San Francisco County  »  94133  »  Mason St  »  1931 Mason St

1931 Mason Street, San Francisco, CA 94133 - Property report

Also known as: 1931 Mason St

Property image for 1931 Mason Street, San Francisco, CA 94133
static Mapbox map

Property type

Flats & Duplex (F)

Year built

1907

Lot sq. ft.

1,350

General Information

Address
Primary address
1931 Mason St
San Francisco, CA 94133
Alternate address(es)
1933 Mason St
Zip code
94133
Neighborhood
Russian Hill
County
San Francisco
Municipality
City of San Francisco
Parcel ID
0091-004

Owner

Find out who owns 1931 Mason Street, San Francisco, CA 94133. Uncover corporate and individual owners with a free account.

Tax
Tax year
2025-2026
Property tax
$1,887
Tax per sq. ft.
$1
Building
Property type
Flats & Duplex
Building sq. ft.
2,150
Stories
2
Year built
1907
Building material
D
Rooms
12
Bathrooms
3
Lot
Acreage
0.031
Zoning & use
Zoning
Residential- Mixed, Moderate Density (RM-2)
Units
3

Area overview

Walk score
99 /100.  Walker's Paradise
Transit score
86 /100.  Excellent Transit
Bike score
67 /100.  Bikeable
School district
San Francisco Unified School District

Ownership information for 1931 Mason Street, San Francisco, CA

Uncover detailed property contact info like individual owners, building management and representatives from permits.

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

Sales history for 1931 Mason Street, San Francisco, CA 94133

No recently recorded sales for this property.

More about San Francisco County property records.

Title documents

Date Type Amount Party 1 Party 2 Doc #
11/30/2021 Deed of Trust XXXXX XXXXXX XXXX XXX
08/16/2021 Assgn Deed of Trust XXXXX XXXXXXX X XXXXXXX XXXXXXXXXXX XXXXXXXXXXX XXXX
08/29/2014 Release Lien XXX XXXXXXX X XXXXX XXXX
03/21/2014 Notice Lien XXX XXXXXXX X XXXXX XXXX
07/16/2013 Deed of Trust XXXXX XXXXXX X XXXX XXX
09/10/1999 Deed XXX XXXXXXX X XXXXXXX X XXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Property taxes for 1931 Mason 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
$1,887
Tax per sq. ft.
$1
Recent tax assessments
Market value
$159,577
Land value
$77,135
Building value
$82,442

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 $159,577 1.1827 $1,887 +2.98%
2024-2025 $156,449 1.1714 $1,833 +1.45%
2023-2024 $153,383 1.1777 $1,806 +1.83%
2022-2023 $150,377 1.1797 $1,774 +1.78%
2021-2022 $147,429 1.18248 $1,743 -0.33%
2020-2021 $145,919 1.1984 $1,749 +3.58%
2019-2020 $143,058 1.1801 $1,688 +3.50%
2018-2019 $140,254 1.163 $1,631 +1.19%
2017-2018 $137,505 1.1723 $1,612 +1.11%
2016-2017 $134,810 1.1826 $1,594 +1.52%

Permit information for 1931 Mason Street, San Francisco, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
02/23/2011
02/10/2006
05/19/2005
10/07/2004
09/08/1989

*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.

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 1931 Mason Street, San Francisco, CA 94133 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
The New School of San Francisco 7 Charter K-7 439 0.12
Cooper (Sarah B.) Children Center NR Public 95 0.12
Sts. Peter And Paul K-8 NR Private K-9 225 0.14
Yick Wo Elementary School 8 Public K-5 209 0.19
Parker (Jean) Elementary School 7 Public K-5 149 0.28
Garfield Elementary School 7 Public K-5 194 0.34
Stockton (Commodore) Children Center NR Public K 22 0.49
Lau (Gordon J.) Elementary School 8 Public K-5 644 0.53
Chin (John Yehall) Elementary School 9 Public K-5 260 0.58
St. Mary's School NR Private PK, K-8 80 0.59
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
The New School of San Francisco 7 Charter K-7 439 0.12
Cooper (Sarah B.) Children Center NR Public 95 0.12
Sts. Peter And Paul K-8 NR Private K-9 225 0.14
Francisco Middle School 5 Public 6-8 535 0.22
St. Mary's School NR Private PK, K-8 80 0.59
Sterne School NR Private 4-12 204 0.59
Sterne School NR Private 4-12 208 0.59
Fusion Academy Sf: San Francisco NR Private 6-12 50 0.63
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Cooper (Sarah B.) Children Center NR Public 95 0.12
Sterne School NR Private 4-12 204 0.59
Sterne School NR Private 4-12 208 0.59
Galileo High School 8 Public 9-12 1,826 0.62
Fusion Academy Sf: San Francisco NR Private 6-12 50 0.63
Fusion Academy San Francisco NR Private 6-12 55 0.63
Tahour Academy NR Private 5-12 6 0.97
Mary L. Booker Leadership Academy NR Charter 6-12 57 1.30
S.F. County Civic Center Secondary 2 Public 6-12 58 1.56
Five Keys Independence High School (Sf Sheriff's) 3 Charter 9-12 3,019 1.78

Data provided by GreatSchools.org © 2026. All rights reserved.

Frequently asked questions

What is the year built for 1931 Mason Street, San Francisco, CA 94133?

The development at 1931 Mason Street, San Francisco, CA 94133 was built in 1907.

What is the total square footage of 1931 Mason Street, San Francisco, CA 94133?

1931 Mason Street, San Francisco, CA 94133 has a total of 2,150 square feet.

What is the assessed value of 1931 Mason Street, San Francisco, CA 94133?

1931 Mason Street, San Francisco, CA 94133 is currently assessed at $159,577.

What are the property taxes for 1931 Mason Street, San Francisco, CA 94133?

The property taxes for 1931 Mason Street, San Francisco, CA 94133 total $1,887.

How many residential units does this building have?

This building has 3 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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