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21 Alta Street, San Francisco, CA 94133 Property Information

21 Alta Street, San Francisco, CA 94133 Property Information

  • General
  • 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:
Eliza Theiss, Jun 23, 2026 NYC Resale Gains & Losses: Every Borough Made Money in 2025, Except Manhattan
In 2025, NYC home-sellers mostly made money. But, in Manhattan, resales came with losses — and it was apartments and recent buyers that absorbed them.
Laura Pop-Badiu, Jun 11, 2026 NYC Business Leaders on RTO: Survey Reveals Hybrid Still Dominates, Office Attendance Set to Rise
Hubble’s recent survey of 126 founders, CEOs and other decision-makers in New York City’s startup ecosystem revealed how local business leaders are approaching workplace strategy in 2026 and beyond.
Eliza Theiss, Jun 04, 2026 World Cup or Your Mortgage/Rent? Ticket Prices Rival Host City Housing Costs
World Cup ticket prices rival monthly housing expenses in the 11 U.S. host cities, with even the cheapest seats covering weeks or even months of rent or mortgage payments.
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Past Sales & Property History for 21 Alta Street, San Francisco

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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
$1,500,000
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

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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 (miles)
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 (miles)
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 (miles)
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 05/13/2026 $1,000,000

Nearby ZIP Codes for 21 Alta Street, San Francisco

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