San Francisco County  »  94121  »  18th Ave  »  509 18th Ave

509 18th Avenue, San Francisco, CA 94121 - Property report

Also known as: 509 18th Ave

Property image for 509 18th Avenue, San Francisco, CA 94121
static Mapbox map

Property type

Apartment (1)

Year built

1917

Lot sq. ft.

2,047

Sale price

$249,000

General Information

Address
Primary address
509 18th Ave
San Francisco, CA 94121
Alternate address(es)
511 18th Ave
Zip code
94121
Neighborhood
Central Richmond
County
San Francisco
Municipality
City of San Francisco
Parcel ID
1561-001B

Owner

Find out who owns 509 18th Avenue, San Francisco, CA 94121. Uncover corporate and individual owners with a free account.

Sales
Sale date
06/23/2005
Sale price
$249,000
Arm's length
Tax
Tax year
2026-2027
Base tax
$12,538
Current property tax
$12,455
Tax per sq. ft.
$6
Building
Property type
Apartment
Building sq. ft.
2,090
Stories
2
Year built
1917
Rooms
8
Bedrooms
4
Bathrooms
2
Lot
Acreage
0.047
Zoning & use
Zoning
Residential- House, Two Family (RH-2)
Units
2

Area overview

Walk score
96 /100.  Walker's Paradise
Transit score
72 /100.  Excellent Transit
Bike score
85 /100.  Very Bikeable
School district
San Francisco Unified School District
Ownership

Ownership information for 509 18th Avenue, San Francisco, CA

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

Sales history for 509 18th Avenue, San Francisco, CA 94121

Sale date Sale price Buyer name Seller name
06/23/2005 $249,000 XXX XXXXXX; XX XXXXXXX XX XXXXXX
09/23/2003 $731,000 XXX XXXXXX; XX XXXXXX; XX XXXXXXX XXXXXXX XXXXXXX X; XXXXXXX XXXXXXX X & XXXXXXXX X; XXXXXXX XXXXXXX X; XXXXXXX-XXXXXXX XXXXXXXX X
03/04/1999 $509,500 XXXXXXX XXXXXXX X; XXXXXXX XXXXXXX X & XXXXXXXX X; XXXXXXX XXXXXXX X; XXXXXXX-XXXXXX XXXXXXXX X XXXXX XXXXXXX X; XXXXX 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 #
06/12/2023 Grant Deed XX XXXXXXX XX XXXXXXX
08/03/2021 Release of Lien XX XXXXXXXXXX XX XXXXXX XXXXXX XX XXXXXXX XXX XXX XXXXXX
12/21/2020 NTC Lien XX XXXXXXX XX XXXXXXXXXX XX XXXXXX XXXXXX
11/16/2020 Reconveyance XXXX XXXXXXXX XXXX XXX X X XXXXXX XXXXX XXXXXXX XXXX XXX
11/16/2020 Substitution Trustee XXXX XXXXXXXX XXXX XXX X X XXXXXX XXXXX XXXXXXX XXXX XXX
11/13/2020 Reconveyance XXXXXXXXXX XXXXXXXXXXXX XX XXX XXXXXX
10/26/2020 Deed of Trust XXX XXXXXX XXXX XXX
10/26/2020 Grant Deed XXX XXXXXX XXX XXXXXX
07/16/2007 Deed of Trust XXX XXXXXX XXXXXXXXXX XXXXXX XXXX XX
06/23/2005 Deed XX XXXXXX XXX XXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 509 18th 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
$12,538
Current property tax
$12,455
Tax per sq. ft.
$6
Recent tax assessments
Market value
$1,060,118
Land value
$636,071
Building value
$424,047

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 $1,039,313 1.1827 $12,292 +2.98%
2024-2025 $1,018,935 1.1714 $11,936 +1.46%
2023-2024 $998,929 1.1777 $11,764 +1.83%
2022-2023 $979,344 1.1797 $11,553 +1.76%
2021-2022 $960,143 1.18248 $11,353 -0.31%
2020-2021 $950,304 1.1984 $11,388 +3.58%
2019-2020 $931,672 1.1801 $10,995 +3.50%
2018-2019 $913,406 1.163 $10,623 +1.19%
2017-2018 $895,498 1.1723 $10,498 +1.11%
2016-2017 $877,942 1.1826 $10,383 +1.52%
Permits

