| Primary address | 421 Union Street, San Francisco |
| Zip code | 94133 |
| County | San Francisco |
| Neighborhood | Telegraph Hill |
| Parcel ID | 0115-052 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Property tax | $2,343 |
| Building sqft | 4,650 |
| Building class | Apartments 5 to 14 Units (A5) |
| Acreage | 0.035 |
| Rooms | 26 |
| Units | 9 |
| Year built | 1906 |
| Stories | 3 |
| Zoning district | Register |
| School district | San Francisco Unified School District |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
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421 Union Street, San Francisco, CA 94133 was built in 1906 and has a total of 4,650 square feet.
What is the assessed value of 421 Union Street, San Francisco, CA 94133 and the property tax paid?Assessed at $198,133, the tax amount paid for 421 Union Street, San Francisco, CA 94133 is $2,343.
When was 421 Union Street, San Francisco, CA 94133 last sold?421 Union Street, San Francisco, CA 94133 was last sold in 05/02/2022.
How many residential units does this building have?This building has 9 residential unit(s).
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Create a free account to view the complete sales history for 421 Union Street, San Francisco, including title documents, transfer conditions, mortgages and liens.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 421 Union Street, San Francisco, CA 94133. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year: | 2025-2026 |
| Property tax | $2,343 |
| Market value | $198,133 |
Here's the assessment & property tax history for 421 Union Street, San Francisco, including the evolution of the total tax rate and corresponding property tax.
| Year | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|
| 2025-2026 | $198,133 | 1.1827 | $2,343 | +2.98% |
| 2024-2025 | $194,251 | 1.1714 | $2,275 | +1.45% |
| 2023-2024 | $190,445 | 1.1777 | $2,243 | +1.82% |
| 2022-2023 | $186,715 | 1.1797 | $2,203 | +1.74% |
| 2021-2022 | $183,057 | 1.18248 | $2,165 | -0.29% |
Access a detailed real estate market overview of San Francisco so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in San Francisco and compare it to other neighborhoods in San Francisco County.
Check out recently sold homes in San-Francisco and see how their prices compare.
| Total population | 23,804 |
| Median age | 45.5 |
| Average household income | $153,281 |
| Family households | 39.1% |
| Occupied housing units | 12,653 |
| Owner occupied units | 16.5% |
| Average number of people per household | 1.87 |
| Median year structure built | 1938 |
| Median value for units with a mortgage | $1,603,200 |
| Median value for units without a mortgage | $1,517,100 |
Create a free account to unlock extended information for 421 Union Street, San Francisco, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
| Fire hazard zone | See more on map |
| Faults and tsunami inundation zone map | Register |
| Landslides and liquefaction map | Register |
| Crime incidents map | Register |
Access the detailed traffic volume map for 421 Union Street, San Francisco to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
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Here are the neighbors for 421 Union Street, San Francisco.