4 Rio Ct, Burlingame, CA 94010 Property Records

San Mateo County property record for 4 Rio Ct, Burlingame, CA 94010

Property Summary

Property Type	Single Family Home
Details	3 bd · 2.5 ba · 2,380 sqft · built 1951
Lot Size	0.185 acres (8,056 sqft)
Owner	Company Name on File
Tax Bill	$3,794 (2025)
Deeds & Mortgages	Feb 2018 Transfer Jul 2017 Transfer
Flood Zone	Zone X (minimal risk)
APN	`025-051-180`

Property Details

APN / Parcel Number

Primary APN	`025-051-180`

Interior

Bedrooms	3 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Building Area	2,380 sqft Living Area
1st Floor Area	2,380 sqft
Family Room	Family Room

Exterior

Year Built	Built 1951
Effective Year Built	Effective 1951
Lot Area	8,056 sqft (0.185 acres)
Lot Dimensions	95 ft deep x 90 ft wide
Garage Area	480 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Central

Location & Zoning

Street Address	4 RIO CT
City	BURLINGAME
State	CA
Zip	94010-5741
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R10006
Legal Description	LOT 18 BLOCK 35 MILLS ESTATE NO 9 RSM 46/33 34 CITY OF BURLINGAME
Legal Subdivision	MILLS ESTATE NO 9
Legal Block	35
Legal Lot Number	18
Jurisdiction	SAN MATEO CA
Township / Civil Division	SOUTH SAN FRANCISCO
Census Block Group	5
Census Block	5003
Census Tract	605000

Owner

4 Rio Ct is owned by a company that acquired it in January 2018.

Source: San Mateo County records, as of July 15, 2026

Owner of Record	Company Name on File
Mailing Address	653 GREENWICH LN, FOSTER CITY, CA 94404-3616
Owner Type	Company
Vesting	Company

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Feb 28, 2018	Quit Claim Deed, Transfer ATTORNEY ONLY
Jul 17, 2017	Quit Claim Deed, Transfer ATTORNEY ONLY

Assessor's Deed Record

Deed Names	Name on Deed
Last Transfer Date	Jan 1, 2018
Transfer Doc	0000014558
Record Updated	Oct 29, 2026

February 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Feb 28, 2018
Property Address	4 RIO CT, BURLINGAME, CA 94010-5741
Document Number	0000014558
Instrument Date	Jan 1, 2018
Instrument	14558
Transaction Type	Transfer
Record Updated	Mar 16, 2018
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	Company
Address	653 GREENWICH LN FOSTER CITY CA 944043616, FOSTER CITY, CA 94404-3616

July 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	SAN MATEO CA
Recording Date	Jul 17, 2017
Property Address	4 RIO CT, BURLINGAME, CA 94010-5741
Document Number	0000060931
Instrument Date	Jun 27, 2017
Instrument	60931
Transaction Type	Transfer
Record Updated	Jan 3, 2018
Title Company	ATTORNEY ONLY

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer Partial Interest

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Living Trust
Address	653 GREENWICH LN FOSTER CITY CA 944043616, FOSTER CITY, CA 94404-3616

Tax Assessment & Valuation

The 2025 property tax bill for 4 Rio Ct was $3,794.

Source: San Mateo County assessment roll, as of July 15, 2026

Property Jurisdictions

Type	Name
State	California
County	San Mateo County
Municipality	Burlingame City
Elementary School District	Burlingame 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		$264,737 (+2%) Land $65,956 Building $198,781
2025	$3,794.00	$259,547 Land $64,663 Building $194,884
2023	$3,353.00 (+2.29%)	$249,470 Land $62,153 Building $187,317	$3,004,830
2022	$3,278.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 4 Rio Ct in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1978.

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
Community Rating System	Class 9 (5% premium discount)
Nearby Flood Policies	2 in force
Nearby Flood Claims	1 (1978)
Most Recent Claim	Jan 1978 · tidal / storm surge

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

Wildfire risk around 4 Rio Ct is low, with a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 80% of the US · lower than 88% of California
Wildfire Likelihood	0.01% annual chance
Exposure	None beyond 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	CITY OF BURLINGAME serves 32,453 people · EPA ID CA4110003
Water Source	Purchased surface water from several systems
Last State Inspection	Nov 2024
Lead	6 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 493 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber	5,000 / 5,000
Xfinity Cable	2,000 / 250
Etheric Networks Fixed Wireless	250 / 100

May also be available: Sonic Telecom, T-Mobile, Verizon.

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