San Francisco City property record for 642 20th Ave, #644, San Francisco, CA 94121
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 2 ba · 3,450 sqft · built 1919 |
| Lot Size | 0.001 acres (30 sqft) |
| Owner | Company Name on File |
| Tax Bill | $6,340 (2025) |
| Deeds & Mortgages | Mar 2019 Transfer Feb 2017 Line of Credit |
| APN | 1625-021 |
| Primary APN | 1625-021 |
|---|
| Full Baths | 2 Baths |
|---|---|
| Total Rooms | 12 Rooms |
| Units | 4 Units |
| Stories | 2 Stories |
| Building Area | 3,450 sqft Living Area |
| 1st Floor Area | 3,450 sqft |
| Year Built | Built 1919 |
|---|---|
| Effective Year Built | Effective 1919 |
| Architectural Style | Duplex Single |
| Construction Type | Frame |
| Lot Area | 30 sqft (0.001 acres) |
| Lot Dimensions | 120 ft deep x 25 ft wide |
| Street Address | 642 20TH AVE |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94121-3832 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Local Zoning Code | RH2 |
| Legal Subdivision | OUTSIDE LAND BL 362 |
| Legal Block | 1625 |
| Legal Lot Number | 21 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | RICHMOND-PRESIDIO-MARINA |
| Census Block Group | 3 |
| Census Block | 3007 |
| Census Tract | 47600 |
642 20th Ave, #644, a residential property, is owned by a company and is owner-occupied.
Source: San Francisco City records, as of September 8, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 642 20TH AVE, SAN FRANCISCO, CA 94121-3832 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Mar 27, 2019 | Quit Claim Deed, Transfer ATTORNEY ONLY |
| Feb 10, 2017 | Deed of Trust, Mortgage · Line of Credit CITIBANK |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN FRANCISCO CA |
| Recording Date | Mar 27, 2019 |
| Property Address | 642-644 20TH AVE, SAN FRANCISCO, CA 94121 |
| Document Number | 0K74800302 |
| Instrument Date | Mar 23, 2019 |
| Instrument | K748302 |
| Transaction Type | Transfer |
| Record Updated | Apr 10, 2019 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1779 IVERSON WAY SACRAMENTO CA 958351238, SACRAMENTO, CA 95835-1238 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SAN FRANCISCO CA |
| Property Address | 642-644 20TH AVE, SAN FRANCISCO, CA 94121 |
| Document Number | 0K42800311 |
| Instrument Date | Feb 10, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Aug 18, 2018 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 642 20TH AVE #644 SAN FRANCISCO CA 941213832, 644, SAN FRANCISCO, CA 94121-3832 |
| Document Number | 0K42800311 |
|---|---|
| Date | Mar 31, 2017 |
| Instrument | K428311 |
| Name | CITIBANK |
|---|---|
| Type | Federal Savings Bank |
| Address | O'FALLON, MO 63368-2240 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|
The 2025 property tax bill for 642 20th Ave, #644 was $6,340 with a homeowner's exemption.
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 | $542,625 (+2.01%) Land $346,744 Building $195,881 | |
| 2025 | $6,340.00 Homeowner's exemption | $531,908 Land $339,910 Building $191,998 |
| 2023 | $6,070.00 (+1.83%) Homeowner's exemption | $511,256 Land $326,712 Building $184,544 |
| 2022 | $5,961.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 642 20th Ave, #644.
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 642 20th Ave, #644 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 1,399 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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