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31 Cobblestone Ct, San Ramon, CA 94583 Property Records

Contra Costa County property record for 31 Cobblestone Ct, San Ramon, CA 94583

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,826 sqft · built 1981
Lot Size0.31 acres (13,500 sqft)
Owner2 Company Names on Record
Last Sale$1,705,000 (Jan 2025)
Tax Bill$9,718 (2025)
Deeds & MortgagesAug 2017 Line of Credit
Dec 2018 Transfer
Flood ZoneZone X (minimal risk)
APN209-581-004-6

Property Details

APN / Parcel Number

Primary APN209-581-004-6
Alternative APN
  • 209-581-004

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms9 Rooms
Stories1 Story
Building Area1,826 sqft Living Area
1st Floor Area1,826 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1981
Effective Year BuiltEffective 1982
Architectural StyleRanch
Exterior MaterialStucco
Roof MaterialWood Shingle
Lot Area13,500 sqft (0.31 acres)
Garage TypeAttached
Garage Area440 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Heating SystemForced Air with A/C
Heating FuelGas
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address31 COBBLESTONE CT
CitySAN RAMON
StateCA
Zip94583-1754
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT05379 L0004 B
Legal SubdivisionSUBDIVISION 5379
Legal Tract05379
Legal Lot Number4
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1002
Census Tract345206

Owner

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

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

Owner of Record2 Company Names on Record
Mailing Address31 COBBLESTONE CT, SAN RAMON, CA 94583-1754
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

DateDocument
Aug 21, 2017Deed of Trust, Mortgage · Line of Credit
WELLS FARGO BANK NA
Dec 28, 2018Quit Claim Deed, Transfer
Quitclaim

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJan 28, 2025 · Amount on Record
Deed SaleJan 28, 2025 · Amount on Record
Prior SaleMay 16, 2001 · Amount on Record
Deed Document Number20257967
Prior Transfer DateDec 23, 2018
Prior Transfer Doc0000207619
Record UpdatedOct 29, 2026

August 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionCONTRA COSTA CA
Property Address31 COBBLESTONE CT, SAN RAMON, CA 94583-1754
Transaction TypeMortgage
Record UpdatedNov 3, 2022
Title CompanyAMERICAN TITLE INC

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000151340
DateAug 21, 2017
Instrument2017-151340
Lender
NameWELLS FARGO BANK NA
TypeBank
AddressSIOUX FALLS, SD 57104
Agreement
TypeLine of Credit
AmountAmount Recorded
Term361 Months
DueSep 9, 2047

December 2018: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionCONTRA COSTA CA
Recording DateDec 28, 2018
Property Address31 COBBLESTONE CT, SAN RAMON, CA 94583-1754
Document Number0000207619
Instrument DateDec 23, 2018
Instrument207619
Transaction TypeTransfer
Record UpdatedJan 9, 2019

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipPersonal Trust
Address1551 MILLER AVE SAN JOSE CA 951293941, SAN JOSE, CA 95129-3941

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
MunicipalitySan Ramon City
Unified School DistrictSan Ramon Valley Unified School District (KG - 12)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$530,048 (-33.63%) Land $284,468 Building $245,580
2025$9,718.00 (+3.84%)$798,606 (+4.04%) Land $414,371 Building $384,235
2023$9,359.00 (+0.75%)$767,597 Land $398,282 Building $369,315
2022$9,289.00

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 October 12, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

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

Wildfire

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

Wildfire RiskHigh
above 84% of the US · above 63% of California
Wildfire Likelihood0.9% annual chance
ExposureIndirect
within ember reach
Adjoins Burnable LandYes

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 SystemEAST BAY MUD
serves 1,468,000 people · EPA ID CA0110005
Water SourceSurface water
Last State InspectionDec 2021
LeadUnder 1 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 198 locations within half a mile, as of December 31, 2025

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

May also be available: T-Mobile.

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