Contra Costa County property record for 20 Altamount Dr, Orinda, CA 94563
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 1,690 sqft · built 1948 |
| Lot Size | 0.319 acres (13,900 sqft) |
| Owner | Trust Name on File |
| Last Sale | $635,000 (Aug 2012) |
| Tax Bill | $11,766 (2025) |
| Deeds & Mortgages | Jul 2021 Construction Loan |
| Flood Zone | Zone X (minimal risk) |
| APN | 271-032-004-1 |
| Primary APN | 271-032-004-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,690 sqft Living Area |
| 1st Floor Area | 1,690 sqft |
| Year Built | Built 1948 |
|---|---|
| Effective Year Built | Effective 1980 |
| Lot Area | 13,900 sqft (0.319 acres) |
| Garage Type | Attached |
| Garage Area | 333 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Central |
|---|
| Street Address | 20 ALTAMOUNT DR |
|---|---|
| City | ORINDA |
| State | CA |
| Zip | 94563-4150 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | MORAGA DEL REY #1 POR 12 |
| Legal Subdivision | MORAGA DEL REY 01 |
| Legal Lot Number | 12 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 353001 |
20 Altamount Dr is held in a trust since August 2012.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 20 ALTAMOUNT DR, ORINDA, CA 94563-4150 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 15, 2012 · Amount on File |
| Deed Sale | Aug 15, 2012 · Amount on File |
| Deed Document Number | 2012196489 |
| Prior Transfer Date | Oct 11, 2008 |
| Prior Transfer Doc | 0000234976 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 20 ALTAMOUNT DR, ORINDA, CA 94563-4150 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE ORINDA |
| Name | Verified Name |
|---|---|
| Address | 20 ALTAMOUNT DR, ORINDA, CA 94563-4150 |
| Document Number | 0000210390 |
|---|---|
| Date | Jul 27, 2021 |
| Instrument | 2021-210390 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57104 |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Aug 1, 2051 |
The 2025 property tax bill for 20 Altamount Dr was $11,766.
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 | $868,722 (+2%) Land $715,946 Building $152,776 | |
| 2025 | $11,766.00 | $851,689 Land $701,908 Building $149,781 |
| 2023 | $11,394.00 (+8.62%) | $818,619 Land $674,653 Building $143,966 |
| 2022 | $10,490.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 20 Altamount Dr in Zone X, an area of minimal flood risk, though there have been 6 flood claims nearby since 1982.
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 | 1 in force |
| Nearby Flood Claims | 6 (1982–1998) |
| Claims Outside the SFHA | 1 of 6 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
| 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.
Wildfire risk around 20 Altamount Dr is moderate, ranking above 60% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 60% of the US · lower than 64% of California |
|---|---|
| Wildfire Likelihood | 0.2% 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 332 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 |
May also be available: Etheric Networks.
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