San Francisco County  »  94116  »  Alton Ave  »  20 Alton Ave

20 Alton Avenue, San Francisco, CA 94116 - Property report

Also known as: 20 Alton Ave

Property image for 20 Alton Avenue, San Francisco, CA 94116
static Mapbox map

Property type

Single Family Residence (31)

Year built

1949

Lot sq. ft.

3,703

Sale price

$2,250,000

General Information

Address
Primary address
20 Alton Ave
San Francisco, CA 94116
Zip code
94116
Neighborhood
Forest Hill
County
San Francisco
Municipality
City of San Francisco
Parcel ID
2817-018

Owner

Find out who owns 20 Alton Avenue, San Francisco, CA 94116. Uncover corporate and individual owners with a free account.

Sales
Sale date
03/30/2016
Sale price
$2,250,000
Arm's length
Tax
Tax year
2026-2027
Base tax
$32,132
Current property tax
$32,049
Tax per sq. ft.
$21
Building
Property type
Single Family Residence
Building sq. ft.
1,534
Stories
2
Year built
1949
Rooms
6
Bedrooms
3
Bathrooms
3
Lot
Acreage
0.085
Zoning & use
Zoning
Residential- House, One Family- Detached (RH-1(D))
Units
1

Area overview

Walk score
50 /100.  Car-Dependent
Transit score
74 /100.  Excellent Transit
Bike score
46 /100.  Somewhat Bikeable
School district
San Francisco Unified School District
Ownership

Ownership information for 20 Alton Avenue, San Francisco, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 20 Alton Avenue, San Francisco, CA 94116

Sale date Sale price Buyer name Seller name
03/30/2016 $2,250,000 XXXXXXX XXXXXXXXX; XXXX XXXXXXX; XXXX XXXXXXXXX XXXXXXX XXXXXX XXXXXX X; XXXXXX XXXXXXX X
04/02/2015 $2,075,000 XXXXXX XXXXXX X; XXXXXX XXXXXXX X XXXX XXXXX; XXX XXXXXX; XXX XXXX XXXXXX XXXXX
02/06/2009 $1,065,000 XXXX XXXXX; XXX XXXXXX XXXXXXX XXXXXXX X; XXXXXXX XXXXX; XXXXXXX XXXXXXX X & XXXXX

*Most recent sales on record for this property.

More about San Francisco County property records.

Title documents

Date Type Amount Party 1 Party 2 Doc #
10/31/2024 Deed of Trust XXXXXXX XXXXXXXXX XXXXXX XXXX
12/15/2020 Reconveyance XXXXX XXXXXXXX XXXXX XXX XX XXXXXXX XXXXXXXXX
12/15/2020 Substitution Trustee XXXX XXX XXXXX XXXXXXXX XXXXX XXX XX
11/30/2020 Deed of Trust XXXXXXX XXXXXXXXX XXXX XXX
04/11/2016 Substitution Trustee XXXXX XXXXXXXX XXXX XXXXXX XXXXXX X
04/11/2016 Substitution Trustee XXXXXXXX XXXXXXXX XXXXX XXX XX XXXXX XXXXXXXX XXXX
03/30/2016 Deed of Trust XXXXXXX XXXXXXXXX XXXX XXX
03/30/2016 Grant Deed XXXXXX XXXXXX X XXXXXXX XXXXXXXXX
03/03/2016 Residential Energy Inspctn XXXXXX XXXXXX
05/14/2015 Reconveyance XXXXXXXXXXXX XXXX XX XXXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20 Alton Avenue, San Francisco, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2026-2027
Base tax
$32,132
Current property tax
$32,049
Tax per sq. ft.
$21
Recent tax assessments
Market value
$2,716,807
Land value
$1,901,765
Building value
$815,042

More about San Francisco County Property Taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $2,663,538 1.1827 $31,502 +2.98%
2024-2025 $2,611,313 1.1714 $30,589 +1.45%
2023-2024 $2,560,112 1.1777 $30,150 +1.83%
2022-2023 $2,509,915 1.1797 $29,609 +1.76%
2021-2022 $2,460,702 1.18248 $29,097 -0.31%
2020-2021 $2,435,471 1.1984 $29,187 +3.58%
2019-2020 $2,387,717 1.1801 $28,177 +3.50%
2018-2019 $2,340,900 1.163 $27,225 +1.19%
2017-2018 $2,295,000 1.1723 $26,904 +7.99%
2016-2017 $2,106,642 1.1826 $24,913 +84.61%
Permits

Permit information for 20 Alton Avenue, San Francisco, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
06/07/2026
04/01/2026
03/23/2026
10/20/2025
07/01/2025

*Most recent permits on record for this property.

Neighborhood

San Francisco residential market stats

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.

