Contra Costa County property record for 1 Corwin Dr, Alamo, CA 94507
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,635 sqft · built 1959 |
| Lot Size | 0.62 acres (27,007 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $2,330,000 (May 2020) |
| Tax Bill | $28,557 (2025) |
| Deeds & Mortgages | Oct 2021 Transfer May 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 198-131-030-1 |
| Primary APN | 198-131-030-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,635 sqft Living Area |
| 1st Floor Area | 2,635 sqft |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1985 |
| Lot Area | 27,007 sqft (0.62 acres) |
| Garage Type | Attached |
| Garage Area | 552 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 1 CORWIN DR |
|---|---|
| City | ALAMO |
| State | CA |
| Zip | 94507-2103 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20 |
| Legal Description | HEMME SUBN POR LOTS 12 & 13 .62 AC |
| Legal Subdivision | HEMME SUB |
| Legal Lot Number | 12,13 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 345204 |
Source: Contra Costa County records · APN 198-131-030-1
Assessment roll updated July 14, 2026 · Last verified August 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 1 CORWIN DR, ALAMO, CA 94507-2103 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Oct 27, 2021 | Intrafamily Transfer, Transfer |
| May 14, 2020 | Grant Deed, Transfer BANK OF AMERICA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 14, 2020 · Amount on Record |
| Deed Sale | May 14, 2020 · Amount on Record |
| Prior Sale | Apr 23, 2013 · Amount on Record |
| Deed Document Number | 202092218 |
| Last Transfer Date | Sep 28, 2021 |
| Transfer Doc | 0000301479 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 27, 2021 |
| Property Address | 1 CORWIN DR, ALAMO, CA 94507-2103 |
| Document Number | 0000301479 |
| Map Reference | VOL C PG 71 |
| Instrument Date | Sep 28, 2021 |
| Instrument | 2021-301479 |
| Transaction Type | Transfer |
| Record Updated | Aug 01, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 1 CORWIN DR, ALAMO, CA 94507-2103 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 14, 2020 |
| Property Address | 1 CORWIN DR, ALAMO, CA 94507-2103 |
| Document Number | 0000092218 |
| Instrument Date | Apr 20, 2020 |
| Instrument | 92218 |
| Transaction Type | Transfer |
| Record Updated | May 22, 2020 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $2,563.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 1 CORWIN DR ALAMO CA 945072103, ALAMO, CA 94507-2103 |
| Document Number | 92219 |
|---|---|
| Date | May 14, 2020 |
| Instrument | 92219 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | 101 S TRYON ST, CHARLOTTE, NC 28280-0002 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | May 13, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.25% |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | San Ramon Valley Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,598,708 (+2%) Land $1,338,620 Building $1,260,088 | |
| 2025 | $28,557.00 (+3.61%) Homeowner's exemption | $2,547,754 (+4.04%) Land $1,312,373 Building $1,235,381 |
| 2023 | $27,563.00 (+0.74%) Homeowner's exemption | $2,448,823 Land $1,261,413 Building $1,187,410 |
| 2022 | $27,360.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 11 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 11 in force |
| Nearby Flood Claims | 5 (1993–2012) |
| Claims Outside the SFHA | 3 of 5 |
| Most Recent Claim | Dec 2012 · rainfall accumulation |
| Wildfire Risk | Low lower than 62% of the US · lower than 77% of California |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Unwired.
Based on FCC filings for 130 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | EAST BAY MUD serves 1,468,000 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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