Permit information for 509 18th Avenue, San Francisco, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
08/04/1994
01/26/1990

*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 509 18th Avenue, San Francisco, CA 94121 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)
Argonne Elementary School 6 Public K-5 361 0.21
Lisa Kampner Hebrew Academy NR Private K-12 37 0.28
St. Monica School NR Private K-8 209 0.35
San Francisco Schoolhouse NR Private K-7 60 0.36
Alamo Elementary School 8 Public K-5 410 0.41
Sutro Elementary School 9 Public K-5 219 0.48
St. John Of San Francisco Orthodox Acade NR Private K-12 50 0.50
Zion Lutheran School NR Private K-8 160 0.54
Mccoppin (Frank) Elementary School 7 Public K-5 215 0.73
Peabody (George) Elementary School 8 Public K-5 269 0.78
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Lisa Kampner Hebrew Academy NR Private K-12 37 0.28
St. Monica School NR Private K-8 209 0.35
San Francisco Schoolhouse NR Private K-7 60 0.36
Erikson School NR Private 6-12 7 0.42
Challenge To Learning NR Private 7-12 0 0.49
Presidio Middle School 7 Public 6-8 978 0.71
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Lisa Kampner Hebrew Academy NR Private K-12 37 0.28
San Francisco County Rop School NR Public 10-12 0 0.40
Erikson School NR Private 6-12 7 0.42
Challenge To Learning NR Private 7-12 0 0.49
St. John Of San Francisco Orthodox Acade NR Private K-12 50 0.50
Olympia Institute NR Private 6-11 8 0.53
Washington (George) High School 9 Public 9-12 2,036 0.77
Independence High School 5 Public 9-12 205 1.27
Wallenberg (Raoul) Traditional High School 7 Public 9-12 549 1.70

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

Neighbors for 509 18th Avenue, San Francisco, CA

505 18th Ave, San Francisco 516 18th Ave, San Francisco 2701 Anza St, San Francisco 508 18th Ave, San Francisco 522 18th Ave, San Francisco 519 18th Ave, San Francisco 518 18th Ave, San Francisco 531 18th Ave, San Francisco 543 18th Ave, San Francisco 547 18th Ave, San Francisco 515 18th Ave, San Francisco 551 18th Ave, San Francisco 2643 Anza St, San Francisco 535 18th Ave, San Francisco 539 18th Ave, San Francisco 523 18th Ave, San Francisco 2629 Anza St, San Francisco 512 18th Ave, San Francisco 527 18th Ave, San Francisco 2623 Anza St, San Francisco

Nearby ZIP codes for 509 18th Avenue, San Francisco, CA

94102, San Francisco County, CA 94103, San Francisco County, CA 94104, 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 94116, San Francisco County, CA 94118, 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 94133, San Francisco County, CA

Frequently asked questions

What is the year built for 509 18th Avenue, San Francisco, CA 94121?

The development at 509 18th Avenue, San Francisco, CA 94121 was built in 1917.

What is the total square footage of 509 18th Avenue, San Francisco, CA 94121?

509 18th Avenue, San Francisco, CA 94121 has a total of 2,090 square feet.

When was 509 18th Avenue, San Francisco, CA 94121 last sold and what was the sale price?

509 18th Avenue, San Francisco, CA 94121 was last sold on 06/23/2005 for $249,000.

What is the assessed value of 509 18th Avenue, San Francisco, CA 94121?

509 18th Avenue, San Francisco, CA 94121 is currently assessed at $1,039,313.

What are the property taxes for 509 18th Avenue, San Francisco, CA 94121?

The property taxes for 509 18th Avenue, San Francisco, CA 94121 total $12,291.

How many residential units does this building have?

This building has 2 residential unit(s).

Disclaimer

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Do not rely on this report to support investment decisions. The only authoritative source for the information in this report is the government agencies from which the data was acquired.

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