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434 Post Street, San Francisco, CA 94102 Property Information

434 Post Street, San Francisco, CA 94102 Property Information

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  • Owner
  • Documents
  • Tax
  • Neighborhood
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434 Post Street, San Francisco, CA 94102
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Address

Primary address 434 Post Street, San Francisco
Zip code 94102
County San Francisco
Neighborhood Downtown District 8 - North East
Parcel ID 0296-007

Sales & Tax Overview for 434 Post Street, San Francisco

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

Sale date 12/07/2020
Sale price $5,199,000
Arm's length
Property tax $115,857

Lot & Building Information for 434 Post Street, San Francisco

Building sqft 19,170
Acreage 0.077
Rooms 33
Year built 1910
Stories 6
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district San Francisco Unified School District

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 434 Post Street, San Francisco

Property reports include comprehensive occupancy, improvement and development information (where available).
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  • • Improvements for 434 Post Street, San Francisco , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
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About 434 Post Street, San Francisco

What is the year built & the total sq. ft. for 434 Post Street, San Francisco, CA 94102?

434 Post Street, San Francisco, CA 94102 was built in 1910 and has a total of 19,170 square feet.

What is the assessed value of 434 Post Street, San Francisco, CA 94102 and the property tax paid?

Assessed at $9,795,996, the tax amount paid for 434 Post Street, San Francisco, CA 94102 is $115,857.

When was 434 Post Street, San Francisco, CA 94102 last sold and what was the last sale price?

434 Post Street, San Francisco, CA 94102 was last sold in 12/07/2020 for $5,199,000.

Ownership Information

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Spaces for Lease in 434 Post Street, San Francisco

No photo available
434 Post St
Listing type For Lease
Listing date 03/21/2025
Last updated 05/04/2026

434 Post Street located in the vibrant Union Square neighborhood of San Francisco, this commercial space offers an exceptional opportunity for retail or office use. Spanning approximately +/- 2,555 square feet with an additional 440 square feet mezzanine, the property features high visibility in a prime location in one of the city’s most prestigious areas .

 

Enjoy high visibility in the bustling Union Square district, known for its shopping, dining, and tourism. The space boasts elegant hardwood floors, adding to its upscale appeal. Impressively high ceilings of over 15 feet create a spacious and airy atmosphere.

 

This property presents a rare opportunity to establish a presence in one of San Francisco’s most coveted retail and commercial districts, surrounded by luxury retailers, prominent hotels, and popular dining destinations. Ideal for businesses seeking to capitalize on foot traffic and prominence in a prestigious urban setting.

View Listing
Spaces
Suite name Space type Lease rate Available space Brokers
Space Available Retail Listing price not available 2,555 Joan Ruyle
Active Listings For This Property:
For Lease No photo available
434 Post St
434 Post Street, San Francisco
Property Retail
Availability 1 Spaces listed / 2555 Sqft
Price Listing price not available
Real Estate Reports:
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
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Past Sales & Property History for 434 Post Street, San Francisco

Create a free account to view the complete sales history for 434 Post Street, San Francisco, including title documents, transfer conditions, mortgages and liens.

Sale date Sale price Buyer name Seller name
12/07/2020 $5,199,000
12/07/2020 $2,212,500
12/07/2020 $1,549,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 434 Post Street, San Francisco

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.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
11/27/2024 Assgn Deed of Trust
01/29/2021 Reconveyance
01/29/2021 Substitution Trustee
12/07/2020 Assumption Dot/Mrtge
12/07/2020 Modif Deed of Trust
12/07/2020 Grant Deed
12/07/2020 Grant Deed
12/07/2020 Grant Deed
12/07/2020 Grant Deed
12/07/2020 Grant Deed
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R: Recorded date
D: Document date

Property Taxes for 434 Post Street, San Francisco

Access detailed property tax data for 434 Post Street, San Francisco, CA 94102. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $115,857
Market value $9,795,996

Assessment History for 434 Post Street, San Francisco

Here's the assessment & property tax history for 434 Post 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
2024-2025 $9,603,920 1.1714 $112,500 +1.45%
2023-2024 $9,415,611 1.1777 $110,888 -27.85%
2022-2023 $13,028,249 1.1797 $153,694 +177.72%
2021-2022 $4,680,176 1.18248 $55,342 +0.64%
2020-2021 $4,588,409 1.1984 $54,987 +3.58%

San Francisco residential market stats

Median Sale Price
$1,325,000
1.8% YoY
Median Price/Sqft
$1,026
-0.1% YoY
San Francisco County Median Sale Price
$1,325,000
1.8% 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.

Check out recently sold homes in San-Francisco and see how their prices compare.

Demographics By Zip Code

Total population 34,983
Median age 41
Average household income $113,263
Family households 26.3%
Occupied housing units 19,543
Owner occupied units 8.6%
Average number of people per household 1
Median year structure built 1941
Median value for units with a mortgage $984,500
Median value for units without a mortgage $1,043,300

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

Access the detailed traffic volume map for 434 Post Street, San Francisco to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Neighbors for 434 Post Street, San Francisco

Here are the neighbors for 434 Post Street, San Francisco.

Address Square feet Purchase date Purchase price
595 Sutter St, San Francisco 12,270
559 Sutter St, San Francisco 21,214 01/09/2018
547 Sutter St, San Francisco 20,765 01/09/2018
400 Post St, San Francisco 61,407 03/08/2007 $103,000,000
442 Post St, San Francisco 32,647 08/21/2023
433 Powell St, San Francisco 48,713 12/18/2025
350 Post St, San Francisco 110,893 09/23/2016 $135,000,000
431 Sutter St, San Francisco 17,097 10/15/2018 $10,000,000
432 Powell St, San Francisco 232,984 04/02/2021 $152,169,500
542 Mason St, San Francisco 12,504 01/04/2021
535-545 Sutter St, San Francisco 22,121 02/20/2002
445 Sutter St, San Francisco 81,123 04/24/2015
384 Post St, San Francisco 136,000 10/12/2021 $156,000,000
450 Post St, San Francisco 162,214 05/03/1995
536 Mason St, San Francisco 14,945 05/10/2002
527 Sutter St, San Francisco 14,778 02/08/2013 $4,625,000
435 Powell St, San Francisco 15,422 07/16/2024
449 Powell St, San Francisco 34,173
441 Sutter St, San Francisco 13,065 02/23/2007
445 Powell St, San Francisco 3,958 01/11/2024

Nearby ZIP Codes for 434 Post Street, San Francisco

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