Setbacks in Columbia, TN

CD-2 principal building setbacks: front 30 ft min (principal frontage), 30 ft min secondary frontage, side 20 ft min each side, rear 30 ft min or 15 ft min from the centerline of a rear alley. Accessory buildings: front 20 ft min behind the principal building front setback, 30 ft min secondary frontage, side 20 ft min, rear 5 ft min. Corner and through lots apply frontage rules in Section 4.3.3; slopes over 10 percent may qualify for administrative front setback relief under Section 4.3.4.A.2.

CD-3L principal building setbacks: front 30 ft min (principal frontage), 30 ft min secondary frontage, side 12 ft min, rear 30 ft min or 15 ft min from the centerline of a rear alley. Accessory buildings: front 20 ft min behind the principal building frontage, 30 ft min secondary frontage, side 10 ft min, rear 5 ft min or 15 ft min from the alley centerline.

CD-3 principal building setbacks: front 25 ft min (principal frontage), 20 ft min secondary frontage, side 8 ft min, rear 25 ft min or 15 ft min from the centerline of a rear alley. Accessory buildings: front 20 ft min behind the principal building frontage, 10 ft min secondary frontage, side 5 ft min, rear 5 ft min or 15 ft min from the alley centerline.

CD-4 uses a build-to range at the front: principal building front setback 6 ft min to 20 ft max on both principal and secondary frontages. Side setback 0 ft min between individual townhouse and duplex units, otherwise 6 ft min. Rear setback 3 ft min or 15 ft min from the centerline of a rear alley. Accessory buildings: front 20 ft min behind the principal building frontage, secondary frontage 6 ft min, side 0 ft min, rear 3 ft min or 15 ft from the alley centerline.

CD-4C places buildings close to the frontage with side setbacks of 0 ft min per side and rear setbacks measured to the centerline of a rear alley where present. The front build-to values in Table 4.3.1-E control placement; read the table row for the exact principal and secondary frontage values and accessory building placement before design.

CD-5 places buildings at or near the frontage with shallow maximum front setbacks (up to 15 ft max in some locations per the table) and minimal side and rear setbacks. The exact build-to and setback values vary by frontage condition within Table 4.3.1-F; read the table row for the site's frontage before design.

CD-5C places buildings at the frontage with near-zero setbacks; the table shows a side setback of 3 ft max in at least one condition and rear setback not regulated in at least one condition. The build-to and setback values vary by frontage condition within Table 4.3.1-G, so read the exact row for the site before design.

SD-MHP setbacks are set per manufactured home site in Table 4.3.1-H, with separate columns for principal and accessory buildings. Read the exact table rows for the proposed site layout and confirm interior separation requirements with Development Services.

SD-INT setbacks are set in Table 4.3.1-I with one principal building max per lot or building site. Read the exact setback rows for principal and accessory buildings and confirm buffer or screening requirements where the site adjoins residential districts (Section 4.3.11).

SD-LI setbacks are set in Table 4.3.1-J, with screening required at frontages and adjacent to civic space by building, wall, hedge, or fence per the table screening rows, and buffers under Section 4.3.11 where the site adjoins residential districts. Read the exact setback rows before site layout.

SD-HI setbacks are set in Table 4.3.1-K, with screening required at frontages and adjacent to civic space per the table screening rows (except at driveways), and buffers under Section 4.3.11 where the site adjoins residential districts. Read the exact setback rows before site layout.

PUD-R baseline setbacks in Table 4.3.1-L: front build-to range 15 ft to 35 ft, side 0 ft min (attached townhouse conditions), rear 10 ft min, with up to 6 attached townhouse principal buildings per lot or building site, otherwise 1 max. The approved Master PUD Development Plan can set project-specific values, which control; verify the plan before design.

PUD-MU baseline setbacks in Table 4.3.1-M: front build-to range 0 ft to 20 ft, side 0 ft min, rear not regulated in the table baseline. Impervious surface coverage may reach 100 percent and density is 12 density units per acre max. The approved Master PUD Development Plan controls where it sets different values.

Civic District baseline setbacks: side 0 ft min and rear 0 ft min per Table 4.3.1-O, with front placement set by the table's frontage rows. Civic space design follows Table 5.3.2-A and Table 5.3.2-B as related to the adjacent district.