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21 Alta Street, San Francisco, CA 94133 Property Information

21 Alta Street, San Francisco, CA 94133 Property Information

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  • Owner
  • Documents
  • Tax
  • Neighborhood
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21 Alta Street, San Francisco, CA 94133
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Address

Primary address 21 Alta Street, San Francisco
Zip code 94133
County San Francisco
Neighborhood Telegraph Hill
Parcel ID 0106-023

Sales & Tax Overview for 21 Alta 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 02/27/2026
Sale price $995,500
Arm's length
Property tax $32,576

Lot & Building Information for 21 Alta Street, San Francisco

Building sqft 2,179
Building class TIC Building 4 Units or Less (TIC)
Acreage 0.031
Units 4
Year built 1905
Stories 3
Bedrooms 2
Bathrooms 6
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Residential- House, Three Family (RH-3)
School district San Francisco Unified School District

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Other Property Data for 21 Alta Street, San Francisco

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About 21 Alta Street, San Francisco

What is the year built & the total sq. ft. for 21 Alta Street, San Francisco, CA 94133?

21 Alta Street, San Francisco, CA 94133 was built in 1905 and has a total of 2,179 square feet.

What is the assessed value of 21 Alta Street, San Francisco, CA 94133 and the property tax paid?

Assessed at $2,754,399, the tax amount paid for 21 Alta Street, San Francisco, CA 94133 is $32,576.

When was 21 Alta Street, San Francisco, CA 94133 last sold and what was the last sale price?

21 Alta Street, San Francisco, CA 94133 was last sold in 02/27/2026 for $995,500.

How many residential units does this building have?

This building has 4 residential unit(s).

Ownership Information

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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.
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Past Sales & Property History for 21 Alta Street, San Francisco

Create a free account to view the complete sales history for 21 Alta Street, San Francisco, including title documents, transfer conditions, mortgages and liens.

Sale date Sale price Buyer name Seller name
02/27/2026 $995,500
01/07/2026 $500,000
02/28/2025 $399,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 21 Alta 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
04/09/2026 Reconveyance
04/09/2026 Substitution Trustee
03/26/2026 Reconveyance
03/26/2026 Substitution Trustee
02/27/2026 Deed of Trust 03/01/2056
02/27/2026 Grant Deed
01/07/2026 Deed of Trust 02/01/2056
01/07/2026 Grant Deed
01/07/2026 Power Attorney
02/28/2025 Asgt Rents/Leases
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R: Recorded date
D: Document date

Property Taxes for 21 Alta Street, San Francisco

Access detailed property tax data for 21 Alta 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 $32,576
Market value $2,754,399

Assessment History for 21 Alta Street, San Francisco

Here's the assessment & property tax history for 21 Alta 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 $2,754,399 1.1827 $32,576 +7.04%
2024-2025 $2,598,030 1.1714 $30,433 +1.44%
2023-2024 $2,547,420 1.1777 $30,001 +16.79%
2022-2023 $2,177,510 1.1797 $25,688 +1.76%
2021-2022 $2,134,820 1.18248 $25,244 -0.35%

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 21 Alta 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 21 Alta 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)
Garfield Elementary School 7 Public K-5 194 0.18
Chin (John Yehall) Elementary School 9 Public K-5 260 0.20
Sts. Peter And Paul K-8 NR Private K-9 225 0.37
Sterne School NR Private 4-12 204 0.39
Sterne School NR Private 4-12 208 0.39

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Fusion Academy San Francisco NR Private 6-12 55 0.12
Fusion Academy Sf: San Francisco NR Private 6-12 50 0.12
Sts. Peter And Paul K-8 NR Private K-9 225 0.37
Sterne School NR Private 4-12 204 0.39
Sterne School NR Private 4-12 208 0.39

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Fusion Academy San Francisco NR Private 6-12 55 0.12
Fusion Academy Sf: San Francisco NR Private 6-12 50 0.12
Sterne School NR Private 4-12 204 0.39
Sterne School NR Private 4-12 208 0.39
Tahour Academy NR Private 5-12 6 0.57

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

Neighbors for 21 Alta Street, San Francisco

Here are the neighbors for 21 Alta Street, San Francisco.

Address Square feet Purchase date Purchase price
9 Alta St, San Francisco 05/13/2013
40 Alta St, San Francisco 3,461 04/19/2016
34 Alta St, San Francisco 2,435
23 Alta St, San Francisco 1,825 05/16/2018
33 Alta St, San Francisco 1,188 04/07/2003
267 Filbert St, San Francisco 3,351 04/04/2016
29 Alta St, San Francisco 1,050 12/31/2018 $1,300,000
1304 Montgomery St, San Francisco 1,290 09/08/2022
22 Alta St, San Francisco 06/29/2007 $850,000
1310 Montgomery St, San Francisco 2,412 06/04/2018
60 Alta St, San Francisco 2,285 03/17/2006 $2,000,000
1306 Montgomery St, San Francisco 4,905 09/08/2022
279 Filbert St, San Francisco 2,829 07/30/2019 $2,876,500
273 Filbert St, San Francisco 3,150 06/12/2023 $1,400,000
31 Alta St, San Francisco 1,782 06/07/2017
1308 Montgomery St, San Francisco 3,285 08/02/2021 $3,800,000
27 Alta St, San Francisco 2,448 08/20/2019
19 Alta St, San Francisco 2,041 07/01/2025
50 Alta St, San Francisco 3,461 04/19/2016
25 Alta St, San Francisco 2,450 01/28/2021

Nearby ZIP Codes for 21 Alta Street, San Francisco

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