3809 20th St is a multi-family property in the city of San Francisco, California. It is located in the San Francisco County region of the United States, and shares postal code 94114.
This location is a total of 17,552 square feet, has 3 floors, roof access, was built in 1922, and has a floor area ratio of 2.309. The property has 25 residential units, a 7,600 square foot lot area, and is zoned as RM1.
3809 20th St
Multi-Family
1922
RM1
17,552 sq ft
7,600 sq ft
3
1
2.309
25
Yes
No
6075020600
1/24/2026
11/14/2025