824 Ada St, San Mateo, CA 94401 Property Records

San Mateo County property record for 824 Ada St, San Mateo, CA 94401

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,450 sqft · built 1949
Lot Size	0.115 acres (5,000 sqft)
Owner	2 Individual Names on Record
Last Sale	$780,000 (Aug 2017)
Tax Bill	$16,530 (2025)
Deeds & Mortgages	Oct 2019 Mortgage Apr 2020 Mortgage + 2 more
Flood Zone	Zone X (reduced by levee)
APN	`033-334-100`

Property Details

APN / Parcel Number

Primary APN	`033-334-100`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,450 sqft Living Area
1st Floor Area	820 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1949
Effective Year Built	Effective 1949
Architectural Style	Ranch
Exterior Material	Wood Siding
Construction Type	Frame
Roof Material	Tar & Gravel
Lot Area	5,000 sqft (0.115 acres)
Lot Dimensions	100 ft deep x 50 ft wide
Garage Area	240 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	824 ADA ST
City	SAN MATEO
State	CA
Zip	94401-3104
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R106
Legal Description	LOT 21 BLOCK 10 SHORE VIEW TRACT MAP NO 8 RSM 30/25 26 27 28CITY OF SAN MATEO
Legal Subdivision	SHORE VIEW TRACT MAP NO 8
Legal Block	10
Legal Lot Number	21
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2016
Census Tract	607701

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	2 Individual Names on Record
Mailing Address	824 ADA ST, SAN MATEO, CA 94401-3104
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Oct 29, 2019	Deed of Trust, Mortgage · Conventional Mortgage WELLS FARGO BANK NA
Apr 10, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage MASON MCDUFFIE MORTGAGE CORP
Aug 17, 2017	Quit Claim Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPANY
Aug 17, 2017	Grant Deed, Transfer FIDELITY NATIONAL TITLE CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 17, 2017 · Amount on Record
Deed Sale	Aug 17, 2017 · Amount on Record
Prior Sale	May 30, 2007 · Amount on Record
Deed Document Number	201771856
Prior Transfer Date	Dec 19, 1996
Prior Transfer Doc	0000159357
Record Updated	Oct 29, 2026

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	824 ADA ST, SAN MATEO, CA 94401-3104
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000090357
Date	Oct 29, 2019
Instrument	2019-090357

Lender

Name	WELLS FARGO BANK NA
Type	Bank
Address	SIOUX FALLS, SD 57104

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2049

April 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Apr 10, 2020
Property Address	824 ADA ST, SAN MATEO, CA 94401-3104
Document Number	0000032756
Map Reference	MB 30 PG 25-28
Instrument Date	Apr 3, 2020
Instrument	2020-032756
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	FIDELITY NATIONAL TITLE CO

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	Community Property with Right of Survivorship
Address	824 ADA ST, SAN MATEO, CA 94401-3104

Mortgage

Document Number	0000032757
Date	Apr 10, 2020
Instrument	2020-032757

Lender

Name	MASON MCDUFFIE MORTGAGE CORP
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2050

August 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 17, 2017
Property Address	824 ADA ST, SAN MATEO, CA 94401-3104
Document Number	0000071857
Instrument Date	Aug 11, 2017
Instrument	71857
Transaction Type	Transfer
Record Updated	Aug 31, 2017
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE COMPANY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Separate Estate/Property
Address	824 ADA ST SAN MATEO CA 944013104, SAN MATEO, CA 94401-3104

August 2017: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Aug 17, 2017
Property Address	824 ADA ST, SAN MATEO, CA 94401-3104
Document Number	0000071856
Map Reference	MAP30 PG25-28
Instrument Date	Aug 11, 2017
Instrument	2017-071856
Transaction Type	Transfer
Record Updated	Aug 9, 2021
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	824 ADA ST, SAN MATEO, CA 94401-3104

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		$1,276,640 (+2%) Land $696,349 Building $580,291
2025	$16,530.00 (+5.92%)	$1,251,609 (+4.04%) Land $682,696 Building $568,913
2023	$15,606.00 (+1.32%)	$1,203,009 Land $656,187 Building $546,822	$895,590
2022	$15,402.00

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
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 12 policies
Nearby Flood Policies	12 in force
Nearby Flood Claims	6 (1978–2004)
Most Recent Claim	Nov 2004
Claims by Event	Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 4 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	CALIFORNIA WATER SERVICE - SAN MATEO private · serves 103,536 people · EPA ID CA4110008
Water Source	Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM
Last State Inspection	Mar 2025
Lead	4 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 697 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
Astound Broadband Cable	1,500 / 50
Verizon Fixed Wireless	1,000 / 75
Unwired Fixed Wireless	300 / 25
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks, Sonic Telecom.

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