Contra Costa County property record for 1815 Castle Gate Rd, Walnut Creek, CA 94595
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 3,684 sqft · built 1998 |
| Lot Size | 1.07 acres (47,044 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $2,175,000 (Apr 2023) |
| Tax Bill | $25,977 (2025) |
| Deeds & Mortgages | Apr 2026 Mortgage May 2024 Line of Credit + 4 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 184-500-011-4 |
| Primary APN | 184-500-011-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 13 Rooms |
| Stories | 1 Story |
| Building Area | 3,684 sqft Living Area |
| 1st Floor Area | 2,309 sqft |
| Basement Area | 986 sqft |
| Year Built | Built 1998 |
|---|---|
| Effective Year Built | Effective 1999 |
| Lot Area | 47,044 sqft |
| Garage Type | Attached |
| Garage Area | 705 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 1815 CASTLE GATE RD |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94595-2351 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20 |
| Legal Description | T05742 L0011 B |
| Legal Subdivision | SUBDIVISION 5742 |
| Legal Tract | 05742 |
| Legal Lot Number | 11 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 334200 |
Source: Contra Costa County records, as of July 14, 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 Record |
|---|---|
| Mailing Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Date | Document |
|---|---|
| Apr 27, 2026 | Deed of Trust, Mortgage · Conventional Mortgage STAR ONE CREDIT UNION |
| May 8, 2024 | Deed of Trust, Mortgage · Line of Credit THE POLICE CU |
| May 23, 2023 | Intrafamily Transfer, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Apr 13, 2023 | Grant Deed, Transfer ATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY |
| Apr 13, 2023 | Correction Deed · Commercial Mortgage PAUL W HISS 2001 TRUST |
| Jan 7, 2020 | Quit Claim Deed, Transfer NOT AVAILABLE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 13, 2023 · Amount on Record |
| Deed Sale | Apr 13, 2023 · Amount on Record |
| Prior Sale | Feb 14, 2003 · Amount on Record |
| Deed Document Number | 202334641 |
| Last Transfer Date | May 17, 2023 |
| Transfer Doc | 0000048622 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 27, 2026 |
| Property Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000042971 |
| Instrument Date | Apr 20, 2026 |
| Instrument | 202642971 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | NONE LISTED ON DOCUMENT |
| Name | Verified Name |
|---|---|
| Relationship | Community Property, 149 |
| Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000042971, |
|---|---|
| Date | Apr 27, 2026 |
| Instrument | 202642971 |
| Name | STAR ONE CREDIT UNION |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | May 1, 2056 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.5% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Transaction Type | Mortgage |
| Record Updated | May 17, 2024 |
| Title Company | E-PLACER TITLE, PLACER TITLE |
| Name | Verified Name |
|---|---|
| Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000043342 |
|---|---|
| Date | May 8, 2024 |
| Instrument | 2024-043342 |
| Name | THE POLICE CU |
|---|---|
| Type | Credit Union |
| Address | SAN BRUNO, CA 94066 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | May 15, 2054 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 23, 2023 |
| Property Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000048622 |
| Map Reference | MB 257 PG 26 |
| Instrument Date | May 17, 2023 |
| Instrument | 2023-048622 |
| Transaction Type | Transfer |
| Record Updated | Jun 1, 2023 |
| Title Company | ATLANTIS TITLE COMPANY, ATLAS 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 | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000048623 |
|---|---|
| Date | May 23, 2023 |
| Instrument | 2023-048623 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 1, 2053 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 13, 2023 |
| Property Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000034641 |
| Map Reference | MB 257 PG 26 |
| Instrument Date | Apr 9, 2023 |
| Instrument | 2023-034641 |
| Transaction Type | Transfer |
| Record Updated | Apr 25, 2023 |
| Title Company | ATLANTIS TITLE COMPANY, ATLAS TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3674 NORTHRIDGE DR, CONCORD, CA 94518-1542 |
| Document Type | Correction Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Apr 13, 2023 |
| Property Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000034640 |
| Map Reference | MB 257 PG 26 |
| Instrument Date | Apr 9, 2023 |
| Instrument | 2023-034640 |
| Record Updated | Jun 7, 2023 |
| Title Company | ATLAS TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 39311 SPYGLASS PL, DAVIS, CA 95616-7009 |
| Document Number | 0000034642 |
|---|---|
| Date | Apr 13, 2023 |
| Instrument | 2023-034642 |
| Name | PAUL W HISS 2001 TRUST |
|---|---|
| Type | Private Party |
| Address | 936 SCOTT ST, PALO ALTO, CA 94301 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 7, 2020 |
| Property Address | 1815 CASTLE GATE RD, WALNUT CREEK, CA 94595-2351 |
| Document Number | 0000002662 |
| Instrument Date | Dec 19, 2019 |
| Instrument | 2662 |
| Transaction Type | Transfer |
| Record Updated | Jan 20, 2020 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1815 CASTLE GATE RD WALNUT CREEK CA 945952351, WALNUT CREEK, CA 94595-2351 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Walnut Creek City |
| 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 | $2,308,127 (+2%) Land $1,379,570 Building $928,557 | |
| 2025 | $25,977.00 (+64.9%) | $2,262,870 (+69.33%) Land $1,352,520 Building $910,350 |
| 2023 | $15,753.00 (+2.27%) Homeowner's exemption | $1,336,395 Land $696,039 Building $640,356 |
| 2022 | $15,403.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 8 (10% premium discount) |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 57 (1982–2005) |
| Claims Outside the SFHA | 3 of 57 |
| Most Recent Claim | Dec 2005 · Severe Storms, Flooding, Mudslides, And Landslides |
| Claims by Event |
|
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: 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 | 0.02% 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 380 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
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