Contra Costa County property record for 21 Miramonte Ct, Walnut Creek, CA 94597
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 2,208 sqft · built 1948 |
| Lot Size | 0.303 acres (13,200 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,246,500 (Oct 2016) |
| Tax Bill | $16,944 (2025) |
| Deeds & Mortgages | Oct 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 175-161-008-8 |
| Primary APN | 175-161-008-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 2,208 sqft Living Area |
| 1st Floor Area | 2,208 sqft |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1970 |
| Lot Area | 13,200 sqft (0.303 acres) |
| Garage Type | Attached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | Central |
|---|
| Street Address | 21 MIRAMONTE CT |
|---|---|
| City | WALNUT CREEK |
| State | CA |
| Zip | 94597-3412 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R15 |
| Legal Description | HIGHLAND MANOR #1 LOT 4 BLK 2 |
| Legal Subdivision | HIGHLAND MANOR 01 |
| Legal Block | 2 |
| Legal Lot Number | 4 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3006 |
| Census Tract | 340004 |
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 | 21 MIRAMONTE CT, WALNUT CREEK, CA 94597-3412 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 3, 2016 · Amount on Record |
| Deed Sale | Oct 3, 2016 · Amount on Record |
| Prior Sale | Oct 28, 2015 · Amount on Record |
| Deed Document Number | 2016204177 |
| Last Transfer Date | Oct 9, 2017 |
| Transfer Doc | 0000194364 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 23, 2017 |
| Property Address | 21 MIRAMONTE CT, WALNUT CREEK, CA 94597-3412 |
| Document Number | 0000194364 |
| Instrument Date | Oct 9, 2017 |
| Instrument | 194364 |
| Transaction Type | Transfer |
| Record Updated | Oct 27, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 21 MIRAMONTE CT WALNUT CREEK CA 945973412, WALNUT CREEK, CA 94597-3412 |
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 | $1,475,595 (+2%) Land $1,120,459 Building $355,136 | |
| 2025 | $16,944.00 (+3.84%) Homeowner's exemption | $1,446,663 (+4.04%) Land $1,098,490 Building $348,173 |
| 2023 | $16,317.00 (+2.28%) Homeowner's exemption | $1,390,489 Land $1,055,835 Building $334,654 |
| 2022 | $15,953.00 |
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 | 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 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 346 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Sonic Telecom, Verizon.
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