2801 Winthrop Ave, San Ramon, CA 94583 Property Records

Contra Costa County property record for 2801 Winthrop Ave, San Ramon, CA 94583

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 1,970 sqft · built 1970
Lot Size	0.207 acres (9,000 sqft)
Owner	2 Individual Names on File
Last Sale	$1,350,000 (Jul 2022)
Tax Bill	$15,978 (2025)
Deeds & Mortgages	Jul 2022 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`210-501-020-7`

Property Details

APN / Parcel Number

Primary APN	`210-501-020-7`
Alternative APN	`210-501-020`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,970 sqft Living Area
Gross Area	2,416 sqft
1st Floor Area	1,970 sqft
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 1970
Effective Year Built	Effective 1990
Architectural Style	Ranch
Exterior Material	Stucco
Construction Type	Frame
Roof Material	Wood Shingle
Lot Area	9,000 sqft (0.207 acres)
Garage Type	Attached
Garage Area	446 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C
Sewer	Municipal
Water Source	Commercial

Location & Zoning

Street Address	2801 WINTHROP AVE
City	SAN RAMON
State	CA
Zip	94583-3436
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TRACT 3278 LOT 34 & TR ADJ
Legal Subdivision	3278 TAREYTON AVE
Legal Tract	3278
Legal Lot Number	34
Jurisdiction	CONTRA COSTA CA
Township / Civil Division	CENTRAL CONTRA COSTA
Census Block Group	1
Census Block	1002
Census Tract	345101

Owner

2801 Winthrop Ave is owned and occupied by two individuals who bought it in July 2022.

Source: Contra Costa County records, as of July 14, 2026

Owner of Record	2 Individual Names on File
Mailing Address	2801 WINTHROP AVE, SAN RAMON, CA 94583-3436
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Community Property

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

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 25, 2022 · Amount on File
Deed Sale	Jul 25, 2022 · Amount on File
Deed Document Number	2022117577
Record Updated	Oct 29, 2026

July 2022: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	CONTRA COSTA CA
Recording Date	Jul 25, 2022
Property Address	2801 WINTHROP AVE, SAN RAMON, CA 94583-3436
Document Number	0000117577
Map Reference	MB 108 PG 33
Instrument Date	Jul 18, 2022
Instrument	2022-117577
Transaction Type	Transfer
Record Updated	Nov 3, 2022
Title Company	FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount on Record
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

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Community Property with Right of Survivorship
Address	2801 WINTHROP AVE, SAN RAMON, CA 94583-3436

Mortgage

Document Number	0000117578
Date	Jul 25, 2022
Instrument	2022-117578

Lender

Name	SAN FRANCISCO FIRE CU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Aug 1, 2052

Interest

Rate Type	Adjustable Rate
Type Change Date	Aug 1, 2032
Change Frequency	Annually
Min Rate At Change	2.5%
Max Rate At Change	9.87%
Index	1-Year CMT
Max Rate	9.87%

Tax Assessment & Valuation

The 2025 property tax bill for 2801 Winthrop Ave was $15,978 with a homeowner's exemption.

Source: Contra Costa County assessment roll, as of July 14, 2026

Property Jurisdictions

Type	Name
State	California
County	Contra Costa County
Municipality	San Ramon City
Unified School District	San Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value
2026		$1,432,630 (+2%) Land $1,061,208 Building $371,422
2025	$15,978.00 Homeowner's exemption	$1,404,540 Land $1,040,400 Building $364,140
2023	$15,418.00 (+222.62%) Homeowner's exemption	$1,350,000 Land $1,000,000 Building $350,000
2022	$4,779.00

Assessed value is set for property tax purposes and is not a market price estimate.

Flood

FEMA maps place 2801 Winthrop Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 12, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 2801 Winthrop Ave is moderate, ranking above 46% of the US, with a 0.09% annual chance of wildfire.

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

Wildfire Risk	Moderate above 46% of the US · lower than 72% of California
Wildfire Likelihood	0.09% annual chance
Exposure	Indirect 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	EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005
Water Source	Surface water
Last State Inspection	Dec 2021
Lead	Under 1 ppb (2022–2024) 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 265 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 2,000
Unwired Fixed Wireless	300 / 25
Verizon Fixed Wireless	300 / 20
Etheric Networks Fixed Wireless	250 / 100
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20

May also be available: T-Mobile.

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