San Francisco City property record for 425 Harkness Ave, San Francisco, CA 94134
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,055 sqft · built 1911 |
| Lot Size | 0.001 acres (25 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $5,429 (2025) |
| APN | 6178-045 |
| Primary APN | 6178-045 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,055 sqft Living Area |
| Gross Area | 1,155 sqft |
| 1st Floor Area | 1,055 sqft |
| Basement Area | 100 sqft |
| Year Built | Built 1911 |
|---|---|
| Effective Year Built | Effective 1911 |
| Architectural Style | Traditional |
| Exterior Material | Wood |
| Construction Type | Frame |
| Roof Material | Tar & Gravel |
| Lot Area | 25 sqft (0.001 acres) |
| Lot Dimensions | 100 ft deep x 25 ft wide |
| Heating System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 425 HARKNESS AVE |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94134-2150 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RH1 |
| Legal Description | MAP 1 PG 241 BLK 38 LOT 28 |
| Legal Subdivision | REIS TRACT |
| Legal Block | 6178 |
| Legal Lot Number | 45 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | MERCED-MCLAREN |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 26402 |
425 Harkness Ave is owner-occupied and held in a trust since January 2011.
Source: San Francisco City records, as of September 8, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 425 HARKNESS AVE, SAN FRANCISCO, CA 94134-2150 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable 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 Transfer Date | Jan 25, 2011 |
| Transfer Doc | K388/0167 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 425 Harkness Ave was $5,429 with a homeowner's exemption, up 2.9% from the year before.
Source: San Francisco City assessment roll, as of September 8, 2026
| Type | Name |
|---|---|
| State | California |
| County / Municipality | San Francisco City |
| Unified School District | San Francisco Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $405,802 (+2.01%) Land $271,811 Building $133,991 | |
| 2025 | $5,429.00 (+2.92%) Homeowner's exemption | $397,799 Land $266,456 Building $131,343 |
| 2024 | $5,275.00 (+1.72%) | |
| 2023 | $5,186.00 (+2.25%) Homeowner's exemption | $382,354 Land $256,110 Building $126,244 |
| 2022 | $5,072.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 425 Harkness Ave.
Source: FEMA National Flood Hazard Layer
| FEMA Flood Zone | Not on file |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
The area around 425 Harkness Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | SFPUC CITY DISTRIBUTION DIVISION serves 848,019 people · EPA ID CA3810011 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Mar 2023 |
| 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.
Source: FCC Broadband Data Collection, based on 1,409 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Astound Broadband, GeoLinks.
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