San Mateo County property record for 18 Trillium Ln, San Carlos, CA 94070
| Property Type | Condominium |
|---|---|
| Details | 3 bd · 2.5 ba · 2,031 sqft · built 1981 |
| Lot Size | 19.1 acres (833,701 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,150,000 (Jul 2021) |
| Tax Bill | $21,361 (2025) |
| Deeds & Mortgages | Jul 2021 Mortgage Jul 2021 Second Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 111-500-230 |
| Primary APN | 111-500-230 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Units | 120 Units |
| Stories | 2 Stories |
| Building Area | 2,031 sqft Living Area |
| Family Room | Family Room |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1981 |
|---|---|
| Effective Year Built | Effective 1981 |
| Architectural Style | Condo/Apartment |
| Lot Area | 833,701 sqft |
| View / Lot | End Unit |
| Garage Type | Carport |
| Carport | Carport |
| Sewer | Municipal |
|---|---|
| Water Source | Commercial |
| Street Address | 18 TRILLIUM LN |
|---|---|
| City | SAN CARLOS |
| State | CA |
| Zip | 94070-1525 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | PC0000 |
| Legal Description | UNIT 336 BLDG I-24 CRESTVIEW PARK PHASE IV REEL 7969 IMAGE 526 |
| Legal Subdivision | CRESTVIEW PARK PHASE IV |
| Legal Lot Number | 1 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 608900 |
18 Trillium Ln, a condominium, is owned and occupied by two individuals who bought it in July 2021.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jul 23, 2021 | Deed of Trust, Mortgage · Commercial Mortgage THE BOARD OF TRUSTEES OF THE LELAND STAN |
| Jul 23, 2021 | Deed of Trust, Mortgage · Stand-Alone Second Mortgage THE BOARD OF TRUSTEES OF THE LELAND STAN |
| Jul 23, 2021 | Deed of Trust, Mortgage · Stand-Alone Second Mortgage THE BOARD OF TRUSTEES OF THE LELAND STAN |
| Jul 23, 2021 | Grant Deed, Transfer · Conventional Mortgage FIRST REPUBLIC BANK |
| Jun 28, 2017 | Deed of Trust, Mortgage · Line of Credit PROVIDENT CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 23, 2021 · Amount on File |
| Deed Sale | Jul 23, 2021 · Amount on File |
| Prior Sale | Apr 28, 2005 · Amount on File |
| Deed Document Number | 2021109438 |
| Transfer Doc | 0000093446 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Transaction Type | Mortgage |
| Record Updated | Aug 10, 2023 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Document Number | 0000109441 |
|---|---|
| Date | Jul 23, 2021 |
| Instrument | 2021-109441 |
| Name | THE BOARD OF TRUSTEES OF THE LELAND STAN |
|---|---|
| Type | Government Agency |
| Address | STANFORD, CA 94305 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Transaction Type | Mortgage |
| Record Updated | Oct 18, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Document Number | 0000109442 |
|---|---|
| Date | Jul 23, 2021 |
| Instrument | 2021-109442 |
| Name | THE BOARD OF TRUSTEES OF THE LELAND STAN |
|---|---|
| Type | Government Agency |
| Address | STANFORD, CA 94305 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Transaction Type | Mortgage |
| Record Updated | Oct 18, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Document Number | 0000109443 |
|---|---|
| Date | Jul 23, 2021 |
| Instrument | 2021-109443 |
| Name | THE BOARD OF TRUSTEES OF THE LELAND STAN |
|---|---|
| Type | Government Agency |
| Address | STANFORD, CA 94305 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jul 23, 2021 |
| Property Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Document Number | 0000109438 |
| Map Reference | MB 84 PG 29-33 |
| Instrument Date | Jul 8, 2021 |
| Instrument | 2021-109438 |
| Transaction Type | Transfer |
| Record Updated | Oct 18, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,365.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Document Number | 0000109439 |
|---|---|
| Date | Jul 23, 2021 |
| Instrument | 2021-109439 |
| Name | FIRST REPUBLIC BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Aug 1, 2051 |
| Document Number | 0000109440 |
|---|---|
| Date | Jul 23, 2021 |
| Instrument | 2021-109440 |
| Name | THE BOARD OF TRUSTEES OF THE LELAND STAN |
|---|---|
| Type | Government Agency |
| Address | STANFORD, CA 94305 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Property Address | 18 TRILLIUM LN, SAN CARLOS, CA 94070-1525 |
| Document Number | 0000057973 |
| Instrument Date | Jun 28, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 3, 2017 |
| Title Company | CHICAGO TITLE COMPANY, CHICAGO TITLE INSURANCE COMPAN |
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 18 TRILLIUM LN SAN CARLOS CA 940701525, SAN CARLOS, CA 94070-1525 |
| Document Number | 0000057973 |
|---|---|
| Date | Jul 7, 2017 |
| Instrument | 57973 |
| Name | PROVIDENT CU |
|---|---|
| Type | Credit Union |
| Address | REDWOOD, CA 94065-1409 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 18 Trillium Ln was $21,361 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 Carlos City |
| Elementary School District | Belmont-Redwood Shores Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,650,000 (-5.17%) Land $825,000 Building $825,000 | ||
| 2025 | $21,361.00 Homeowner's exemption | $1,740,000 Land $870,000 Building $870,000 | |
| 2023 | $20,456.00 (-18.12%) Homeowner's exemption | $1,700,000 Land $850,000 Building $850,000 | $1,882,620 |
| 2022 | $24,982.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 18 Trillium Ln in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 18 Trillium Ln 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 62% of the US · lower than 77% of California |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | Direct burnable vegetation |
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 | CALIFORNIA WATER SERVICE - SAN CARLOS private · serves 34,801 people · EPA ID CA4110007 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Sep 2024 |
| Lead | 6 ppb (2022–2024) 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 125 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
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