San Francisco City property record for 491 Harkness Ave, San Francisco, CA 94134
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,111 sqft · built 1946 |
| Lot Size | 0.001 acres (25 sqft) |
| Owner | Individual Name on File |
| Last Sale | $359,000 (Mar 2011) |
| Tax Bill | $6,618 (2025) |
| APN | 6178-025 |
| Primary APN | 6178-025 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,111 sqft Living Area |
| Gross Area | 1,422 sqft |
| 1st Floor Area | 1,111 sqft |
| Basement Area | 311 sqft |
| Year Built | Built 1946 |
|---|---|
| Effective Year Built | Effective 1946 |
| Construction Type | Frame |
| Lot Area | 25 sqft (0.001 acres) |
| Street Address | 491 HARKNESS AVE |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94134-2150 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RH1 |
| Legal Subdivision | REIS TRACT |
| Legal Block | 6178 |
| Legal Lot Number | 25 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | MERCED-MCLAREN |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 26402 |
491 Harkness Ave is owned and occupied by an individual who acquired it in November 2014.
Source: San Francisco City records, as of September 8, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 491 HARKNESS AVE, SAN FRANCISCO, CA 94134-2150 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Mar 29, 2011 · Amount on File |
| Deed Sale | Mar 29, 2011 · Amount on File |
| Prior Sale | Sep 27, 2010 · Amount on File |
| Deed Document Number | 2011156217 |
| Deed Book / Page | 362 / 79 |
| Last Transfer Date | Nov 20, 2014 |
| Transfer Doc | J980676 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 491 Harkness Ave was $6,618 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 | $508,346 (+2%) Land $355,450 Building $152,896 | |
| 2025 | $6,618.00 (+2.92%) Homeowner's exemption | $498,362 Land $348,472 Building $149,890 |
| 2024 | $6,430.00 (+1.68%) | |
| 2023 | $6,324.00 (+2.16%) Homeowner's exemption | $479,012 Land $334,942 Building $144,070 |
| 2022 | $6,190.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 491 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 491 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 1,226 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: GeoLinks, Unwired.
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