San Francisco County » 94131 » Flood Ave » 21 Flood Ave

21 Flood Avenue, San Francisco, CA 94131 - Property report

Also known as: 21 Flood Ave

Property image for 21 Flood Avenue, San Francisco, CA 94131

Property type

Apartment (1)

Year built

1908

Lot sq. ft.

2,352

Sale price

$275,000

General Information

Address

Primary address

21 Flood Ave
San Francisco, CA 94131

Zip code

94131

Neighborhood

Sunnyside

County

San Francisco

Municipality

City of San Francisco

Parcel ID

6776-001

Sales

Sale date

06/29/2018

Sale price

$275,000

Arm's length

Tax

Tax year

2026-2027

Property tax

$13,675

Tax per sq. ft.

Building

Property type

Apartment

Building sq. ft.

3,328

Stories

Year built

1908

Rooms

Bathrooms

Lot

Acreage

0.054

Zoning & use

Zoning

Residential- House, One Family (RH-1)

Units

Area overview

Walk score

82 /100. Very Walkable

Transit score

84 /100. Excellent Transit

Bike score

71 /100. Very Bikeable

School district

San Francisco Unified School District

Ownership

Ownership information for 21 Flood Avenue, San Francisco, CA

Property owner name

Registered owner

Source

Deed

Owner contact information

Phone number

Owner address

Documents

Sales history for 21 Flood Avenue, San Francisco, CA 94131

Sale date	Sale price	Buyer name	Seller name
06/29/2018	$275,000	XXXXX XXXXXXX; XXXXX XXXXXX X; XXXXX XXXXXX	XXXXX XXXXXX; XXXXX XXXXXX X
03/21/1988	$150,000	XXXXX XXXXXX	XXXXX

*Most recent sales on record for this property.

More about San Francisco County property records.

Title documents

Date	Type	Party 1	Party 2
06/05/2026	Revoc Order Abatement	XXX XXXXXXXXX XXXXXXXXXX XX XXXXXXXX XXXXXXXXXX XXX	XXXXX XXXXXX
06/05/2026	Revoc Order Abatement	XXX XXXXXXXXX XXXXXXXXXX XX XXXXXXXX XXXXXXXXXX XXX	XXXXX XXXXXX
06/05/2026	NTC Compliance	XXXXXXXXX XXXXXXX XXXXX	XXXXX XXXXXX
06/05/2026	NTC Compliance	XXX XXXXXXXXX XXXXXXXXXX XX XXXXXXXX XXXXXXXXXX XXX	XXXXX XXXXXX
07/16/2025	CNCL Lien Filed in Error	XX XXXXX XXXXX XXX XXXXX	XXXXX XXXXXX
07/16/2025	CNCL Lien Filed in Error	XX XXXXX XXXXX XXX XXXXX	XXXXX XXXXXX
06/20/2025	NTC Lien	XXXXX XXXXXX	XX XXXXX XXXXX XXX XXXXX
06/20/2025	NTC Lien	XXXXX XXXXXX	XX XXXXX XXXXX XXX XXXXX
07/25/2024	NTC Special Restrictions	XXXXX XXXXXXX	XXXXXXXXXXXX XXXXXXXXXX
06/13/2022	NTC Decision	XXXXX XXXXXX	XXXX-XXXXXXXX XXXXXXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21 Flood 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

Property tax

$13,675

Tax per sq. ft.

Recent tax assessments

Market value

$1,156,237

Land value

$792,315

Building value

$363,922

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	$1,133,500	1.1827	$13,406	+2.98%
2024-2025	$1,111,295	1.1714	$13,018	+1.45%
2023-2024	$1,089,525	1.1777	$12,831	+1.83%
2022-2023	$1,068,172	1.1797	$12,601	+1.75%
2021-2022	$1,047,274	1.18248	$12,384	-0.36%
2020-2021	$1,037,127	1.1984	$12,429	+3.58%
2019-2020	$1,016,807	1.1801	$11,999	+109.24%
2018-2019	$493,095	1.163	$5,735	+1.19%
2017-2018	$483,442	1.1723	$5,667	+1.11%
2016-2017	$473,979	1.1826	$5,605	+1.52%

Permits

Permit information for 21 Flood Avenue, San Francisco, CA

Issued date	Permit number	Permit type	Sub type	Valuation	Finaled date	Status
10/08/2025
09/19/2025
08/13/2024
10/26/2020
10/26/2020

*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

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 21 Flood Avenue, San Francisco, CA 94131 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)
St. Finn Barr	NR	Private	K-8	239	0.34
Corpus Christi School	NR	Private	K-8	0	0.38
Glen Park Elementary School	3	Public	K-5	308	0.40
Sunnyside Elementary School	6	Public	K-5	327	0.40
St John S Elementary School	NR	Private	K-8	231	0.41
St. John the Evangelist School	NR	Private	K-8	250	0.41
Golden Bridges School	NR	Private	K-6	97	0.49
San Francisco Community Alternative School	5	Public	K-8	275	0.56
San Miguel Children Center	NR	Public		129	0.61
Monroe Elementary School	6	Public	K-5	528	0.67

Nearest middle schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
St. Finn Barr	NR	Private	K-8	239	0.34
Wen Jian Ying School	NR	Private	8-12	9	0.36
Corpus Christi School	NR	Private	K-8	0	0.38
St John S Elementary School	NR	Private	K-8	231	0.41
St. John the Evangelist School	NR	Private	K-8	250	0.41
San Francisco Community Alternative School	5	Public	K-8	275	0.56
Denman (James) Middle School	3	Public	6-8	816	0.57
San Miguel Children Center	NR	Public		129	0.61

Nearest high schools

Name	Rating	Type	Grade range	No of students	Distance (miles)
Wen Jian Ying School	NR	Private	8-12	9	0.36
Archbishop Riordan High School	NR	Private	9-12	691	0.50
City Arts & Leadership Academy	5	Charter	9-12	473	0.59
Balboa High School	8	Public	9-12	1,278	0.60
San Miguel Children Center	NR	Public		129	0.61
Lick-Wilmerding High School	NR	Private	9-12	527	0.66
Teknion Peri Sophia Academy	NR	Private	K-12	6	1.03
Oaks Christian Academy	NR	Private	3-12	0	1.11
Jordan (June) School For Equity	4	Public	9-12	201	1.13
Academy (The)- SF @Mcateer	6	Public	9-12	320	1.15

Nearby ZIP codes for 21 Flood Avenue, San Francisco, CA

Frequently asked questions

What is the year built for 21 Flood Avenue, San Francisco, CA 94131?

The development at 21 Flood Avenue, San Francisco, CA 94131 was built in 1908.

What is the total square footage of 21 Flood Avenue, San Francisco, CA 94131?

21 Flood Avenue, San Francisco, CA 94131 has a total of 3,328 square feet.

When was 21 Flood Avenue, San Francisco, CA 94131 last sold and what was the sale price?

21 Flood Avenue, San Francisco, CA 94131 was last sold on 06/29/2018 for $275,000.

What is the assessed value of 21 Flood Avenue, San Francisco, CA 94131?

21 Flood Avenue, San Francisco, CA 94131 is currently assessed at $1,133,500.

What are the property taxes for 21 Flood Avenue, San Francisco, CA 94131?

The property taxes for 21 Flood Avenue, San Francisco, CA 94131 total $13,405.

How many residential units does this building have?

This building has 2 residential unit(s).

Disclaimer

All data comes from government sources. No attempt has been made to validate it. No attempt has been made to validate the accuracy of the programming of this website.

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.