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301 Union Street, San Francisco, CA 94133 Property Information

301 Union Street, San Francisco, CA 94133 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Neighborhood
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301 Union Street, San Francisco, CA 94133
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Address

Primary address 301 Union Street, San Francisco
Zip code 94133
County San Francisco
Neighborhood Telegraph Hill
Parcel ID 0114-001

Sales & Tax Overview for 301 Union Street, San Francisco

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Property tax $16,292

Lot & Building Information for 301 Union Street, San Francisco

Building sqft 4,809
Building class Apartments 5 to 14 Units (A5)
Acreage 0.037
Rooms 21
Units 6
Year built 1914
Stories 3
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district San Francisco Unified School District

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Other Property Data for 301 Union Street, San Francisco

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About 301 Union Street, San Francisco

What is the year built & the total sq. ft. for 301 Union Street, San Francisco, CA 94133?

301 Union Street, San Francisco, CA 94133 was built in 1914 and has a total of 4,809 square feet.

What is the assessed value of 301 Union Street, San Francisco, CA 94133 and the property tax paid?

Assessed at $1,377,487, the tax amount paid for 301 Union Street, San Francisco, CA 94133 is $16,291.

When was 301 Union Street, San Francisco, CA 94133 last sold?

301 Union Street, San Francisco, CA 94133 was last sold in 01/09/2009.

How many residential units does this building have?

This building has 5 residential unit(s) and 1 commercial spaces.

Ownership Information

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Real Estate Reports:
Lucian Alixandrescu, Jul 28, 2026 Brooklyn Emerges as NYC’s Coworking Growth Engine, Manhattan Rents Cross $100 in the Plaza District 
New York City’s office market continued to lead the U.S. in Q2, but internal shifts were most visible in the flex office market. Brooklyn’s coworking inventory grew 6.2% Q-o-Q even as Manhattan’s supply retreated. At the same time, Brooklyn’s asking rents for traditional office leases climbed more than twice as fast as the national average.
Eliza Theiss, Jul 22, 2026 Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs
Q2 2026 saw NYC and Manhattan reach historic highs, with Brooklyn and Queens marking close to new records as well. Meanwhile, Hudson Yards remained at the top, Central Midtown posted its highest price ever and Carroll Gardens marked its third consecutive quarter over $2 million
Laura Pop-Badiu, Jul 15, 2026 How to Find Property Owners — The Complete Guide 
For real estate professionals looking for the best ways to find property owners — whether through free methods based on public sources or paid tools with verified, in-depth data — this comprehensive guide breaks down every step of the due diligence process.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
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Past Sales & Property History for 301 Union Street, San Francisco

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No recorded sales for this property.

Title Documents for 301 Union Street, San Francisco

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Date Type Amount Party 1 Party 2 Maturity Document Doc image
12/11/2015 Declaration of Use Limitation
01/09/2009 Deed
               
               
               
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R: Recorded date
D: Document date

Property Taxes for 301 Union Street, San Francisco

Access detailed property tax data for 301 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 $16,292
Market value $1,377,487

Assessment History for 301 Union Street, San Francisco

Here's the assessment & property tax history for 301 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 $1,377,487 1.1827 $16,292 +3.25%
2024-2025 $1,347,008 1.1714 $15,779 +1.45%
2023-2024 $1,320,597 1.1777 $15,553 +1.83%
2022-2023 $1,294,705 1.1797 $15,274 +1.76%
2021-2022 $1,269,320 1.18248 $15,009 -0.31%

San Francisco residential market stats

Median Sale Price
$1,500,000
15.4% YoY
Median Price/Sqft
$1,155
11.2% YoY
San Francisco County Median Sale Price
$1,500,000
15.4% YoY

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.

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Demographics by Zip Code

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%
People per household (average) 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

Risk

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FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map
Crime incidents map

Transportation

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Neighbors for 301 Union Street, San Francisco

Here are the neighbors for 301 Union Street, San Francisco.

Address Square feet Purchase date Purchase price
1246 Montgomery St, San Francisco 555 09/03/2024 $765,000
4 Montague Pl, San Francisco 1,325 07/05/2013
5 Montague Pl, San Francisco 2,682 11/14/2024 $3,250,000
1 Montague Pl, San Francisco 2,205 03/18/2020
260 Green St, San Francisco 6,802 02/02/2017
1233 Montgomery St, San Francisco 4,000 10/18/2007
300 Green St, San Francisco 5,208 05/13/2026 $2,600,000
304 Green St, San Francisco 1,688 04/05/2016
1216 Montgomery St, San Francisco 5,406 05/06/2009
1191 Sansome St, San Francisco 06/17/2019 $2,500,000
38 Calhoun Ter, San Francisco 11/02/2011
1257 Montgomery St, San Francisco 3,299 08/27/2013 $400,000
1227 Montgomery St, San Francisco 12/31/2010
306 Green St, San Francisco 2,724 03/28/2013
10 Calhoun Ter, San Francisco 04/06/2022
6 Montague Pl, San Francisco 1,364 09/17/2010
1228 Montgomery St, San Francisco 5,947 01/22/2024
291 Union St, San Francisco 2,199 02/11/2008
66 Calhoun Ter, San Francisco 3,434 06/17/2019 $7,800,000
1111 Sansome St, San Francisco 07/05/2019

Nearby ZIP Codes for 301 Union Street, San Francisco

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