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

1931 Mason Street, San Francisco, CA 94133 Property Information

1931 Mason Street, San Francisco, CA 94133 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
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

1931 Mason Street, San Francisco, CA 94133
static Mapbox map

Address

Primary address 1931 Mason Street, San Francisco
Zip code 94133
County San Francisco
Neighborhood Russian Hill
Parcel ID 0091-004

Sales & Tax Overview for 1931 Mason Street, San Francisco

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

Property tax $1,887

Lot & Building Information for 1931 Mason Street, San Francisco

Building sqft 2,150
Building class Flats & Duplex (F)
Acreage 0.031
Units 3
Year built 1907
Stories 2
Bathrooms 3
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
99 /100. Walker's Paradise
Transit Score
86 /100. Excellent Transit
Bike Score
67 /100. Bikeable

Zoning district Residential- Mixed, Moderate Density (RM-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 1931 Mason 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 1931 Mason 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 1931 Mason Street, San Francisco

What is the year built & the total sq. ft. for 1931 Mason Street, San Francisco, CA 94133?

1931 Mason Street, San Francisco, CA 94133 was built in 1907 and has a total of 2,150 square feet.

What is the assessed value of 1931 Mason Street, San Francisco, CA 94133 and the property tax paid?

Assessed at $159,577, the tax amount paid for 1931 Mason Street, San Francisco, CA 94133 is $1,887.

When was 1931 Mason Street, San Francisco, CA 94133 last sold?

1931 Mason Street, San Francisco, CA 94133 was last sold in 09/10/1999.

How many residential units does this building have?

This building has 3 residential unit(s).

Ownership Information

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

Real Estate Reports:
Brooklyn Emerges as NYC’s Coworking Growth Engine, Manhattan Rents Cross $100 in the Plaza District 
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.
Prices Rise in 32 of NYC’s Leading Neighborhoods as City and Manhattan Hit Record Highs
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
How to Find Property Owners — The Complete Guide 
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 1931 Mason Street, San Francisco

Create a free account to view the complete sales history for 1931 Mason Street, San Francisco, including title documents, transfer conditions, mortgages and liens.

No recorded sales for this property.

More about San Francisco County Property Records

Title Documents for 1931 Mason 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
11/30/2021 Deed of Trust 12/01/2051
08/16/2021 Assgn Deed of Trust
08/29/2014 Release Lien
03/21/2014 Notice Lien
07/16/2013 Deed of Trust 07/01/2043
09/10/1999 Deed
Show More
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 1931 Mason Street, San Francisco

Access detailed property tax data for 1931 Mason Street, San Francisco, CA 94133. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $1,887
Market value $159,577

More about San Francisco County Property Taxes

Assessment History for 1931 Mason Street, San Francisco

Here's the assessment & property tax history for 1931 Mason 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 $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%
Show More

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 1931 Mason 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
Landslides and liquefaction map
Crime incidents map

Transportation

Access the detailed traffic volume map for 1931 Mason 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)
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
Show More

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
Show More

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
Show More

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

Neighbors for 1931 Mason Street, San Francisco

Here are the neighbors for 1931 Mason Street, San Francisco.

Address Square feet Purchase date Purchase price
816 Filbert St, San Francisco 3,609 12/10/2021
23 Valparaiso St, San Francisco 2,064 08/31/2005
1926 Mason St, San Francisco 1,003 05/22/2003
701 Columbus Ave, San Francisco 5,300 11/01/2018
724 Filbert St, San Francisco 3,672 07/12/2016
828 Filbert St, San Francisco 4,302 10/24/2001
725 Columbus Ave, San Francisco 5,940 12/07/2017
785 Columbus Ave, San Francisco 9,582
1921 Mason St, San Francisco 3,819 03/20/2009
736 Filbert St, San Francisco 3,330 10/12/2011
810 Filbert St, San Francisco 4,455 08/04/2010
17 Valparaiso St, San Francisco 1,990 02/24/2025
822 Filbert St, San Francisco 3,685 08/21/2012
1943 Mason St, San Francisco 3,270 03/01/2018
1937 Mason St, San Francisco 3,558 12/02/2014 $2,225,000
29 Via Bufano, San Francisco 3,015 07/25/2005 $229,000
725 Greenwich St, San Francisco 10,600 12/15/2004
1901 Mason St, San Francisco 10,200 04/13/2023
840 Filbert St, San Francisco 2,112 08/17/2017
846 Filbert St, San Francisco 2,428 07/31/1997 $190,000
Show More

Nearby ZIP Codes for 1931 Mason Street, San Francisco

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