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321 Flax Ln, San Ramon, CA 94582 Property Records

Contra Costa County property record for 321 Flax Ln, San Ramon, CA 94582

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 2,495 sqft · built 1995
Lot Size0.188 acres (8,200 sqft)
OwnerTrust Name on File
Last Sale$760,000 (Feb 2003)
Tax Bill$13,572 (2025)
Deeds & MortgagesApr 2022 Transfer
Flood ZoneZone X (minimal risk)
APN217-390-016-4

Property Details

APN / Parcel Number

Primary APN217-390-016-4
Alternative APN
  • 217-390-016

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms11 Rooms
Stories2 Stories
Building Area2,495 sqft Living Area
1st Floor Area1,472 sqft
2nd Floor Area1,023 sqft

Exterior

Year BuiltBuilt 1995
Effective Year BuiltEffective 1995
Lot Area8,200 sqft (0.188 acres)
Garage TypeAttached
Garage Area588 sqft
Parking Spaces2 Parking Spaces

Location & Zoning

Street Address321 FLAX LN
CitySAN RAMON
StateCA
Zip94582-5562
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionT7015 L27
Legal SubdivisionWEST BRANCH SUB 7015
Legal Tract7015
Legal Lot Number27
JurisdictionCONTRA COSTA CA
Township / Civil DivisionTASSAJARA
Census Block Group3
Census Block3004
Census Tract355121

Owner

321 Flax Ln is owner-occupied and held in a trust since March 2022.

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

Owner of RecordTrust Name on File
Mailing Address321 FLAX LN, SAN RAMON, CA 94582-5562
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust

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 NamesName on Deed
Last SaleFeb 10, 2003 · Amount on File
Deed SaleFeb 10, 2003 · Amount on File
Prior SaleFeb 13, 1997 · Amount on File
Deed Document Number200361678
Last Transfer DateMar 10, 2022
Transfer Doc0000058320
Record UpdatedSep 20, 2026

April 2022: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateApr 4, 2022
Property Address321 FLAX LN, SAN RAMON, CA 94582-5562
Document Number0000058320
Map ReferenceMB 337 PG 4
Instrument DateMar 10, 2022
Instrument2022-058320
Transaction TypeTransfer
Record UpdatedJun 7, 2023

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Trust
Address321 FLAX LN, SAN RAMON, CA 94582-5562

Tax Assessment & Valuation

The 2025 property tax bill for 321 Flax Ln was $13,572 with a homeowner's exemption.

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$1,122,726 (+2%) Land $502,269 Building $620,457
2025$13,572.00 Homeowner's exemption$1,100,713 Land $492,421 Building $608,292
2023$13,039.00 (+0.92%) Homeowner's exemption$1,057,972 Land $473,300 Building $584,672
2022$12,920.00

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

Flood

FEMA maps place 321 Flax Ln in Zone X, an area of minimal flood risk, within 100 ft of a high-risk flood zone.

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

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone A, within 100 ft
Flood Insurance RequirementNot required
lenders may require it

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

Wildfire

Wildfire risk around 321 Flax Ln is moderate, ranking above 57% of the US, with a 0.1% annual chance of wildfire.

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

Wildfire RiskModerate
above 57% of the US · lower than 66% of California
Wildfire Likelihood0.1% annual chance
ExposureIndirect
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 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 520 locations within half a mile, as of December 31, 2025

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

May also be available: Etheric Networks, Verizon.

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