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250 la Serena Ave, Alamo, CA 94507 Property Records

Contra Costa County property record for 250 la Serena Ave, Alamo, CA 94507

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 3,029 sqft · built 1971
Lot Size0.396 acres (17,228 sqft)
Owner2 Company Names on Record
Last Sale$3,100,000 (Aug 2026)
Tax Bill$19,882 (2025)
Deeds & MortgagesAug 2026 Sale
Flood ZoneZone X (minimal risk)
APN198-093-003-4

Property Details

APN / Parcel Number

Primary APN198-093-003-4
Alternative APN
  • 198-093-003

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms9 Rooms
Stories1 Story
Building Area3,029 sqft Living Area
1st Floor Area3,029 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1971
Effective Year BuiltEffective 1987
Architectural StyleRanch
Lot Area17,228 sqft (0.396 acres)
Garage TypeAttached
Garage Area960 sqft
Parking Spaces4 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air with A/C

Location & Zoning

Street Address250 LA SERENA AVE
CityALAMO
StateCA
Zip94507-2150
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR20
Legal DescriptionALAMO VILLA ESTATES LOT 3
Legal SubdivisionALAMO VILLA ESTATES
Legal Lot Number3
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group1
Census Block1006
Census Tract345204

Owner

Source: Contra Costa County records, as of September 9, 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 Address250 LA SERENA AVE, ALAMO, CA 94507-2150
Owner TypeCompany
VestingLife Tenant

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 31, 2026 · Amount on Record
Deed SaleAug 31, 2026 · Amount on Record
Prior SaleFeb 7, 2012 · Amount on Record
Deed Document Number202691804
Prior Transfer DateJun 22, 2012
Prior Transfer Doc0000150087
Record UpdatedOct 29, 2026

August 2026: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateAug 31, 2026
Property Address250 LA SERENA AVE, ALAMO, CA 94507-2150
Document Number0000091804
Instrument DateAug 20, 2026
Instrument202691804
Transaction TypeTransfer
Record UpdatedSep 9, 2026
Title CompanyCHICAGO TITLE W, CHICAGO TITLE

Transaction

AmountAmount Recorded
Tax$344,410.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLife Tenant
Address250 LA SERENA AVE, ALAMO, CA 94507-2150

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$1,776,159 (+2%) Land $1,024,935 Building $751,224
2025$19,882.00 (+3.63%)$1,741,334 (+4.04%) Land $1,004,839 Building $736,495
2023$19,185.00 (+0.74%)$1,673,718 Land $965,821 Building $707,897
2022$19,044.00

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

Flood

Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone A, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies9 in force
Nearby Flood Claims8 (1982–2023)
Claims Outside the SFHA3 of 8
Most Recent ClaimApr 2023 · rainfall accumulation
Claims by Event
  • Severe Storms, Flooding, Mud And Landslides, Jan 1997 · 2 claims
  • Severe Storms, Flood, Mudslides & High Tide, Jan 1982 · 2 claims

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 RiskModerate
above 46% of the US · lower than 72% of California
Wildfire Likelihood0.08% annual chance
ExposureDirect
burnable vegetation

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 200 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · DSL		5,000 / 5,000
Xfinity
Cable		2,000 / 250
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20

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