Apartment Buildings O
<Date> means it is an approximate date.
| Business |
Address |
From |
To |
| Oliveto | 236-238 Academy Street | 1913 | After 1957 |
| Oneida | 299 Hunterdon Street | 1909 | After 1957 |
| Oraton | 96-98 Oraton Street | (1915-1920) | After 1957 |
| Orchard | 150 Orchard Street | (1915-1920) | After 1957 |
| Oriental | 291 Belleville Avenue | Before 1908 | After 1957 |
| Oriental | 71 Oriental Street | (1920-1925) | After 1957 |
| Orleans | 42 Orleans Street | Before 1908 | (1930-1935) |
| Ormond | 177-179 Hillside Avenue | (1915-1920) | After 1957 |
| Osborne | 305 Osborne Terrace | (1930-1935) | After 1957 |
| Osborne | 585 Warren Street | (1920-1925) | (1930-1935) |
| Osborne Hall | 53 Osborne Terrace | 1915 | After 1957 |
| Otto E. Kretchmer Homes | 314 Dayton Street | (1943-1957) | After 1957 |
| Oxford | 133-135 Washington Avenue | 1915 | After 1957 |
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