San Francisco County » 1640 20th St

1640 20th Street, San Francisco, CA 94107 Property Information

Research 100M+ property records powered by:

2000+ governmental and public data sources
80 dedicated analysts and researchers
20+ years of real estate experience

Learn More

Photo & Map Show Hide

Address

Primary address	1640 20th Street, San Francisco
Zip code	94107
County	San Francisco

Neighborhood	Potrero Hill
Parcel ID	4068-012

Sales & Tax Overview for 1640 20th 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	01/20/2005
Sale price	$1,489,500

Arm's length	Register
Property tax	$26,265

Lot & Building Information for 1640 20th Street, San Francisco

Building sqft	2,458
Building class	Dwelling (D)
Acreage	0.047
Units	1
Year built	1926
Stories	2
Bedrooms	3
Bathrooms	4

Zoning, Use & Area Overview

Walk Score

Transit Score

Bike Score

Zoning district	Residential- House, Two Family (RH-2)
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 1640 20th Street, San Francisco

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

• Improvements for 1640 20th 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).

Unlock all property data with a free account.
Sign up

About 1640 20th Street, San Francisco

What is the year built & the total sq. ft. for 1640 20th Street, San Francisco, CA 94107?

1640 20th Street, San Francisco, CA 94107 was built in 1926 and has a total of 2,458 square feet.

What is the assessed value of 1640 20th Street, San Francisco, CA 94107 and the property tax paid?

Assessed at $2,220,761, the tax amount paid for 1640 20th Street, San Francisco, CA 94107 is $26,264.

When was 1640 20th Street, San Francisco, CA 94107 last sold?

1640 20th Street, San Francisco, CA 94107 was last sold in 03/19/2013.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Commercial Real Estate nearby

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
80 dedicated analysts and researchers
20+ years of real estate experience

Learn More

Past Sales & Property History for 1640 20th Street, San Francisco

Create a free account to view the complete sales history for 1640 20th Street, San Francisco, including title documents, transfer conditions, mortgages and liens.

Access the complete sales history for 1640 20th Street, San Francisco with a free account.
Sign up

More about San Francisco County Property Records

Title Documents for 1640 20th 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
12/23/2024	Reconveyance
12/23/2024	Substitution Trustee
11/22/2016	Release Lien
10/24/2016	Notice Lien
08/27/2015	Release Lien
01/20/2015	Notice Lien
05/21/2013	Release Lien
05/13/2013	Reconveyance
05/13/2013	Substitution Trustee
04/23/2013	Notice Lien

Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 1640 20th Street, San Francisco

Access detailed property tax data for 1640 20th Street, San Francisco, CA 94107. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year:	2025-2026
Property tax	$26,265

Market value	$2,220,761

More about San Francisco County Property Taxes

Assessment History for 1640 20th Street, San Francisco

Here's the assessment & property tax history for 1640 20th 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	$2,220,761	1.1827	$26,265	+2.98%
2024-2025	$2,177,217	1.1714	$25,504	+1.45%
2023-2024	$2,134,528	1.1777	$25,138	+1.83%
2022-2023	$2,092,677	1.1797	$24,687	+1.76%
2021-2022	$2,051,647	1.18248	$24,260	-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.

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

Risk

Create a free account to unlock extended information for 1640 20th 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

Transportation

Access the detailed traffic volume map for 1640 20th 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

Schools

Nearest elementary schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Daniel Webster Elementary School	7	Public	K-5	346	0.10
Live Oak School	NR	Private	K-8	399	0.25
King (Starr) Elementary School	6	Public	K-5	322	0.46
Seneca Center	NR	Private	5-12	19	0.48
Red Bridge	NR	Private	K-5	0	0.53

Nearest middle schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
S.F. International High School	2	Public	8-12	401	0.19
Live Oak School	NR	Private	K-8	399	0.25
Seneca Center	NR	Private	5-12	19	0.48
Xian Yun Academy of the Arts California	NR	Private	6-12	37	0.55
Mission Preparatory School	5	Charter	K-8	469	0.68

Nearest high schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
S.F. International High School	2	Public	8-12	401	0.19
Downtown High School	2	Public	9-12	103	0.34
Seneca Center	NR	Private	5-12	19	0.48
Xian Yun Academy of the Arts California	NR	Private	6-12	37	0.55
Rise Institute	NR	Private	8-12	11	0.68

Neighbors for 1640 20th Street, San Francisco

Here are the neighbors for 1640 20th Street, San Francisco.

Address	Square feet	Purchase date	Purchase price
421 Arkansas St, San Francisco	2,150
409 Arkansas St, San Francisco	2,150	07/31/2023	$1,920,000
426 Connecticut St, San Francisco	1,780	01/30/2019
415 Arkansas St, San Francisco	1,075	02/16/2012
429 Arkansas St, San Francisco	1,807	07/24/2024
1632 20th St, San Francisco	2,645	05/06/2021	$3,800,000
490 Connecticut St, San Francisco	4,840	05/13/2024	$675,000
417 Arkansas St, San Francisco	1,075	02/22/2016	$1,240,000
430 Connecticut St, San Francisco	3,240	06/28/2011
475 Arkansas St, San Francisco	1,625	07/02/2014	$1,850,000
467 Arkansas St, San Francisco	2,760	07/07/2022
1616 20th St, San Francisco
406 Connecticut St, San Francisco	1,487	11/08/2021
1525 19th St, San Francisco	962	04/30/2021
472 Connecticut St, San Francisco	2,359	10/16/2003
468 Connecticut St, San Francisco	1,582	02/15/2012
479 Arkansas St, San Francisco	3,049	02/23/2011
455 Arkansas St, San Francisco	10,712
1624 20th St, San Francisco	2,602	03/22/2021	$3,800,000
1515 19th St, San Francisco	765	12/30/2021	$1,000,000

Nearby ZIP Codes for 1640 20th Street, San Francisco

Not sure if we cover all the data-points you need? View sample full report View sample full report

Sale date	Sale price	Buyer name	Seller name
01/20/2005	$1,489,500
08/31/1994	$569,000