San Francisco City property record for 4048 21st St, San Francisco, CA 94114
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,125 sqft · built 1940 |
| Lot Size | 0.001 acres (22 sqft) |
| Owner | Individual Name on File |
| Last Sale | $3,000,000 (Nov 2021) |
| Tax Bill | $35,614 (2025) |
| Deeds & Mortgages | Nov 2021 Sale & Mortgage |
| APN | 2751-007D |
| Primary APN | 2751-007D |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 2,125 sqft Living Area |
| Gross Area | 2,665 sqft |
| 1st Floor Area | 2,125 sqft |
| Basement Area | 540 sqft |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Construction Type | Frame |
| Lot Area | 22 sqft (0.001 acres) |
| Lot Dimensions | 90 ft deep x 25 ft wide |
| Street Address | 4048 21ST ST |
|---|---|
| City | SAN FRANCISCO |
| State | CA |
| Zip | 94114-2807 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RH2 |
| Legal Description | MAP B3 10 |
| Legal Subdivision | HORNERS ADD BL 191 |
| Legal Block | 2751 |
| Legal Lot Number | 7D |
| Jurisdiction | SAN FRANCISCO CA |
| Township / Civil Division | WESTERN ADDITION-BUENA VISTA-EUREKA VALLEY |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 20500 |
4048 21st St is owned and occupied by an individual who bought it in November 2021.
Source: San Francisco City records, as of September 8, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4048 21ST ST, SAN FRANCISCO, CA 94114-2807 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 Sale | Nov 16, 2021 · Amount on File |
| Deed Sale | Nov 16, 2021 · Amount on File |
| Prior Sale | May 24, 1995 · Amount on File |
| Deed Document Number | 2021170748 |
| Prior Transfer Date | May 30, 1997 |
| Prior Transfer Doc | 0000169456 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SAN FRANCISCO CA |
| Recording Date | Nov 16, 2021 |
| Property Address | 4048 21ST ST, SAN FRANCISCO, CA 94114-2807 |
| Document Number | 2021170748 |
| Instrument Date | Nov 10, 2021 |
| Instrument | 2021170748 |
| Transaction Type | Transfer |
| Record Updated | Dec 9, 2021 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $22,500.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4048 21ST ST, SAN FRANCISCO, CA 94114-2807 |
| Document Number | 2021170749 |
|---|---|
| Date | Nov 16, 2021 |
| Instrument | 2021170749 |
| Name | BANK OF THE WEST |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Dec 1, 2051 |
The 2025 property tax bill for 4048 21st St was $35,614 with a homeowner's exemption, up 2.7% 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 | $3,247,290 (+10.08%) Land $2,273,103 Building $974,187 | |
| 2025 | $35,614.00 (+2.7%) Homeowner's exemption | $2,950,000 Land $2,065,000 Building $885,000 |
| 2024 | $34,678.00 (-5.56%) | |
| 2023 | $36,720.00 (+1.84%) Homeowner's exemption | $3,060,000 Land $2,142,000 Building $918,000 |
| 2022 | $36,058.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA has no flood map on file for 4048 21st St; 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 4048 21st 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 1,850 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 |
| Sonic Telecom Fiber | 1,000 / 1,000 |
| Unwired Fixed Wireless | 300 / 25 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: AT&T, GeoLinks, Google Fiber, T-Mobile, Verizon.
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