Contra Costa County property record for 21 Birch Dr, Walnut Creek, CA 94597
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,636 sqft · built 1953 |
| Lot Size | 0.287 acres (12,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,100,000 (Sep 2022) |
| Tax Bill | $13,671 (2025) |
| Deeds & Mortgages | Sep 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 172-051-004-7 |
| Primary APN | 172-051-004-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,636 sqft Living Area |
| 1st Floor Area | 1,636 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1953 |
| Lot Area | 12,500 sqft (0.287 acres) |
| Garage Type | Attached |
| Garage Area | 441 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 21 BIRCH DR |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94597-2102 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R12 |
| Legal Description | HEDGEWOOD PARK #2 LOT 10 |
| Legal Subdivision | HEDGEWOOD PARK |
| Legal Lot Number | 10 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 4 |
| Census Block | 4008 |
| Census Tract | 338203 |
21 Birch Dr is owned and occupied by two individuals who bought it in September 2022.
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 Individual Names on File |
|---|---|
| Mailing Address | 21 BIRCH DR, WALNUT CREEK, CA 94597-2102 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 1, 2022 · Amount on File |
| Deed Sale | Sep 1, 2022 · Amount on File |
| Deed Document Number | 2022134934 |
| Prior Transfer Date | May 19, 1995 |
| Prior Transfer Doc | 0000082554 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 1, 2022 |
| Property Address | 21 BIRCH DR, WALNUT CREEK, CA 94597-2102 |
| Document Number | 0000134934 |
| Map Reference | MB 46 PG 28&29 |
| Instrument Date | Aug 22, 2022 |
| Instrument | 2022-134934 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 1743 ROCKSPRING PL, WALNUT CREEK, CA 94596-6163 |
| Document Number | 0000134935 |
|---|---|
| Date | Sep 1, 2022 |
| Instrument | 2022-134935 |
| Name | ALLY BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Sep 1, 2052 |
The 2025 property tax bill for 21 Birch Dr was $13,671 with a homeowner's exemption.
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 | $1,167,328 (+2%) Land $955,087 Building $212,241 | |
| 2025 | $13,671.00 Homeowner's exemption | $1,144,440 Land $936,360 Building $208,080 |
| 2023 | $13,241.00 (+600.58%) | $1,100,000 Land $900,000 Building $200,000 |
| 2022 | $1,890.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 21 Birch Dr in Zone X, an area of minimal flood risk.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 2 in force |
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.
The area around 21 Birch Dr has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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.
Source: FCC Broadband Data Collection, based on 302 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Sonic Telecom.
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