Median sale price

$1,500,000

15.4% Y-o-Y

Median price/sq. ft.

$1,155

11.2% Y-o-Y

San Francisco county median sale price

$1,500,000

15.4% Y-o-Y

Check out recently sold homes in San Francisco and see how their prices compare.

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map
Crime incidents map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 20 Alton Avenue, San Francisco, CA 94116 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Clarendon Alternative Elementary School 8 Public K-5 523 0.41
West Portal Elementary School 8 Public K-5 583 0.54
Maria Montessori School NR Private K-5, 8 0 0.62
St. Brendan Elementary School NR Private K-8 311 0.62
St Brendan School NR Private K-8 306 0.62
Yu (Alice Fong) Elementary School 9 Public K-8 586 0.70
Oaks Christian Academy NR Private 3-12 0 0.74
Sunset Progressive School (Will open: Fall 2015) NR Private K-1 0 0.93
Miraloma Elementary School 7 Public K-5 351 1.04
Rooftop Elementary School 6 Public K-8 536 1.10
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Hoover (Herbert) Middle School 7 Public 6-8 938 0.49
S.F. County Court Woodside Learning Center 1 Public 6-12 8 0.61
Maria Montessori School NR Private K-5, 8 0 0.62
St. Brendan Elementary School NR Private K-8 311 0.62
St Brendan School NR Private K-8 306 0.62
Yu (Alice Fong) Elementary School 9 Public K-8 586 0.70
Oaks Christian Academy NR Private 3-12 0 0.74
St. Cecilia Elementary School NR Private K-8 587 0.98
Rooftop Elementary School 6 Public K-8 536 1.10
Aptos Middle School 6 Public 6-8 848 1.44
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
S.F. County Court Woodside Learning Center 1 Public 6-12 8 0.61
Oaks Christian Academy NR Private 3-12 0 0.74
Asawa (Ruth) San Francisco School Of The Arts, A Public School. 10 Public 9-12 679 0.83
Academy (The)- SF @Mcateer 6 Public 9-12 320 0.83
Independence High School 5 Public 9-12 205 0.90
Lincoln (Abraham) High School 7 Public 9-12 1,997 1.04
San Francisco Waldorf High School NR Private PK-12 481 1.12
Woodside International School NR Private 9-12 18 1.13
San Francisco High School of the Arts NR Private 6-11 23 1.48
Edgewood Center For Children & Families NR Private 3-12 28 1.56

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 20 Alton Avenue, San Francisco, CA

2 Castenada Ave, San Francisco 74 Ventura Ave, San Francisco 40 Alton Ave, San Francisco 412 Pacheco St, San Francisco 418 Pacheco St, San Francisco 48 Alton Ave, San Francisco 60 Alton Ave, San Francisco 10 Alton Ave, San Francisco 70 Alton Ave, San Francisco 406 Pacheco St, San Francisco 80 Ventura Ave, San Francisco 68 Ventura Ave, San Francisco 44 Ventura Ave, San Francisco 30 Alton Ave, San Francisco 400 Pacheco St, San Francisco 50 Castenada Ave, San Francisco 50 Ventura Ave, San Francisco 424 Pacheco St, San Francisco 64 Ventura Ave, San Francisco 60 Ventura Ave, San Francisco

Nearby ZIP codes for 20 Alton Avenue, San Francisco, CA

94102, San Francisco County, CA 94103, San Francisco County, CA 94108, San Francisco County, CA 94109, San Francisco County, CA 94110, San Francisco County, CA 94112, San Francisco County, CA 94114, San Francisco County, CA 94115, San Francisco County, CA 94118, San Francisco County, CA 94121, San Francisco County, CA 94122, San Francisco County, CA 94123, San Francisco County, CA 94127, San Francisco County, CA 94129, San Francisco County, CA 94131, San Francisco County, CA 94134, San Francisco County, CA

Frequently asked questions

What is the year built for 20 Alton Avenue, San Francisco, CA 94116?

The development at 20 Alton Avenue, San Francisco, CA 94116 was built in 1949.

What is the total square footage of 20 Alton Avenue, San Francisco, CA 94116?

20 Alton Avenue, San Francisco, CA 94116 has a total of 1,534 square feet.

When was 20 Alton Avenue, San Francisco, CA 94116 last sold and what was the sale price?

20 Alton Avenue, San Francisco, CA 94116 was last sold on 03/30/2016 for $2,250,000.

What is the assessed value of 20 Alton Avenue, San Francisco, CA 94116?

20 Alton Avenue, San Francisco, CA 94116 is currently assessed at $2,716,807.

What are the property taxes for 20 Alton Avenue, San Francisco, CA 94116?

The property taxes for 20 Alton Avenue, San Francisco, CA 94116 total $32,131.

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