121 Castleton Way, San Bruno, CA 94066 Property Records

San Mateo County property record for 121 Castleton Way, San Bruno, CA 94066

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,300 sqft · built 1963
Lot Size	0.118 acres (5,132 sqft)
Owner	2 Company Names on File
Tax Bill	$4,714 (2025)
Deeds & Mortgages	Nov 2023 Transfer
Flood Zone	Zone X (minimal risk)
APN	`017-421-080`

Property Details

APN / Parcel Number

Primary APN	`017-421-080`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Building Area	1,300 sqft Living Area
Gross Area	2,070 sqft
1st Floor Area	1,300 sqft
Basement Area	770 sqft
Family Room	Family Room

Exterior

Year Built	Built 1963
Effective Year Built	Effective 1963
Lot Area	5,132 sqft (0.118 acres)
Lot Dimensions	100 ft deep x 51 ft wide
Garage Type	Basement
Garage Area	770 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	121 CASTLETON WAY
City	SAN BRUNO
State	CA
Zip	94066-1642
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 32 BLK 18 PACIFIC HEIGHTS NO 8 RSM 56/19 20
Legal Subdivision	PACIFIC HEIGHTS NO 8
Legal Block	18
Legal Lot Number	32
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	2
Census Block	2006
Census Tract	614000

Owner

Source: San Mateo County records · APN 017-421-080

Assessment roll updated July 15, 2026 · Last verified July 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 File
Mailing Address	121 CASTLETON WAY, SAN BRUNO, CA 94066-1642
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Transfer Date	Nov 01, 2023
Transfer Doc	0000061049
Record Updated	Sep 20, 2026

November 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Nov 16, 2023
Property Address	121 CASTLETON WAY, SAN BRUNO, CA 94066-1642
Document Number	0000061049
Map Reference	MB 56 PG 19&20
Instrument Date	Nov 01, 2023
Instrument	2023-061049
Transaction Type	Transfer
Record Updated	Dec 15, 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	Family Trust
Address	121 CASTLETON WAY, SAN BRUNO, CA 94066-1642

Tax Assessment & Valuation

Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	San Bruno City
Elementary School District	San Bruno Park Elementary School District (KG - 08)
Secondary School District	San Mateo Union High School District (09 - 12)

Tax Bill & Assessment History

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

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$367,377 (+2%) Land $81,626 Building $285,751
2025	$4,714.00 (+24.22%) Homeowner's exemption	$360,175 (+4.04%) Land $80,026 Building $280,149
2023	$3,795.00 (+1.2%) Homeowner's exemption	$346,190 Land $76,919 Building $269,271	$1,133,910
2022	$3,750.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of September 10, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	1 in force

Wildfire

Wildfire Risk	Low lower than 66% of the US · lower than 80% of California
Wildfire Likelihood	0.05% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable · Fiber in parts of the area	2,000 / 250
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Starlink Satellite	280 / 30
Etheric Communications, LLC. Fixed Wireless	250 / 100

Based on FCC filings for 178 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF SAN BRUNO serves 42,631 people
Water Source	Purchased surface water from several systems
Last State Inspection	Jul 2024
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	None last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.