San Francisco County  »  94109  »  Post St  »  640 Post St

640 Post Street, San Francisco, CA 94109 - Property report

Also known as: 640 Post St

Property image for 640 Post Street, San Francisco, CA 94109
static Mapbox map

Property type

Apartments 15 Units or More (A15)

Year built

1912

Lot sq. ft.

2,396

General Information

Address
Primary address
640 Post St
San Francisco, CA 94109
Zip code
94109
Neighborhood
Downtown District 8 - North East
County
San Francisco
Municipality
City of San Francisco
Parcel ID
0298-009

Owner

Find out who owns 640 Post Street, San Francisco, CA 94109. Uncover corporate and individual owners with a free account.

Tax
Tax year
2025-2026
Property tax
$16,095
Building
Property type
Apartments 15 Units or More
Building sq. ft.
19,560
Stories
9
Year built
1912
Building material
B
Rooms
86
Lot
Acreage
0.055
Lot sq. ft.
2,396
Zoning & use
Zoning
Qualified opportunity zone
Units
39

Area overview

Walk score
99 /100.  Walker's Paradise
Transit score
100 /100.  Rider's Paradise
Bike score
74 /100.  Very Bikeable
School district
San Francisco Unified School District

Ownership information for 640 Post Street, San Francisco, CA

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

Sales history for 640 Post Street, San Francisco, CA 94109

No recently recorded sales for this property.

More about San Francisco County property records.

Title documents

Date Type Amount Party 1 Party 2 Doc #
02/13/2023 Grant Deed XXXXXXX XXXXX X XXX XXX XXXX XXX
12/21/2020 Release of Lien XX XXXXXXXXXX XX XXXXXX XXXXXX XXXXXXX XXXXX X XXX XXXXX XXX
11/25/2020 NTC Lien XXXXXXX XXXXX X XXX XXXXX XXX XX XXXXXXXXXX XX XXXXXX XXXXXX
02/11/2004 Reconveyance XXXXXXXXXX XXXXXX XXXX XX XXXXXXX XXXXX X XXX
02/11/2004 Substitution Trustee XXXXXXX XXXXX X XXX XXXXXXXXXX XXXXXX XXXX XX
05/11/1999 Deed of Trust XXXXXXX XXXXX X XXX XXX XXXX XXXX XX
05/11/1999 Deed XXXXXXX XXXXX X XXX XXXXXXX XXXXX X XXX
01/18/1995 Deed XXXXXXX XXXXX X XXXXX X XXXXXXX XXX XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Property taxes for 640 Post Street, San Francisco, CA

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

Current property tax
Tax year
2025-2026
Property tax
$16,095
Recent tax assessments
Market value
$1,360,893
Land value
$288,778
Building value
$1,072,115

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 $1,360,893 1.1827 $16,095 +4.93%
2024-2025 $1,309,417 1.1714 $15,339 +1.63%
2023-2024 $1,281,535 1.1777 $15,093 +2.64%
2022-2023 $1,246,397 1.1797 $14,704 +0.97%
2021-2022 $1,231,547 1.18248 $14,563 -0.30%
2020-2021 $1,218,830 1.1984 $14,606 +3.57%
2019-2020 $1,195,117 1.1801 $14,104 +3.48%
2018-2019 $1,171,868 1.163 $13,629 +2.01%
2017-2018 $1,139,675 1.1723 $13,360 -0.27%
2016-2017 $1,132,756 1.1826 $13,396 +1.50%

Permit information for 640 Post Street, San Francisco, CA

Issued date Permit number Permit type Sub type Valuation Finaled date Status
02/17/2026
08/19/2025
07/08/2025
06/26/2025
02/27/2025

*Most recent permits on record for this property.

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.

Demographics by ZIP code

Total population
54,553
Median age
39.4
Average household income
$161,031
Family households
27.5%
People per household (average)
1.65
Occupied housing units
31,491
Owner-occupied units
16.8%
Median year structure built
1938
Median value mortgaged units
$1,285,400
Median value unmortgaged units
$1,325,700

Risk

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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

Access the detailed traffic volume map for 640 Post Street, San Francisco, CA 94109 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Frequently asked questions

What is the year built for 640 Post Street, San Francisco, CA 94109?

The development at 640 Post Street, San Francisco, CA 94109 was built in 1912.

What is the total square footage of 640 Post Street, San Francisco, CA 94109?

640 Post Street, San Francisco, CA 94109 has a total of 19,560 square feet.

What is the assessed value of 640 Post Street, San Francisco, CA 94109?

640 Post Street, San Francisco, CA 94109 is currently assessed at $1,360,893.

What are the property taxes for 640 Post Street, San Francisco, CA 94109?

The property taxes for 640 Post Street, San Francisco, CA 94109 total $16,095.

How many residential units does this building have?

This building has 39 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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