871 Sextant Ct, San Mateo, CA 94404 Property Records

San Mateo County property record for 871 Sextant Ct, San Mateo, CA 94404

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,660 sqft · built 1972
Lot Size	0.064 acres (2,805 sqft)
Owner	Individual Name on Record
Last Sale	$1,350,000 (Jan 2018)
Tax Bill	$19,441 (2025)
Deeds & Mortgages	Jan 2018 Sale & Mortgage
Flood Zone	Zone X (reduced by levee)
APN	`035-522-220`

Property Details

APN / Parcel Number

Primary APN	`035-522-220`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	7 Rooms
Building Area	1,660 sqft Living Area
1st Floor Area	930 sqft
2nd Floor Area	730 sqft
Family Room	Family Room
Game Room	Game Room

Exterior

Year Built	Built 1972
Effective Year Built	Effective 1972
Lot Area	2,805 sqft (0.064 acres)
Lot Dimensions	100 ft deep x 26 ft wide
Garage Area	430 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	871 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 22 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	22
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	1
Census Block	1002
Census Tract	607900

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	Individual Name on Record
Mailing Address	871 SEXTANT CT, SAN MATEO, CA 94404-1508
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Estate

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 17, 2018 · Amount on Record
Deed Sale	Jan 17, 2018 · Amount on Record
Deed Document Number	20182842
Prior Transfer Date	Mar 4, 2010
Prior Transfer Doc	0000025110
Record Updated	Oct 29, 2026

January 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jan 17, 2018
Property Address	871 SEXTANT CT, SAN MATEO, CA 94404-1508
Document Number	0000002842
Map Reference	MB67 PG19-27
Instrument Date	Jan 12, 2018
Instrument	2018-002842
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	FIRST AMERICAN TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Estate
Address	871 SEXTANT CT, SAN MATEO, CA 94404-1508

Mortgage

Document Number	0000002843
Date	Jan 17, 2018
Instrument	2018-002843

Lender

Name	GENERAL MORTGAGE CAPITAL CORP
Type	Non-Lending Institution

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Feb 1, 2048

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	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)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$1,566,784 (+2%) Land $1,044,524 Building $522,260
2025	$19,441.00 (+4.63%) Homeowner's exemption	$1,536,064 (+4.04%) Land $1,024,044 Building $512,020
2023	$18,580.00 (+3.15%) Homeowner's exemption	$1,476,419 Land $984,280 Building $492,139	$1,505,070
2022	$18,013.00

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 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	Severe Winter Storms, Flooding, Landslides, And Mudslides, Jan 2023 · 2 claims

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	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.

Drinking Water

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

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, 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 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.