San Francisco County  »  94118  »  Cornwall St  »  421 Cornwall St

421 Cornwall Street, San Francisco, CA 94118 Property Information

421 Cornwall Street, San Francisco, CA 94118 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

421 Cornwall Street, San Francisco, CA 94118
static Mapbox map

Address

Primary address 421 Cornwall Street, San Francisco
Zip code 94118
County San Francisco
Neighborhood Inner Richmond
Parcel ID 1428-048

Sales & Tax Overview for 421 Cornwall 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 $2,323

Lot & Building Information for 421 Cornwall Street, San Francisco

Building sqft 3,470
Building class Apartment (A)
Acreage 0.057
Rooms 12
Units 4
Year built 1923
Stories 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
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 421 Cornwall 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 421 Cornwall 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 421 Cornwall Street, San Francisco

What is the year built & the total sq. ft. for 421 Cornwall Street, San Francisco, CA 94118?

421 Cornwall Street, San Francisco, CA 94118 was built in 1923 and has a total of 3,470 square feet.

What is the assessed value of 421 Cornwall Street, San Francisco, CA 94118 and the property tax paid?

Assessed at $196,387, the tax amount paid for 421 Cornwall Street, San Francisco, CA 94118 is $2,322.

When was 421 Cornwall Street, San Francisco, CA 94118 last sold?

421 Cornwall Street, San Francisco, CA 94118 was last sold in 01/03/1990.

How many residential units does this building have?

This building has 4 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 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.
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
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 421 Cornwall Street, San Francisco

Create a free account to view the complete sales history for 421 Cornwall Street, San Francisco, including title documents, transfer conditions, mortgages and liens.

No recorded sales for this property.

Title Documents for 421 Cornwall 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
03/21/2025 Affidavit Change Ttee
01/09/2017 Affidavit-Change of Trustee/Successor
01/03/1990 Deed
               
               
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 421 Cornwall Street, San Francisco

Access detailed property tax data for 421 Cornwall Street, San Francisco, CA 94118. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Property tax $2,323
Market value $196,387

Assessment History for 421 Cornwall Street, San Francisco

Here's the assessment & property tax history for 421 Cornwall 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
2024-2025 $192,663 1.1714 $2,257 +1.40%
2023-2024 $188,990 1.1777 $2,226 +1.53%
2022-2023 $185,821 1.1797 $2,192 +1.30%
2021-2022 $182,988 1.18248 $2,164 -0.14%
2020-2021 $180,826 1.1984 $2,167 +3.56%

San Francisco residential market stats

Median Sale Price
$1,325,000
1.8% YoY
Median Price/Sqft
$1,026
-0.1% YoY
San Francisco County Median Sale Price
$1,325,000
1.8% 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.

Demographics By Zip Code

Total population 39,275
Median age 39
Average household income $235,834
Family households 48.3%
Occupied housing units 16,995
Owner occupied units 36.3%
Average number of people per household 2
Median year structure built 1938
Median value for units with a mortgage $1,907,600
Median value for units without a mortgage $1,665,300

Risk

Create a free account to unlock extended information for 421 Cornwall 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 421 Cornwall 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

Neighbors for 421 Cornwall Street, San Francisco

Here are the neighbors for 421 Cornwall Street, San Francisco.

Address Square feet Purchase date Purchase price
251 5th Ave, San Francisco 1,344 04/03/2025
213 4th Ave, San Francisco 3,728 12/27/2022
226 6th Ave, San Francisco 1,940
230 6th Ave, San Francisco 1,980 12/10/2015
234 6th Ave, San Francisco 2,553 02/12/2019 $1,575,000
250 6th Ave, San Francisco 1,299 08/21/2013
222 6th Ave, San Francisco 3,386 03/06/2017
415 Cornwall St, San Francisco 2,584 10/15/2025 $3,200,000
406 Clement St, San Francisco 6,000 02/22/2019
4345 California St, San Francisco 4,726 06/18/2025
407 Cornwall St, San Francisco 2,410 12/01/2011 $830,000
203 4th Ave, San Francisco 5,660 07/05/2018
4333 California St, San Francisco 1,255 06/13/2013
236 6th Ave, San Francisco 2,786 12/04/2025 $1,488,000
218 6th Ave, San Francisco 2,776 01/06/2021
249 5th Ave, San Francisco 2,096 10/30/2023
248 6th Ave, San Francisco 2,408 05/06/2025
211 4th Ave, San Francisco 2,620 03/31/2014
4327 California St, San Francisco 3,360 02/19/2021
4355 California St, San Francisco 6,222 09/30/2013

Nearby ZIP Codes for 421 Cornwall Street, San Francisco

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