| Pioneer Warehouse | |
| Address: | 311 4th Avenue |
| Location City: | San Diego |
| Location Country: | United States |
| Opened Date: | 1918 |
| Destruction Date: | --> |
| Unit Count: | --> |
Pioneer Warehouse is a historic 1918 building, located at 311 4th Avenue, in San Diego, California. The warehouse was being converted into apartments in 1990.[1]