San Francisco County  »  94110  »  20th St  »  3421 20th St

3421 20th Street, San Francisco, CA 94110 - Property report

Also known as: 3421 20th St

Property image for 3421 20th Street, San Francisco, CA 94110
static Mapbox map

Property type

Apartments 5 to 14 Units (A5)

Year built

1906

Lot sq. ft.

3,006

Sale price

$1,525,000

General Information

Address
Primary address
3421 20th St
San Francisco, CA 94110
Alternate address(es)
3423 20th St
3425 20th St
3427 20th St
Zip code
94110
Neighborhood
Inner Mission
County
San Francisco
Municipality
City of San Francisco
Parcel ID
3610-049

Owner

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Sales
Sale date
09/09/2014
Sale price
$1,525,000
Arm's length
Tax
Tax year
2025-2026
Property tax
$25,225
Building
Property type
Apartments 5 to 14 Units
Building sq. ft.
6,390
Stories
3
Year built
1906
Building material
D
Rooms
24
Lot
Acreage
0.069
Lot sq. ft.
3,006
Zoning & use
Zoning
Qualified opportunity zone
Units
6

Area overview

Walk score
99 /100.  Walker's Paradise
Transit score
88 /100.  Excellent Transit
Bike score
100 /100.  Biker's Paradise
School district
San Francisco Unified School District

Ownership information for 3421 20th Street, San Francisco, CA

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Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address

Sales history for 3421 20th Street, San Francisco, CA 94110

*Most recent sale on record for this property.

More about San Francisco County property records.

Title documents

Date Type Amount Party 1 Party 2 Doc #
10/29/2024 Order of Abatement XXXXXXXXX XXXXX XXXXXXXXXXXX XXXXXXXXXX
07/11/2024 Order of Abatement XXXXXXXXX XXXXX XXXXXXXXXXXX XXXXXXXXXX
09/14/2021 Grant Deed XXXXX XXXXXXXXX XXXX XXXXX XXXXX XXXXXXXXX XXXXX
12/18/2019 Notice of Special Restrictions XXXX XXXXXXXXX XXXX XXXXX XXXXX XXXX
12/18/2019 Accessory Dwelling (Adu)rent Restriction XXXXX XXXXXXXXX XXXXX XXXXX XXXX
06/21/2017 Order of Abatement -Lien XXXXX XXXXXXXXX XXXX XXXXX XX XXXX-XXXXXXXX XXXXXXXXXX
06/21/2017 Order of Abatement -Lien XXXXX XXXXXXXXX XXXX XXXXX XX XXXX-XXXXXXXX XXXXXXXXXX
05/25/2017 Resolution XXXX-XXXXX XX XXXXXXXXXXX XXXXXXXXXX XX XXX-XX
08/27/2015 Release Lien XXXXX XXXXXXXXX XXXX XXXXX XXXX
05/19/2015 Notice Lien XXXX XXX X X XXXX XXXXX XXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Property taxes for 3421 20th Street, San Francisco, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Property tax
$25,225
Recent tax assessments
Market value
$2,132,813
Land value
$1,466,253
Building value
$666,560

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $2,132,813 1.1827 $25,225 +2.70%
2024-2025 $2,096,876 1.1714 $24,563 +9.10%
2023-2024 $1,911,644 1.1777 $22,513 +10.50%
2022-2023 $1,727,103 1.1797 $20,375 +1.76%
2021-2022 $1,693,240 1.18248 $20,022 -0.31%
2020-2021 $1,675,879 1.1984 $20,084 +3.58%
2019-2020 $1,643,019 1.1801 $19,389 +3.50%
2018-2019 $1,610,804 1.163 $18,734 +1.19%
2017-2018 $1,579,221 1.1723 $18,513 +1.11%
2016-2017 $1,548,256 1.1826 $18,310 +1328.54%

Permit information for 3421 20th Street, San Francisco, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
06/22/2026
06/04/2026
03/24/2026
02/10/2026
01/22/2026

*Most recent permits on record for this property.

San Francisco residential market stats

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.

Median sale price

$1,500,000

15.4% Y-o-Y

Median price/sq. ft.

$1,155

11.2% Y-o-Y

San Francisco county median sale price

$1,500,000

15.4% Y-o-Y

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

Demographics by ZIP code

Total population
66,865
Median age
39.3
Average household income
$231,366
Family households
48.4%
People per household (average)
2.38
Occupied housing units
27,208
Owner-occupied units
41.8%
Median year structure built
1938
Median value mortgaged units
$1,510,500
Median value unmortgaged units
$1,210,300

Risk

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FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map
Crime incidents map

Transportation

Daily traffic map

Access the detailed traffic volume map for 3421 20th Street, San Francisco, CA 94110 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Frequently asked questions

What is the year built for 3421 20th Street, San Francisco, CA 94110?

The development at 3421 20th Street, San Francisco, CA 94110 was built in 1906.

What is the total square footage of 3421 20th Street, San Francisco, CA 94110?

3421 20th Street, San Francisco, CA 94110 has a total of 6,390 square feet.

When was 3421 20th Street, San Francisco, CA 94110 last sold and what was the sale price?

3421 20th Street, San Francisco, CA 94110 was last sold on 09/09/2014 for $1,525,000.

What is the assessed value of 3421 20th Street, San Francisco, CA 94110?

3421 20th Street, San Francisco, CA 94110 is currently assessed at $2,132,813.

What are the property taxes for 3421 20th Street, San Francisco, CA 94110?

The property taxes for 3421 20th Street, San Francisco, CA 94110 total $25,224.

How many residential units does this building have?

This building has 6 residential unit(s).

Disclaimer

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Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.

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