San Francisco County  »  640 Oak St

640 Oak Street, San Francisco, CA 94117 Property Information

640 Oak Street, San Francisco, CA 94117 Property Information

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  • Owner
  • Documents
  • Tax
  • Neighborhood
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640 Oak Street, San Francisco, CA 94117
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Address

Primary address 640 Oak Street, San Francisco
Zip code 94117
County San Francisco
Neighborhood Hayes Valley
Parcel ID 0828-040

Sales & Tax Overview for 640 Oak 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 01/06/2020
Sale price $1,526,000
Arm's length
Current property tax $19,651

Lot & Building Information for 640 Oak Street, San Francisco

Building sqft 1,750
Building class Condominium (Z)
Acreage 0.096
Year built 1910
Bedrooms 2
Bathrooms 1
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Residential- Mixed, Low Density (RM-1)
School district San Francisco Unified School District

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Other Property Data for 640 Oak Street, San Francisco

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About 640 Oak Street, San Francisco

What is the year built & the total sq. ft. for 640 Oak Street, San Francisco, CA 94117?

640 Oak Street, San Francisco, CA 94117 was built in 1910 and has a total of 1,750 square feet.

What is the assessed value of 640 Oak Street, San Francisco, CA 94117 and the property tax paid?

Assessed at $1,668,504, the tax amount paid for 640 Oak Street, San Francisco, CA 94117 is $19,733.

When was 640 Oak Street, San Francisco, CA 94117 last sold?

640 Oak Street, San Francisco, CA 94117 was last sold in 08/03/2023.

Ownership Information

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Real Estate Reports:
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
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.
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Past Sales & Property History for 640 Oak Street, San Francisco

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Sale date Sale price Buyer name Seller name
01/06/2020 $1,526,000
12/30/2010 $689,000
       
       
       
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Title Documents for 640 Oak 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
08/03/2023 Trust Transfer Deed
02/08/2021 Reconveyance
02/08/2021 Substitution Trustee
01/27/2021 Deed of Trust 02/01/2051
01/29/2020 Reconveyance
01/22/2020 Reconveyance
01/06/2020 Deed of Trust 02/01/2050
01/06/2020 Grant Deed
11/12/2019 Residential Energy & Water Cons Inspect
07/08/2019 Deed of Trust
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R: Recorded date
D: Document date

Property Taxes for 640 Oak Street, San Francisco

Access detailed property tax data for 640 Oak Street, San Francisco, CA 94117. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $19,733
Current property tax $19,651
Market value $1,668,504

Assessment History for 640 Oak Street, San Francisco

Here's the assessment & property tax history for 640 Oak 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 $1,668,504 1.1827 $19,733 +2.98%
2024-2025 $1,635,790 1.1714 $19,162 +1.45%
2023-2024 $1,603,716 1.1777 $18,887 +1.83%
2022-2023 $1,572,272 1.1797 $18,548 +1.76%
2021-2022 $1,541,444 1.18248 $18,227 +88.44%

San Francisco residential market stats

Median Sale Price
$1,385,000
2.6% YoY
Median Price/Sqft
$1,098
7.5% YoY
San Francisco County Median Sale Price
$1,385,000
2.6% 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.

Risk

Create a free account to unlock extended information for 640 Oak 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).

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 640 Oak 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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Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
AltSchool Alamo Square NR Private PK, K-5 0 0.03
AltSchool Alamo Square NR Private PK, K-5 0 0.03
San Francisco Schoolhouse NR Private K-8 30 0.04
Muir (John) Elementary School 6 Public K-5 214 0.07
Burt Children's Center NR Private 1, 3-7 0 0.23

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
San Francisco Schoolhouse NR Private K-8 30 0.04
Burt Children's Center NR Private 1, 3-7 0 0.23
Walden Academy NR Private 8-12 0 0.25
Spectrum Center, Inc NR Private 7-12 54 0.41
Chinese American International School NR Private PK-8 510 0.42

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Wells (Ida B.) High School 2 Public 9-12 152 0.23
Walden Academy NR Private 8-12 0 0.25
Spectrum Center, Inc NR Private 7-12 54 0.41
The International School of San Francisco NR Private K-12 958 0.42
International High School NR Private 9-12 381 0.42

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 640 Oak Street, San Francisco

Here are the neighbors for 640 Oak Street, San Francisco.

Address Square feet Purchase date Purchase price
663 Fell St, San Francisco 1,740 03/07/2018
737 Oak St, San Francisco 1,407 04/08/2011 $726,500
895 Hayes St, San Francisco 1,899 06/18/2021 $2,170,000
1236 Pierce St, San Francisco 950 07/02/2018
526 Hickory St, San Francisco 2,425 01/05/2022 $3,155,000
638 Oak St, San Francisco 1,945 11/08/2019 $1,595,000
735 Oak St, San Francisco 1,368 06/17/2021 $1,200,000
473 Oak St, San Francisco 1,124 06/12/2017 $1,250,000
425 Buchanan St, San Francisco 1,843 09/26/2018
1301 Turk St, San Francisco 21,155
1150 Fillmore St, San Francisco 6,335 12/21/2009
471 Oak St, San Francisco 1,016 12/24/2024
336 Scott St, San Francisco 1,764 07/10/2018 $1,905,000
893 Hayes St, San Francisco 960 04/22/2016
338 Scott St, San Francisco 1,736 06/16/2025 $1,850,000
245 Pierce St, San Francisco 1,330 04/04/2017
1238 Pierce St, San Francisco 1,096 06/14/2018
1737 Webster St, San Francisco 3,408 07/26/2021 $4,850,000
1140 Fillmore St, San Francisco
1370 McAllister St, San Francisco 1,540 11/19/2021 $1,225,000

Nearby ZIP Codes for 640 Oak Street, San Francisco

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