| RA-3 One Family Residence |
| RA-2 One Family Residence |
| RA-1 One Family Residence |
| R-20 One Family Residence |
| R-10 One Family Residence |
| R-7 1/2 One Family Residence |
| R-D Designed Residence* |
| R-6 One Family, Two Family Residence |
| RM-1 Multiple Family Low Density Design |
| R-5 Multiple Family Medium Density Design |
| R-MF Multiple Family Residence Design |
| R-H Multiple Family High Density Design |
| R-HD Residential High Density District |
| MR-D Mill River Design |
| P-D Planned Development |
| C-D Designed Commercial |
| IP-D Designed Industrial Park |
| MX-D Mixed Use Development |
| NX-D Neighborhood Mixed District |
| B-D Designed Business |
| CSC-D Designed Community Shopping Center |
| C-N Neighborhood Business |
| C-B Community Business |
| C-L Limited Business |
| C-I Intermediate Commercial |
| C-G General Commercial |
| CC Central City District |
| CW-D Coastal Water Dependent |
| DW-D Designed Waterfront Development |
| M-D Designed Industrial |
| M-L Light Industrial |
| HT-D High Technology District |
| M-G General Industrial |
| V-C Village Commercial District |
| TCDD Transportation Center Design District |
| HCDD Hospital Complex Design District |
| SRD-N South End Redevelopment District North |
| SRD-S South End Redevelopment District North |
| P Park |
| R-10/R-D One Family Residence with Design District Overlay |
| R-20/R-D One Family Residence with Design District Overlay |
| RA-1/R-D One Family Residence with Design District Overlay |
| RA-2/R-D One Family Residence with Design District Overlay |
