Alameda County property record for 21 San Mateo Rd, Berkeley, CA 94707
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2.5 ba · 2,669 sqft · built 1925 |
| Lot Size | 0.212 acres (9,223 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $10,342 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 61-2578-16 |
| Primary APN | 61-2578-16 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 1 Story |
| Building Area | 2,669 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1932 |
| Architectural Style | L-Shape |
| Construction Type | Wood |
| Lot Area | 9,223 sqft (0.212 acres) |
| Heating System | Forced Air with A/C |
|---|
| Street Address | 21 SAN MATEO RD |
|---|---|
| City | BERKELEY |
| State | CA |
| Zip | 94707-2015 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: 00016 BLK: AR: 0061 PAGE: 2578 |
| Legal Subdivision | BERKELEY SQUARE |
| Legal Block | 4 |
| Legal Lot Number | 11&12 |
| Jurisdiction | ALAMEDA CA |
| Township / Civil Division | BERKELEY |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 421200 |
Source: Alameda County records, as of August 5, 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 Record |
|---|---|
| Mailing Address | 21 SAN MATEO RD, BERKELEY, CA 94707-2015 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jul 8, 2013 |
| Transfer Doc | 0000237246 |
| Record Updated | Sep 20, 2026 |
Source: Alameda County assessment roll, as of August 5, 2026
| Type | Name |
|---|---|
| State | California |
| County | Alameda County |
| Municipality | Berkeley City |
| Unified School District | Berkeley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $157,499 (-2.34%) Land $65,811 Building $98,688 | ||
| 2025 | $10,342.00 (+24.18%) Homeowner's exemption | $161,274 (+4.04%) Land $64,521 Building $96,753 | |
| 2023 | $8,328.00 Homeowner's exemption | $155,012 Land $62,016 Building $92,996 | $2,297,880 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective May 25, 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 | 5 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 94% of the US · lower than 96% 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 972 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: AT&T, GeoLinks, T-Mobile, Verizon.
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