| F-P Floodplain | 3 ac | 200 ft | 50 / 50 / 50 ft | 35 ft | — | |
| R-1A Single-Family Residential | 1 ac | 200 ft | 35 / 20 / 35 ft | 35 ft | — | |
| R-1B Single-Family Residential | 20,000 sf | 100 ft | 25 / 10 / 25 ft | 35 ft | — | |
| R-1C Single-Family Residential | 15,000 sf | 80 ft | 25 / 10 / 25 ft | 35 ft | — | |
| R-1D Single-Family Residential | 10,000 sf | 80 ft | 25 / 7 / 25 ft | 35 ft | — | |
| R-1E Single-Family Residential | 7,000 sf | 70 ft | 25 / 7 / 25 ft | 35 ft | — | |
| R-2 Multi-Family Residential | — | 200 ft | 25 / 25 / 25 ft | 35 ft | — | Lot area is 5,000 sf per family. |
| S-D/OT Special District/Old Town Cottleville | — | — | — | 35 ft | — | 35 ft or 2.5 stories. No minimum lot area. Yards follow the existing layout, approved case by case by P&Z. R-1/R-2 uses permitted; commercial uses conditional. |
| C-1 Light Commercial Office | — | — | 25 / 10 / 15 ft | 20 ft | — | No minimum lot size or width. Street side setback 25 ft. No permanent outdoor storage. Commercial greenbelt: 15 ft landscaped buffer with 6 ft screen next to residential zoning. |
| C-2 Limited Commercial Services | — | — | 30 / 15 / 20 ft | 30 ft | — | No minimum lot size or width. Street side setback 30 ft. Commercial greenbelt: 15 ft landscaped buffer with 6 ft screen next to residential zoning. |
| C-3 General Commercial Retail | — | — | 35 / 20 / 25 ft | 40 ft | — | No minimum lot size or width. Street side setback 35 ft. Commercial greenbelt: 15 ft landscaped buffer with 6 ft screen next to residential zoning. |
| C-4 Regional Commercial Retail | 25 ac | — | 40 / 40 / 40 ft | 60 ft | — | 25-acre minimum. Street side setback 20 ft. Shopping-center site plan approval; construction must start within 2 years of rezoning. Commercial greenbelt: 15 ft landscaped buffer with 6 ft screen next to residential zoning. |
| C-5 Commercial Office (General Public) | — | — | 40 / 40 / 40 ft | 60 ft | — | Public, institutional, health care, school and church uses. No minimum lot size or width. Street side setback 20 ft. Commercial greenbelt: 15 ft landscaped buffer with 6 ft screen next to residential zoning. |
| I-1 Light Industrial | — | — | 30 / 40 / 40 ft | 45 ft | — | Side 10 ft and rear 15 ft, or 40 ft next to residential. No minimum lot area. Height over 45 ft needs P&Z review, plus 1 ft setback per 2 ft over 45 next to residential. Open storage up to 40% of lot. 20 ft greenbelt next to residential. |
| I-2 Heavy Industrial | — | — | 30 / 70 / 70 ft | 45 ft | — | Side 10 ft and rear 15 ft, or 70 ft next to residential. Height over 45 ft needs P&Z review, plus 1 ft setback per 2 ft over 45 next to residential. Open storage up to 60% of lot. |
| RD Recreational | 1 ac | — | 20 / 10 / 10 ft | — | — | No minimum lot width. Street side setback 20 ft. No height limit stated. 25 ft vegetated buffer along natural watercourses; 10 ft greenbelt next to residential. |
| SD/C-CC College Campus | — | — | 40 / 40 / 40 ft | 45 ft | — | Parking setback 40 ft. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-R1 College Single-Family | — | — | 35 / 15 / 25 ft | 35 ft | — | No lot area or width stated in Art. IV. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-R2 College Two-Family | — | — | 30 / 25 / 25 ft | 35 ft | — | No lot area or width stated in Art. IV. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-R3 College Multi-Family | — | 200 ft | 25 / 25 / 25 ft | 45 ft | 14 du/ac | Lot area 3,111 sf per family, §405.213(D). 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-C1 College Pedestrian Commercial / Light Office | — | — | 4 / 0 / 0 ft | 35 ft | — | Build-to style: 4 ft front, 0 ft sides and rear; parking 0 ft. Exempt from the 40 ft arterial setback. |
| SD/C-C2 College General Commercial | — | — | 25 / 25 / 25 ft | 35 ft | — | Parking setback 15 ft. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-C3 College General Commercial Retail | — | — | 25 / 25 / 25 ft | 35 ft | — | Parking setback 15 ft. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-C5 College General Public | — | — | 30 / 30 / 30 ft | 40 ft | — | Parking setback 20 ft. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-I1 College Light Industrial Park | — | — | 35 / 15 / 15 ft | 45 ft | — | Parking setback 35 ft front, 10 ft side/rear. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-PO College Park and Open Space | — | — | 70 / 70 / 70 ft | 35 ft | — | Parking setback 45 ft. 40 ft building and parking setback from Mid Rivers Mall Dr and St. Peters-Cottleville Rd. Taller buildings allowed with Board of Aldermen site plan review and 1 ft extra setback per ft over the limit, §405.270. |
| SD/C-UC College Urban Corridor (overlay) | — | — | — | — | — | Overlay; underlying district rules apply. Buildings 30 ft and parking 25 ft from Cottleville Pkwy, Mid Rivers Mall Dr and St. Peters-Cottleville Rd (except R-1A). |
| PUD Planned Unit Development | — | — | — | — | — | Standards set by the approved PUD plan; see Article V (incl. multiple-family PUDs). |
