San Francisco City property record for 4 18th Ave, San Francisco, CA 94121
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,552 sqft · built 1914 |
| Lot Size | 0.001 acres (30 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $19,411 (2025) |
| APN | 1341-013 |
| Primary APN | 1341-013 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 3 Stories |
| Building Area | 2,552 sqft Living Area |
| Gross Area | 2,792 sqft |
| 1st Floor Area | 2,552 sqft |
| Basement Area | 240 sqft |
| Fireplaces | 2 Fireplaces |
| Fireplace | Fireplace |
| Year Built | Built 1914 |
|---|---|
| Effective Year Built | Effective 1914 |
| Architectural Style | Traditional |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 30 sqft (0.001 acres) |
| Lot Dimensions | 120 ft deep x 25 ft wide |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4 18TH AVE |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94121-1320 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RH1 |
| Legal Description | BLK 55 |
| Legal Subdivision | OUTSIDE LAND BL 55 |
| Legal Block | 1341 |
| Legal Lot Number | 13 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | RICHMOND-PRESIDIO-MARINA |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 42800 |
Source: San Francisco City records, as of September 8, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 4 18TH AVE, SAN FRANCISCO, CA 94121-1320 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Sep 25, 2024 |
| Transfer Doc | 0000076225 |
| Record Updated | Oct 29, 2026 |
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 | $1,611,714 (+2.01%) Land $901,880 Building $709,834 | |
| 2025 | $19,411.00 (+6.8%) | $1,580,014 (+4.04%) Land $884,156 Building $695,858 |
| 2024 | $18,175.00 (+1.46%) | |
| 2023 | $17,914.00 (+1.82%) Homeowner's exemption | $1,518,705 Land $849,839 Building $668,866 |
| 2022 | $17,593.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 97% of the US · lower than 97.8% 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 | 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 294 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Etheric Networks, Sonic Telecom.
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