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100 Post Rd, Alamo, CA 94507 Property Records

Contra Costa County property record for 100 Post Rd, Alamo, CA 94507 · Last verified July 2026

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 2,352 sqft · built 1963
Lot Size0.495 acres (21,580 sqft)
Owner2 Individual Names on File
Last Sale$2,100,000 (Oct 2022)
Tax Bill$25,115 (2025)
Deeds & MortgagesOct 2022 Sale & Mortgage
Flood ZoneZone X (minimal risk)
APN188-430-012-8

Property Details

APN / Parcel Number

Primary APN188-430-012-8
Alternative APN
  • 188-430-012

Interior

Bedrooms4 Beds
Full Baths3 Baths
Total Rooms9 Rooms
Stories1 Story
Building Area2,352 sqft Living Area
1st Floor Area2,352 sqft

Exterior

Year BuiltBuilt 1963
Effective Year BuiltEffective 1968
Lot Area21,580 sqft (0.495 acres)
Garage TypeAttached
Garage Area552 sqft
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral

Location & Zoning

Street Address100 POST RD
CityALAMO
StateCA
Zip94507-2619
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionTRACT 3096 LOT 12
Legal SubdivisionSUBDIVISION 3096
Legal Tract3096
Legal Lot Number12
JurisdictionCONTRA COSTA CA
Township / Civil DivisionCENTRAL CONTRA COSTA
Census Block Group6
Census Block6016
Census Tract334200

Owner

Source: Contra Costa County records · APN 188-430-012-8

Assessment roll updated July 14, 2026 · Last verified July 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on File
Mailing Address100 POST RD, ALAMO, CA 94507-2619
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleOct 21, 2022 · Amount on Record
Deed SaleOct 21, 2022 · Amount on Record
Deed Document Number2022164916
Record UpdatedSep 20, 2026

October 2022: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionCONTRA COSTA CA
Recording DateOct 21, 2022
Property Address100 POST RD, ALAMO, CA 94507-2619
Document Number0000164916
Map ReferenceMB 92 PG 47
Instrument DateOct 11, 2022
Instrument2022-164916
Transaction TypeTransfer
Record UpdatedNov 03, 2022
Title CompanyCHICAGO TITLE COMPANY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$0.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCommunity Property with Right of Survivorship
Address1901 GASPAR DR, OAKLAND, CA 94611-2643

Mortgage

Document Number0000164917
DateOct 21, 2022
Instrument2022-164917
Lender
NameCROSSCOUNTRY MORTGAGE LLC
TypeMortgage Company
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueNov 01, 2052

Tax Assessment & Valuation

Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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

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

YearTax BillAssessed Value
2026$2,228,536 (+2%) Land $1,697,932 Building $530,604
2025$25,115.00 (+3.79%)$2,184,840 (+4.04%) Land $1,664,640 Building $520,200
2023$24,198.00 (+675.83%)$2,100,000 Land $1,600,000 Building $500,000
2022$3,119.00

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133342006, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone X
Special Flood Hazard AreaNo
Flood HazardMinimal
500-Year FloodplainNo
Flood Insurance CostPremium on Record
median of 62 individual NFIP policies nearby
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, other causes, Severe Winter Storms, Flooding, Landslides, And Mudslides
Claims By Storm
  • Severe Winter Storms, Flooding, Landslides, And Mudslides, Dec 2022 · 5 claims

Wildfire

Wildfire RiskLow
above 34% of the US · above 20% of California
Wildfire LikelihoodAbout 1 in 2,564 per year
ExposureDirect
burnable vegetation at the parcel

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 316 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
XfinityCable2,000 / 250
Radiate HoldingsCable1,500 / 50
UnwiredFixed Wireless300 / 25
VerizonFixed Wireless300 / 20
AT&TDSL100 / 20

May also be available at this address: T-Mobile USA, AT&T, Sonic Telecom. Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G and 4G LTE

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