Contra Costa County property record for 20 Park Ave, Walnut Creek, CA 94595
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,781 sqft · built 1976 |
| Lot Size | 0.236 acres (10,280 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $1,440,000 (May 2023) |
| Tax Bill | $17,584 (2025) |
| Deeds & Mortgages | Jun 2026 Sale May 2023 Refinance + 3 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 184-302-036-1 |
| Primary APN | 184-302-036-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,781 sqft Living Area |
| 1st Floor Area | 1,781 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1977 |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 10,280 sqft (0.236 acres) |
| Garage Type | Attached |
| Garage Area | 340 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 20 PARK AVE |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94595-1610 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10 |
| Legal Description | PARCEL MAP 12 PG 50 PCL A |
| Legal Subdivision | PARCEL MAP |
| Legal Tract | 12PM50 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 5 |
| Census Block | 5001 |
| Census Tract | 334200 |
20 Park Ave is owner-occupied and held in a trust since May 2023.
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 Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jun 4, 2026 | Grant Deed, Transfer NONE LISTED ON DOCUMENT |
| May 16, 2023 | Intrafamily Transfer, Transfer · Stand-Alone Refinance THE UNIVERISTY OF CALIFORNIA |
| May 16, 2023 | Grant Deed, Transfer NOT AVAILABLE, HOMELIGHT TITLE & ESCROW CO |
| Apr 16, 2021 | Intrafamily Transfer, Transfer OLD REPUBLIC TITLE COMPANY |
| Apr 16, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 16, 2023 · Amount on File |
| Deed Sale | May 16, 2023 · Amount on File |
| Deed Document Number | 202345788 |
| Prior Transfer Date | Apr 14, 2021 |
| Prior Transfer Doc | 0000115692 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 4, 2026 |
| Property Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Number | 0000058641 |
| Instrument Date | Jun 3, 2026 |
| Instrument | 202658641 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Trust |
| Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 16, 2023 |
| Property Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Number | 0000045789 |
| Map Reference | MB 12 PG 50 |
| Instrument Date | May 8, 2023 |
| Instrument | 2023-045789 |
| Transaction Type | Transfer |
| Record Updated | May 25, 2023 |
| Title Company | NOT AVAILABLE, HOMELIGHT TITLE & ESCROW CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Number | 0000045791 |
|---|---|
| Date | May 16, 2023 |
| Instrument | 2023-045791 |
| Name | THE UNIVERISTY OF CALIFORNIA |
|---|---|
| Type | Non-Lending Institution |
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2053 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 16, 2023 |
| Property Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Number | 0000045788 |
| Map Reference | MB 12 PG 50 |
| Instrument Date | May 8, 2023 |
| Instrument | 2023-045788 |
| Transaction Type | Transfer |
| Record Updated | May 25, 2023 |
| Title Company | NOT AVAILABLE, HOMELIGHT TITLE & ESCROW CO |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 16, 2021 |
| Property Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Number | 0000115694 |
| Map Reference | MB 12 PG 50 |
| Instrument Date | Apr 14, 2021 |
| Instrument | 2021-115694 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | PO BOX 412, ANGELS CAMP, CA 95222-0412 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 16, 2021 |
| Property Address | 20 PARK AVE, WALNUT CREEK, CA 94595-1610 |
| Document Number | 0000115692 |
| Map Reference | MB 12 PG 50 |
| Instrument Date | Apr 14, 2021 |
| Instrument | 2021-115692 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | PO BOX 412, ANGELS CAMP, CA 95222-0412 |
| Document Number | 0000115693 |
|---|---|
| Date | Apr 16, 2021 |
| Instrument | 2021-115693 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2051 |
The 2025 property tax bill for 20 Park Ave was $17,584.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Walnut Creek Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,528,139 (+2%) Land $1,114,268 Building $413,871 | |
| 2025 | $17,584.00 | $1,498,176 Land $1,092,420 Building $405,756 |
| 2023 | $5,531.00 (+2.03%) | $400,126 Land $127,576 Building $272,550 |
| 2022 | $5,421.00 |
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.
FEMA maps place 20 Park Ave in Zone X, an area of moderate flood risk, though there have been 2 flood claims nearby since 1997.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 2 (1997–2017) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Aug 2017 · other causes |
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 risk around 20 Park Ave is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| 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, 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.
Source: FCC Broadband Data Collection, based on 396 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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