San Francisco City property record for 12 Sumner St, San Francisco, CA 94103
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 2 ba · 940 sqft · built 1910 |
| Lot Size | 0 acres (15 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $530,000 (Sep 2002) |
| Tax Bill | $10,547 (2025) |
| Deeds & Mortgages | Jan 2018 Line of Credit |
| APN | 3730-043 |
| Primary APN | 3730-043 |
|---|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 940 sqft Living Area |
| 1st Floor Area | 940 sqft |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Construction Type | Frame |
| Lot Area | 15 sqft |
| Lot Dimensions | 58 ft deep x 25 ft wide |
| Street Address | 12 SUMNER ST |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94103-3920 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RED |
| Legal Description | PART OF LOT 279 |
| Legal Subdivision | 100 VARA LT 279 |
| Legal Block | 3730 |
| Legal Lot Number | 43 |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | SOMA-POTRERO-MISSION BAY |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 17804 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 12 SUMNER ST, SAN FRANCISCO, CA 94103-3920 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 12, 2002 · Amount on Record |
| Deed Sale | Sep 12, 2002 · Amount on Record |
| Deed Document Number | 2002242223 |
| Deed Book / Page | 221 / 10 |
| Last Transfer Date | Dec 28, 2017 |
| Transfer Doc | K568825 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN FRANCISCO CA |
| Recording Date | Jan 22, 2018 |
| Property Address | 12 SUMNER ST, SAN FRANCISCO, CA 94103-3920 |
| Document Number | 0K56800824 |
| Instrument Date | Dec 28, 2017 |
| Instrument | K568824 |
| Transaction Type | Mortgage |
| Record Updated | Mar 1, 2018 |
| Title Company | CHICAGO TITLE PIRT |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 12 SUMNER ST SAN FRANCISCO CA 941033920, SAN FRANCISCO, CA 94103-3920 |
| Document Number | K56800825 |
|---|---|
| Date | Jan 22, 2018 |
| Instrument | K568825 |
| Name | SF FIRE CU |
|---|---|
| Address | SAN FRANCISCO, CA 94118 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Jan 21, 2043 |
| Rate Type | Adjustable Rate |
|---|
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 | $803,057 (+2.01%) Land $469,785 Building $333,272 | |
| 2025 | $10,547.00 (+2.93%) Homeowner's exemption | $787,210 (+4.04%) Land $460,534 Building $326,676 |
| 2024 | $10,247.00 (+1.87%) | |
| 2023 | $10,059.00 (+2.11%) Homeowner's exemption | $756,646 Land $442,651 Building $313,995 |
| 2022 | $9,851.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
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 825 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 2,000 |
| 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: Astound Broadband, GeoLinks, Google Fiber, T-Mobile.
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