Contra Costa County property record for 4 Lost Valley Dr, Orinda, CA 94563
| Property Type | Single Family Home |
|---|---|
| Details | 7 bd · 5 ba · 3,526 sqft · built 1963 |
| Lot Size | 0.574 acres (25,000 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $11,146 (2025) |
| Deeds & Mortgages | Aug 2017 Transfer Aug 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 272-200-014-4 |
| Primary APN | 272-200-014-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 7 Beds |
|---|---|
| Full Baths | 5 Baths |
| Total Rooms | 14 Rooms |
| Stories | 1 Story |
| Building Area | 3,526 sqft Living Area |
| Gross Area | 2,726 sqft |
| 1st Floor Area | 2,726 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Architectural Style | Ranch |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Wood Shingle |
| Lot Area | 25,000 sqft (0.574 acres) |
| Garage Type | Detached |
| Garage Area | 484 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | Deck Area |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4 LOST VALLEY DR |
|---|---|
| City | ORINDA |
| State | CA |
| Zip | 94563-3910 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOST VALLEY ESTATES POR LTS 7 & 10 |
| Legal Subdivision | LOST VALLEY ESTATES |
| Legal Lot Number | 7,10 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 353001 |
4 Lost Valley Dr is owned and occupied by two individuals who acquired it in November 1997.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4 LOST VALLEY DR, ORINDA, CA 94563-3910 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants in Common |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Aug 4, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Aug 4, 2017 | Quit Claim Deed, Transfer Quitclaim |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Nov 6, 1997 |
| Transfer Doc | 0000218149 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Aug 4, 2017 |
| Property Address | 4 LOST VALLEY DR, ORINDA, CA 94563-3910 |
| Document Number | 0000140531 |
| Instrument Date | Jun 5, 2017 |
| Instrument | 140531 |
| Transaction Type | Transfer |
| Record Updated | Aug 9, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4 LOST VALLEY DR ORINDA CA 945633910, ORINDA, CA 94563-3910 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Aug 4, 2017 |
| Property Address | 4 LOST VALLEY DR, ORINDA, CA 94563-3910 |
| Document Number | 0000140530 |
| Instrument Date | May 31, 2017 |
| Instrument | 140530 |
| Transaction Type | Transfer |
| Record Updated | Aug 9, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4 LOST VALLEY DR ORINDA CA 945633910, ORINDA, CA 94563-3910 |
The 2025 property tax bill for 4 Lost Valley Dr was $11,146.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Orinda City |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Orinda Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $777,134 (+2%) Land $353,656 Building $423,478 | |
| 2025 | $11,146.00 | $761,897 Land $346,722 Building $415,175 |
| 2023 | $10,812.00 (+0.86%) | $732,313 Land $333,259 Building $399,054 |
| 2022 | $10,720.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4 Lost Valley 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 |
| 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.
Wildfire risk around 4 Lost Valley Dr is high, ranking above 70% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 70% of the US · above 45% of California |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 84 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 1,200 / 35 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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