606 Birch Ave, San Mateo, CA 94402 Property Records

San Mateo County property record for 606 Birch Ave, San Mateo, CA 94402

Property Summary

Property Type	Single Family Home
Details	3 bd · 2 ba · 1,430 sqft · built 1942
Lot Size	0.103 acres (4,500 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,247,000 (Nov 2023)
Tax Bill	$16,005 (2025)
Deeds & Mortgages	Apr 2025 Mortgage Jan 2026 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`035-032-020`

Property Details

APN / Parcel Number

Primary APN	`035-032-020`

Interior

Bedrooms	3 Beds
Full Baths	2 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	1,430 sqft Living Area
Gross Area	1,840 sqft
1st Floor Area	1,060 sqft
Basement Area	410 sqft
Family Room	Family Room

Exterior

Year Built	Built 1942
Effective Year Built	Effective 1942
Lot Area	4,500 sqft (0.103 acres)
Lot Dimensions	90 ft deep x 50 ft wide
Garage Type	Basement
Garage Area	410 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	606 BIRCH AVE
City	SAN MATEO
State	CA
Zip	94402-1951
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 2 BLOCK 13 SUNNYBRAE MAP NO 2 RSM 22/37
Legal Subdivision	SUNNYBRAE MAP NO 2
Legal Block	13
Legal Lot Number	2
Jurisdiction	SAN MATEO CA
Township / Civil Division	SAN MATEO
Census Block Group	4
Census Block	4003
Census Tract	607600

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	606 BIRCH AVE, SAN MATEO, CA 94402-1951
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Apr 14, 2025	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC
Jan 13, 2026	Intrafamily Transfer, Transfer · Conventional Mortgage OPTIMUM FIRST INC
Nov 16, 2023	Grant Deed, Transfer · Conventional Mortgage GUARANTEED RATE INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 16, 2023 · Amount on Record
Deed Sale	Nov 16, 2023 · Amount on Record
Deed Document Number	202361012
Last Transfer Date	Jan 7, 2026
Transfer Doc	0000001696
Record Updated	Sep 20, 2026

April 2025: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	SAN MATEO CA
Property Address	606 BIRCH AVE, SAN MATEO, CA 94402-1951
Transaction Type	Mortgage
Record Updated	Feb 12, 2026

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	606 BIRCH AVE, SAN MATEO, CA 94402-1951

Mortgage

Document Number	0000017730
Date	Apr 14, 2025
Instrument	2025-017730

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2055

January 2026: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	SAN MATEO CA
Recording Date	Jan 13, 2026
Property Address	606 BIRCH AVE, SAN MATEO, CA 94402-1951
Document Number	0000001696
Map Reference	MB 22 PG 37
Instrument Date	Jan 2, 2026
Instrument	2026-001696
Transaction Type	Transfer
Record Updated	Feb 12, 2026
Title Company	WFG NATIONAL TITLE COMPANY/CA, WFG NATIONAL TITLE CO OF CA

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	Joint Tenants
Address	606 BIRCH AVE, SAN MATEO, CA 94402-1951

Mortgage

Document Number	0000001697
Date	Jan 13, 2026
Instrument	2026-001697

Lender

Name	OPTIMUM FIRST INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	181 Months
Due	Feb 1, 2041

November 2023: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	SAN MATEO CA
Recording Date	Nov 16, 2023
Property Address	606 BIRCH AVE, SAN MATEO, CA 94402-1951
Document Number	0000061012
Map Reference	MB 22 PG 37
Instrument Date	Nov 14, 2023
Instrument	2023-061012
Transaction Type	Transfer
Record Updated	Dec 15, 2023
Title Company	LAWYERS TITLE COMPANY/CA, LAWYERS TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$7,606.70
Amount Accuracy	Rounded by County
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	606 BIRCH AVE, SAN MATEO, CA 94402-1951

Mortgage

Document Number	0000061013
Date	Nov 16, 2023
Instrument	2023-061013

Lender

Name	GUARANTEED RATE INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Dec 1, 2053

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		$1,325,378 (+4.2%) Land $1,073,692 Building $251,686
2025	$16,005.00 (+72.17%) Homeowner's exemption	$1,271,940 (+117.35%) Land $1,052,640 Building $219,300
2023	$9,296.00 (+4.08%)	$585,203 Land $288,128 Building $297,075	$1,091,700
2022	$8,932.00

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

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	4 in force
Nearby Flood Claims	2 (2010–2022)
Claims Outside the SFHA	1 of 2
Most Recent Claim	Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides

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 915 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
Sonic Telecom Fiber	1,000 / 1,000
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: GeoLinks.

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