San Mateo County property record for 879 Sextant Ct, San Mateo, CA 94404
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,590 sqft · built 1972 |
| Lot Size | 0.059 acres (2,550 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $6,271 (2025) |
| Flood Zone | Zone X (reduced by levee) |
| APN | 035-522-210 |
| Primary APN | 035-522-210 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,590 sqft Living Area |
| 1st Floor Area | 1,150 sqft |
| 2nd Floor Area | 440 sqft |
| Family Room | Family Room |
| Game Room | Game Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1972 |
| Architectural Style | Contemporary |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 2,550 sqft (0.059 acres) |
| Lot Dimensions | 100 ft deep x 26 ft wide |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Pool Type | Heated Pool |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 879 SEXTANT CT |
|---|---|
| City | SAN MATEO |
| State | CA |
| Zip | 94404-1508 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10003 |
| Legal Description | LOT 21 BLK 3 & 1/161 INT IN PAR A AREAS 1 TO 12 INCL BLK 2 PAR A AREA 1 BLK 3 MARINERS ISLAND UNIT NO 3 RSM 67/19 27 |
| Legal Subdivision | MARINERS ISLAND UNIT NO 3 |
| Legal Block | 3,1,2 |
| Legal Lot Number | 21 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 607900 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | PO BOX 5242, SAN MATEO, CA 94402-0242 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Apr 6, 2001 |
| Transfer Doc | 0000056912 |
| Record Updated | Sep 20, 2026 |
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | San Mateo City |
| Elementary School District | San Mateo-Foster City 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 | $419,536 (+2%) Land $209,768 Building $209,768 | ||
| 2025 | $6,271.00 (+6.22%) | $411,310 (+4.04%) Land $205,655 Building $205,655 | |
| 2023 | $5,904.00 (-11.23%) | $395,340 Land $197,670 Building $197,670 | $1,443,690 |
| 2022 | $6,651.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 reduced by levee · depends on levee performance |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 23 policies |
| Nearby Flood Policies | 23 in force |
| Nearby Flood Claims | 3 (2005–2023) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Jan 2023 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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 | ESTERO MUNICIPAL IMPROVEMENT DISTRICT serves 36,556 people · EPA ID CA4110021 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Nov 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 357 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 |
May also be available: Astound Broadband, GeoLinks, Sail Internet, T-Mobile, Verizon.
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