exemption	$1,711,493 (+4.04%) Land $533,603 Building $1,177,890
2023	$19,652.00 (+8.74%) Homeowner's exemption	$1,645,036 Land $512,884 Building $1,132,152	$2,322,630
2022	$18,073.00

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
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force
Nearby Flood Claims	2 (1985–1989)
Claims Outside the SFHA	2 of 2
Most Recent Claim	Oct 1989 · tidal / storm surge

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	0.01% 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 554 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
T-Mobile Fixed Wireless	100 / 20