San Francisco County  »  94133  »  Mason St  »  1731 Mason St

1731 Mason Street, San Francisco, CA 94133 Property Information

1731 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

1731 Mason Street, San Francisco, CA 94133
static Mapbox map

Address

Primary address 1731 Mason Street, San Francisco
Zip code 94133
County San Francisco
Neighborhood Russian Hill
Parcel ID 0119-005

Sales & Tax Overview for 1731 Mason 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 09/01/1992
Sale price $436,000
Arm's length
Current property tax $8,855

Lot & Building Information for 1731 Mason Street, San Francisco

Building sqft 2,848
Building class Flats & Duplex (F)
Acreage 0.069
Units 2
Year built 1908
Stories 2
Bathrooms 2
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
Transit Score
Bike Score


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 1731 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 1731 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 1731 Mason Street, San Francisco

What is the year built & the total sq. ft. for 1731 Mason Street, San Francisco, CA 94133?

1731 Mason Street, San Francisco, CA 94133 was built in 1908 and has a total of 2,848 square feet.

What is the assessed value of 1731 Mason Street, San Francisco, CA 94133 and the property tax paid?

Assessed at $755,687, the tax amount paid for 1731 Mason Street, San Francisco, CA 94133 is $8,937.

When was 1731 Mason Street, San Francisco, CA 94133 last sold?

1731 Mason Street, San Francisco, CA 94133 was last sold in 01/26/2006.

How many residential units does this building have?

This building has 2 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:
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.
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 1731 Mason Street, San Francisco

Create a free account to view the complete sales history for 1731 Mason Street, San Francisco, including title documents, transfer conditions, mortgages and liens.

Sale date Sale price Buyer name Seller name
09/01/1992 $436,000

Title Documents for 1731 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
01/26/2006 Deed
05/22/2003 Reconveyance
04/17/2003 Deed of Trust
10/15/1998 Deed of Trust
12/16/1993 Deed of Trust
03/25/1993 Notice
09/01/1992 Deed of Trust
09/01/1992 Deed
04/26/1990 Affadavit Death
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 1731 Mason Street, San Francisco

Access detailed property tax data for 1731 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
Base tax $8,938
Current property tax $8,855
Market value $755,687

Assessment History for 1731 Mason Street, San Francisco

Here's the assessment & property tax history for 1731 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 $755,687 1.1827 $8,938 +2.98%
2024-2025 $740,870 1.1714 $8,679 +1.45%
2023-2024 $726,344 1.1777 $8,554 +1.83%
2022-2023 $712,103 1.1797 $8,401 +1.76%
2021-2022 $698,141 1.18248 $8,255 -0.31%

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 1731 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 1731 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 to school (mi)
Parker (Jean) Elementary School 7 Public K-5 149 0.16
The New School of San Francisco 7 Charter K-7 439 0.16
Cooper (Sarah B.) Children Center NR Public 95 0.16
Sts. Peter And Paul K-8 NR Private K-9 225 0.18
Yick Wo Elementary School 8 Public K-5 209 0.26

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
The New School of San Francisco 7 Charter K-7 439 0.16
Cooper (Sarah B.) Children Center NR Public 95 0.16
Sts. Peter And Paul K-8 NR Private K-9 225 0.18
Francisco Middle School 5 Public 6-8 535 0.35
St. Mary's School NR Private PK, K-8 80 0.50

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Cooper (Sarah B.) Children Center NR Public 95 0.16
Sterne School NR Private 4-12 208 0.50
Sterne School NR Private 4-12 204 0.50
Fusion Academy Sf: San Francisco NR Private 6-12 50 0.64
Fusion Academy San Francisco NR Private 6-12 55 0.64

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

Neighbors for 1731 Mason Street, San Francisco

Here are the neighbors for 1731 Mason Street, San Francisco.

Address Square feet Purchase date Purchase price
1717 Mason St, San Francisco 9,860 10/14/2025 $7,400,000
840 Green St, San Francisco 2,590 02/04/2015
1743 Mason St, San Francisco 5,280 09/24/2024
1760 Mason St, San Francisco 800 04/26/2024 $1,525,000
717 Union St, San Francisco 7,682 12/23/2015 $3,300,000
1711 Mason St, San Francisco 3,420 12/17/2025
774 Green St, San Francisco 1,135 07/21/2020 $1,327,000
824 Green St, San Francisco 2,658 07/07/2022
802 Green St, San Francisco 4,716 11/06/2015 $2,200,000
834 Green St, San Francisco 6,390 11/30/2023 $2,905,000
1737 Mason St, San Francisco 5,180 05/01/2019
829 Union St, San Francisco 2,924 06/16/2021
1725 Mason St, San Francisco 2,796 02/22/2005 $1,975,000
812 Green St, San Francisco 3,300 08/24/2018
828 Green St, San Francisco 3,214 02/20/2018
1753 Mason St, San Francisco 9,350 01/19/2024
11 August Aly, San Francisco 1,168 11/06/2009 $1,400,000
818 Green St, San Francisco 3,810 04/18/2025 $1,100,000
725 Union St, San Francisco 5,460 09/06/2022
741 Union St, San Francisco 4,740 09/19/2002

Nearby ZIP Codes for 1731 Mason Street, San Francisco

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