12 Knapp Ct, San Mateo, CA 94403 Property Records

San Mateo County property record for 12 Knapp Ct, San Mateo, CA 94403

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 1,680 sqft · built 1921
Lot Size	0.198 acres (8,611 sqft)
Owner	2 Company Names on Record
Last Sale	$1,725,000 (Nov 2016)
Tax Bill	$25,165 (2025)
Deeds & Mortgages	Mar 2022 Mortgage Apr 2018 Line of Credit + 2 more
Flood Zone	Zone X (minimal risk)
APN	`039-386-050`

Property Details

APN / Parcel Number

Primary APN	`039-386-050`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,680 sqft Living Area
1st Floor Area	880 sqft
Family Room	Family Room
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1921
Effective Year Built	Effective 1921
Architectural Style	Ranch
Exterior Material	Wood
Construction Type	Wood
Roof Material	Wood Shingle
Lot Area	8,611 sqft (0.198 acres)
Lot Dimensions	100 ft deep x 86 ft wide
Garage Area	510 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	12 KNAPP CT
City	SAN MATEO
State	CA
Zip	94403-2773
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 7 BLOCK 1 MAP OF KNAPP RESUB RSM 22/29 30 CITY OF SAN MATEO
Legal Subdivision	MAP OF KNAPP RESUB
Legal Block	1
Legal Lot Number	7
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	2
Census Block	2001
Census Tract	607300

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 Company Names on Record
Mailing Address	12 KNAPP CT, SAN MATEO, CA 94403-2773
Occupancy	Owner Occupied
Owner Type	Company
Vesting	Trust

Deeds, Mortgages & Sale History

Date	Document
Mar 1, 2022	Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA NA
Apr 4, 2018	Deed of Trust, Mortgage · Line of Credit WELLS FARGO BANK NA
Aug 18, 2020	Deed of Trust, Mortgage · Conventional Mortgage FIRST REPUBLIC BANK
May 28, 2020	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 3, 2016 · Amount on Record
Deed Sale	Nov 3, 2016 · Amount on Record
Prior Sale	May 23, 2013 · Amount on Record
Deed Document Number	2016115739
Last Transfer Date	Apr 22, 2020
Transfer Doc	0000048900
Record Updated	Oct 29, 2026

March 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	12 KNAPP CT, SAN MATEO, CA 94403-2773
Transaction Type	Mortgage
Record Updated	Mar 24, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	12 KNAPP CT, SAN MATEO, CA 94403-2773

Mortgage

Document Number	0000017972
Date	Mar 1, 2022
Instrument	2022-017972

Lender

Name	BANK OF AMERICA NA
Type	Bank
Address	CHARLOTTE, NC 28255

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 1, 2052

April 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	12 KNAPP CT, SAN MATEO, CA 94403-2773
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000025238
Date	Apr 4, 2018
Instrument	2018-025238

Lender

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

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	360 Months
Due	Apr 28, 2048

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	12 KNAPP CT, SAN MATEO, CA 94403-2773
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	OLD REPUBLIC TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	12 KNAPP CT, SAN MATEO, CA 94403-2773

Mortgage

Document Number	0000082084
Date	Aug 18, 2020
Instrument	2020-082084

Lender

Name	FIRST REPUBLIC BANK
Type	Bank
Address	SAN FRANCISCO, CA 94111

Agreement

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

May 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	May 28, 2020
Property Address	12 KNAPP CT, SAN MATEO, CA 94403-2773
Document Number	0000048900
Instrument Date	Apr 22, 2020
Instrument	48900
Transaction Type	Transfer
Record Updated	Jun 23, 2020
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	12 KNAPP CT SAN MATEO CA 944032773, SAN MATEO, CA 94403-2773

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		$2,215,772 (+5.06%) Land $1,775,694 Building $440,078
2025	$25,165.00 (+3.74%) Homeowner's exemption	$2,109,092 (+4.04%) Land $1,740,877 Building $368,215
2023	$24,257.00 (-0.08%) Homeowner's exemption	$2,027,197 Land $1,673,278 Building $353,919	$2,202,030
2022	$24,276.00

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 minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	2 in force
Nearby Flood Claims	4 (1998–2022)
Claims Outside the SFHA	4 of 4
Most Recent Claim	Dec 2022 · rainfall accumulation

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 716 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Sonic Telecom Fiber	10,000 / 10,000
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Xfinity Cable	2,000 / 250
Astound Broadband Cable · Fiber in parts of the area	1,500 / 50

May also be available: Etheric Networks, GeoLinks, T-Mobile.

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