Contra Costa County property record for 55 Underhill Rd, Orinda, CA 94563
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,680 sqft · built 1974 |
| Lot Size | 0.244 acres (10,625 sqft) |
| Owner | Company Name on File |
| Tax Bill | $5,135 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 273-065-047-6 |
| Primary APN | 273-065-047-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,680 sqft Living Area |
| 1st Floor Area | 1,116 sqft |
| Basement Area | 564 sqft |
| Year Built | Built 1974 |
|---|---|
| Effective Year Built | Effective 1975 |
| Lot Area | 10,625 sqft (0.244 acres) |
| Garage Type | Attached |
| Garage Area | 312 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 55 UNDERHILL RD |
|---|---|
| City | ORINDA |
| State | CA |
| Zip | 94563-3305 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | OAK SPRINGS #1 LOTS 39,40&POR 38 BLK A |
| Legal Subdivision | OAK SPGS 01 |
| Legal Block | A |
| Legal Lot Number | 39,40 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 353001 |
Source: Contra Costa County assessment roll, 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 | Company Name on File |
|---|---|
| Mailing Address | 55 UNDERHILL RD, ORINDA, CA 94563-3305 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jun 24, 2000 |
| Transfer Doc | 0000151476 |
| Record Updated | Sep 20, 2026 |
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 | $380,951 (+2%) Land $169,793 Building $211,158 | |
| 2025 | $5,135.00 (+3.95%) Homeowner's exemption | $373,482 (+4.04%) Land $166,464 Building $207,018 |
| 2023 | $4,940.00 (+1.21%) Homeowner's exemption | $358,980 Land $160,000 Building $198,980 |
| 2022 | $4,881.00 |
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 |
| Nearby Flood Policies | 9 in force |
| Nearby Flood Claims | 22 (1978–2005) |
| Claims Outside the SFHA | 2 of 22 |
| 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 | Moderate above 47% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.09% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 312 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Communications, LLC., Unwired.
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