525–555 20th Street
Industrial building · Potrero Hill
37.7606, −122.3856
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Current occupant
Little Sweet
555 20th Street
Cafe
Get $20 at Blackbird Referral link. Blackbird is mobile-only — download the app, then check in at this restaurant.
Permits on file
None
Historic district
Union Iron Works
Significant 1884–1945
- Listed on the California and National Registers
- Not a city landmark district
Nearby
- 1309 20th Street Same street