San Mateo County property record for 270 Castleton Way, San Bruno, CA 94066
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,720 sqft · built 1961 |
| Lot Size | 0.121 acres (5,249 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,600,000 (May 2021) |
| Tax Bill | $19,828 (2025) |
| Deeds & Mortgages | May 2021 Sale & Mortgage Feb 2020 Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 017-374-260 |
| Primary APN | 017-374-260 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,720 sqft Living Area |
| 1st Floor Area | 1,260 sqft |
| Family Room | Family Room |
| Study | Study |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 5,249 sqft (0.121 acres) |
| Lot Dimensions | 101 ft deep x 52 ft wide |
| Garage Area | 500 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 270 CASTLETON WAY |
|---|---|
| City | SAN BRUNO |
| State | CA |
| Zip | 94066-1645 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 10 BLOCK 17 PACIFIC HEIGHTS NO 7 RSM 54/38 |
| Legal Subdivision | PACIFIC HEIGHTS NO 7 |
| Legal Block | 17 |
| Legal Lot Number | 10 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 614000 |
270 Castleton Way is owned and occupied by two individuals who bought it in May 2021.
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 270 CASTLETON WAY, SAN BRUNO, CA 94066-1645 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| May 14, 2021 | Grant Deed, Transfer · Conventional Mortgage BETTER MORTGAGE CORPORATION |
| Feb 26, 2020 | Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC |
| Oct 4, 2019 | Quit Claim Deed, Transfer · Conventional Mortgage LOANDEPOT.COM LLC |
| Jun 6, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Jun 6, 2018 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 14, 2021 · Amount on File |
| Deed Sale | May 14, 2021 · Amount on File |
| Deed Document Number | 202177019 |
| Prior Transfer Date | Jun 10, 2019 |
| Prior Transfer Doc | 0000082485 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | May 14, 2021 |
| Property Address | 270 CASTLETON WAY, SAN BRUNO, CA 94066-1645 |
| Document Number | 0000077019 |
| Map Reference | MB 54 PG 38 |
| Instrument Date | May 3, 2021 |
| Instrument | 2021-077019 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2021 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,760.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 270 CASTLETON WAY, SAN BRUNO, CA 94066-1645 |
| Document Number | 0000077020 |
|---|---|
| Date | May 14, 2021 |
| Instrument | 2021-077020 |
| Name | BETTER MORTGAGE CORPORATION |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 270 CASTLETON WAY, SAN BRUNO, CA 94066-1645 |
| Document Number | 0000023545 |
| Instrument Date | Feb 26, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Apr 15, 2020 |
| Title Company | AMERICAN COAST TITLE COMPANY, AMERICAN COAST TITLE CO. |
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 270 CASTLETON WAY SAN BRUNO CA SAN BRUNO CA 94066, SAN BRUNO, CA 94066 |
| Document Number | 0000023545 |
|---|---|
| Date | Mar 16, 2020 |
| Instrument | 23545 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Funding / Finance Company |
| Address | FOOTHILL RANCH, CA 92610 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 15, 2050 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Oct 4, 2019 |
| Property Address | 270 CASTLETON WAY, SAN BRUNO, CA 94066-1645 |
| Document Number | 0000082485 |
| Instrument Date | Jun 10, 2019 |
| Instrument | 82485 |
| Transaction Type | Transfer |
| Record Updated | Oct 28, 2019 |
| Title Company | AMERICAN COAST TITLE COMPANY, AMERICAN COAST TITLE CO. |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 270 CASTLETON WAY SAN BRUNO CA 940661645, SAN BRUNO, CA 94066-1645 |
| Document Number | 82486 |
|---|---|
| Date | Oct 4, 2019 |
| Instrument | 82486 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Funding / Finance Company |
| Address | FOOTHILL RANCH, CA 92610 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Oct 3, 2049 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jun 6, 2018 |
| Property Address | 270 CASTLETON WAY, SAN BRUNO, CA 94066-1645 |
| Document Number | 0000043498 |
| Instrument Date | May 10, 2018 |
| Instrument | 43498 |
| Transaction Type | Transfer |
| Record Updated | Jun 21, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Separate Estate/Property |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jun 6, 2018 |
| Property Address | 270 CASTLETON WAY, SAN BRUNO, CA 94066-1645 |
| Document Number | 0000043497 |
| Instrument Date | May 10, 2018 |
| Instrument | 43497 |
| Transaction Type | Transfer |
| Record Updated | Jun 21, 2018 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 205 CHAPARRAL DR SMITH NV 89430, SMITH, NV 89430 |
The 2025 property tax bill for 270 Castleton Way was $19,828 with a homeowner's exemption.
Source: San Mateo County assessment roll, as of July 15, 2026
| 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) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,543,000 (-10.91%) Land $728,000 Building $815,000 | ||
| 2025 | $19,828.00 Homeowner's exemption | $1,731,890 Land $817,236 Building $914,654 | |
| 2023 | $18,211.00 (+1.16%) Homeowner's exemption | $1,664,640 Land $785,502 Building $879,138 | $1,312,560 |
| 2022 | $18,002.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 270 Castleton Way in Zone X, an area of minimal flood risk.
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 |
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 risk around 270 Castleton Way is low, with a 0.05% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| 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 cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF SAN BRUNO serves 42,631 people · EPA ID CA4110023 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 2024 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 178 locations within half a mile, as of December 31, 2025
| 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 Networks Fixed Wireless | 250 / 100 |
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