San Francisco City property record for 42 Keystone Way, San Francisco, CA 94127
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,650 sqft · built 1926 |
| Lot Size | 0.001 acres (38 sqft) |
| Owner | Company Name on File |
| Tax Bill | $4,654 (2025) |
| APN | 3282-022 |
| Primary APN | 3282-022 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 1,650 sqft Living Area |
| Gross Area | 2,225 sqft |
| 1st Floor Area | 1,650 sqft |
| Basement Area | 575 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1926 |
|---|---|
| Effective Year Built | Effective 1926 |
| Architectural Style | Bungalow |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Tar & Gravel |
| Lot Area | 38 sqft (0.001 acres) |
| Heating System | Gravity Furnace |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 42 KEYSTONE WAY |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94127-2718 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RH1D |
| Legal Subdivision | MT DAVIDSON MANOR |
| Legal Block | 3282 |
| Legal Lot Number | 22 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | MERCED-MCLAREN |
| Census Block Group | 3 |
| Census Block | 3011 |
| Census Tract | 31000 |
42 Keystone Way is owned by a company that acquired it in December 2005 and is owner-occupied.
Source: San Francisco City records, as of September 8, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 42 KEYSTONE WAY, SAN FRANCISCO, CA 94127-2718 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Borrower in Default |
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 | Dec 23, 2005 |
| Transfer Doc | J047/0742 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 42 Keystone Way was $4,654 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 | $338,968 (+2.02%) Land $145,037 Building $193,931 | |
| 2025 | $4,654.00 (+2.9%) Homeowner's exemption | $332,248 Land $142,161 Building $190,087 |
| 2024 | $4,523.00 (+1.78%) | |
| 2023 | $4,444.00 (+2.33%) Homeowner's exemption | $319,350 Land $136,642 Building $182,708 |
| 2022 | $4,343.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 42 Keystone Way; 1 flood insurance policy is in force nearby.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 1 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.
The area around 42 Keystone Way 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 1,270 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Astound Broadband, AT&T, Etheric Networks, Sonic Telecom, Unwired.
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