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123 Post Rd, Alamo, CA 94507 Property Records

Contra Costa County property record for 123 Post Rd, Alamo, CA 94507

Property Summary

Property TypeSingle Family Home
Details2 bd · 2 ba · 2,874 sqft · built 1964
Lot Size0.612 acres (26,676 sqft)
Owner2 Company Names on Record
Last Sale$2,100,000 (Dec 2024)
Tax Bill$24,111 (2025)
Deeds & MortgagesNov 2025 Transfer
Flood ZoneZone X (minimal risk)
APN188-430-004-5

Property Details

APN / Parcel Number

Primary APN188-430-004-5
Alternative APN
  • 188-430-004

Interior

Bedrooms2 Beds
Full Baths2 Baths
Total Rooms10 Rooms
Stories1 Story
Building Area2,874 sqft Living Area
Gross Area3,367 sqft
1st Floor Area2,874 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1964
Effective Year BuiltEffective 1995
Architectural StyleMediterranean
Exterior MaterialStucco
Construction TypeFrame
Roof MaterialTile
Lot Area26,676 sqft (0.612 acres)
Garage TypeAttached
Garage Area493 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air with A/C
SewerMunicipal
Water SourceCommercial

Location & Zoning

Street Address123 POST RD
CityALAMO
StateCA
Zip94507-2619
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR20
Legal DescriptionTRACT 3096 LOT 4
Legal SubdivisionSUBDIVISION 3096
Legal Tract3096
Legal Lot Number4
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group6
Census Block6016
Census Tract334200

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 Address123 POST RD, ALAMO, CA 94507-2619
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleDec 20, 2024 · Amount on Record
Deed SaleDec 20, 2024 · Amount on Record
Prior SaleDec 1, 1998
Deed Document Number2024136196
Prior Transfer DateAug 18, 1999
Prior Transfer Doc0000222976
Record UpdatedOct 29, 2026

November 2025: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionCONTRA COSTA CA
Recording DateNov 18, 2025
Property Address123 POST RD, ALAMO, CA 94507-2619
Document Number0000129561
Map ReferenceMB 92 PG 47
Instrument DateNov 18, 2025
Instrument2025- 129561
Transaction TypeTransfer
Record UpdatedDec 9, 2025

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address123 POST RD, ALAMO, CA 94507-2619

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateCalifornia
CountyContra Costa County
Secondary School DistrictAcalanes Union High School District (09 - 12)
Elementary School DistrictWalnut Creek Elementary School District (KG - 08)

Tax Bill & Assessment History

YearTax BillAssessed Value
2026$2,142,000 (+2%) Land $1,428,000 Building $714,000
2025$24,111.00 (+100.52%) Homeowner's exemption$2,100,000 (+103.47%) Land $1,400,000 Building $700,000
2023$12,024.00 (+2.31%) Homeowner's exemption$1,032,084 Land $421,907 Building $610,177
2022$11,752.00

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 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 62 policies
Community Rating SystemClass 8 (10% premium discount)
Nearby Flood Policies62 in force
Nearby Flood Claims8 (1997–2022)
Claims Outside the SFHA1 of 8
Most Recent ClaimDec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Winter Storms, Flooding, Landslides, And Mudslides, Dec 2022 · 5 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 RiskLow
lower than 65% of the US · lower than 79% of California
Wildfire Likelihood0.04% 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 316 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable		2,000 / 250
Astound Broadband
Cable		1,500 / 50
Unwired
Fixed Wireless		300 / 25
Verizon
Fixed Wireless		300 / 20
AT&T
DSL · Fiber, Fixed Wireless in parts of the area		100 / 20

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

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