San Francisco City property record for 3551 20th St, San Francisco, CA 94110
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 2 ba · 2,106 sqft · built 1900 |
| Lot Size | 0 acres (19 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,640,000 (Sep 2022) |
| Tax Bill | $20,987 (2025) |
| Deeds & Mortgages | Sep 2022 Sale & Mortgage |
| APN | 3609-081 |
| Primary APN | 3609-081 |
|---|
| Full Baths | 2 Baths |
|---|---|
| Total Rooms | 8 Rooms |
| Units | 4 Units |
| Stories | 2 Stories |
| Building Area | 2,106 sqft Living Area |
| 1st Floor Area | 2,106 sqft |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 1900 |
| Architectural Style | Duplex Single |
| Construction Type | Frame |
| Lot Area | 19 sqft |
| Street Address | 3551 20TH ST |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94110-2420 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Local Zoning Code | NC1 |
| Legal Subdivision | MISSION BL 66 |
| Legal Block | 3609 |
| Legal Lot Number | 81 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | MISSION-BERNAL |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 20801 |
3551 20th St, a residential property, is owned and occupied by an individual who bought it in September 2022.
Source: San Francisco City records, as of September 8, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3551 20TH ST, SAN FRANCISCO, CA 94110-2420 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 26, 2022 · Amount on File |
| Deed Sale | Sep 26, 2022 · Amount on File |
| Prior Sale | Aug 13, 1996 · Amount on File |
| Deed Document Number | 202289536 |
| Prior Transfer Date | Apr 14, 2011 |
| Prior Transfer Doc | K378/0048 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN FRANCISCO CA |
| Recording Date | Sep 26, 2022 |
| Property Address | 3549-3551 20TH ST, SAN FRANCISCO, CA 94110 |
| Document Number | 0000089536 |
| Instrument Date | Sep 22, 2022 |
| Instrument | 2022089536 |
| Transaction Type | Transfer |
| Record Updated | Oct 21, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $12,300.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3551 20TH ST, SAN FRANCISCO, CA 94110-2420 |
| Document Number | 0000089537 |
|---|---|
| Date | Sep 26, 2022 |
| Instrument | 2022089537 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Oct 1, 2052 |
The 2025 property tax bill for 3551 20th St was $20,987, up 3% 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 | $1,740,384 (+2%) Land $1,218,269 Building $522,115 | |
| 2025 | $20,987.00 (+2.95%) | $1,706,254 Land $1,194,378 Building $511,876 |
| 2024 | $20,385.00 (+1.52%) | |
| 2023 | $20,080.00 (+254.14%) | $1,640,000 Land $1,148,000 Building $492,000 |
| 2022 | $5,670.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 3551 20th St.
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 3551 20th St 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 1,479 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Astound Broadband Cable | 1,500 / 50 |
| Verizon Fixed Wireless | 1,000 / 75 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: GeoLinks, Google Fiber, Sail Internet, Sonic Telecom, T-Mobile.
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