Industrial Districts.
Indianapolis-Marion County Revised Code § 742-107
in effectSec. 742-107. - Industrial Districts.
A. General provisions.
1. Industrial park. Land uses permitted in an Industrial District established by this chapter may be grouped together to create an industrial park, subject to all requirements of the District.
2. Accessory uses and structures. Accessory uses and structures are permitted in the industrial Districts in accordance with Table 743-1: Use Table. Unless specifically exempted, accessory uses and structures must meet all standards of the Zoning Ordinance, in particular the use-specific standards in Section 743-306 (Accessory and Temporary Uses) and the development standards of Chapter 744.
B. Restricted Industrial District (I-1).
1. Purpose. The I-1 District is designed for those industries that present the least risk to the public. In the I-1 District, uses carry on their entire operation within a completely enclosed building in such a manner that no nuisance factor is created or emitted outside the enclosed building. No storage of raw materials, manufactured products, or any other materials is permitted in the open space around the buildings. Loading and unloading berths are completely enclosed or shielded by solid screening. This District has strict controls on the intensity of land use providing protection of each industry from the encroachment of other industries. It is usually located adjacent to protected Districts and may serve as a buffer between heavier industrial Districts and business or protected Districts.
Table 742-107-1 I-1 District Dimensional Standards
Compact | Metro
Lot Standards
Minimum street frontage | 35 ft. | 75 ft.
Setbacks
Minimum depth front yard | See Table 744-201-6 | See Table 744-201-6
Minimum front transitional yard | 30 ft. | 100 ft.
Minimum width of side yard | 10 ft. | 30 ft.
Minimum side transitional yard | 30 ft. | 50 ft.
Minimum depth of rear yard | 10 ft. | 30 ft.
Minimum rear transitional yard | 30 ft. | 50 ft.
Building Standards
Maximum building height | 40 ft. | 40 ft.
Maximum building height along transitional yard | 22 ft. | 22 ft.
This Table is a summary of selected standards; refer to Chapter 744, Article II Lot and Building Dimensions, for additional regulations.
*In case of a discrepancy with this summary table, the master table in Chapter 744-II governs.
2. Examples.
[image omitted; see the official code]
[image omitted; see the official code]
3. Illustration - Metro Context Area.
[image omitted; see the official code]
4. Illustration - Compact Context Area.
[image omitted; see the official code]
5. Other standards. [Reserved]
C. Light Industrial District (I-2).
1. Purpose. The I-2 District is for those industries that present minimal risk and typically do not create objectionable characteristics (such as dirt, noise, glare, heat, odor, etc.) that extend beyond the lot lines. Outdoor operations and storage are completely screened if adjacent to protected Districts, and are limited throughout the District to a percentage of the total operation. Wherever possible, this District is located between a protected District and a heavier industrial area to serve as a buffer. For application to the older industrial Districts within the central city, standards specifically accommodate the use of shallow industrial lots.
Table 742-107-2 I-2 District Dimensional Standards
Compact | Metro
Lot Standards
Minimum street frontage | 35 ft. | 75 ft.
Setbacks
Minimum depth front yard | See Table 744-201-6 | See Table 744-201-6
Minimum front transitional yard | 30 ft. | 100 ft.
Minimum width of side yard | 10 ft. | 30 ft.
Minimum side transitional yard | 30 ft. | 50 ft.
Minimum depth of rear yard | 10 ft. | 30 ft.
Minimum rear transitional yard | 30 ft. | 50 ft.
Building Standards
Maximum building height | 50 ft. | 50 ft.
Maximum building height along transitional yard | 22 ft. | 22 ft.
This Table is a summary of selected standards; refer to Chapter 744, Article II Lot and Building Dimensions, for additional regulations.
*In case of a discrepancy with this summary table, the master table in Chapter 744-II governs.
2. Examples.
[image omitted; see the official code]
[image omitted; see the official code]
[image omitted; see the official code]
3. Illustration - Metro Context Area.
[image omitted; see the official code]
4. Illustration - Compact Context Area.
[image omitted; see the official code]
5. Other standards. [Reserved]
D. Medium Industrial District (I-3).
1. Purpose. The I-3 District is an intermediate District for industries that present moderate risks to the general public. Wherever practical, this District should be away from Protected Districts and buffered by intervening lighter Industrial Districts. Where this District abuts Protected Districts, setbacks are large and enclosure of activities and storage is required.
Table 742-107-3 I-3 District Dimensional Standards
Compact | Metro
Lot Standards
Minimum street frontage | 35 ft. | 75 ft.
Setbacks
Minimum depth front yard | See Table 744-201-6 | See Table 744-201-6
Minimum front transitional yard | 40 ft. | 150 ft.
Minimum width of side yard | 10 ft. | 30 ft.
Minimum side transitional yard | 40 ft. | 100 ft.
Minimum depth of rear yard | 10 ft. | 30 ft.
Minimum rear transitional yard | 40 ft. | 100 ft.
Building Standards
Maximum building height along transitional yard | 35 ft. | 35 ft.
This Table is a summary of selected standards; refer to Chapter 744, Article II Lot and Building Dimensions, for additional regulations.
*In case of a discrepancy with this summary table, the master table in Chapter 744-II governs.
2. Examples.
[image omitted; see the official code]
[image omitted; see the official code]
3. Illustration - Metro Context Area.
[image omitted; see the official code]
4. Illustration - Compact Context Area.
[image omitted; see the official code]
5. Other standards. [Reserved]
E. Heavy Industrial District (I-4).
1. Purpose. The I-4 District is for those heavy industrial uses which present an elevated risk to the general public and are typically characterized by factors that would be exceedingly difficult, expensive or impossible to eliminate. These industries are therefore buffered by a sizeable area to minimize any detrimental aspects. The development standards and performance standards reflect the recognition of these problems. Location of this District should be as far as possible from Protected Districts and environmentally sensitive areas as practical and never be adjacent to Protected Districts.
Table 742-107-4 I-4 District Dimensional Standards
Compact | Metro
Lot Standards
Minimum street frontage | 35 ft. | 75 ft.
Setbacks
Minimum depth front yard | See Table 744-201-6 | See Table 744-201-6
Minimum front transitional yard | 50 ft. | 200 ft.
Minimum width of side yard | 20 ft. | 30 ft.
Minimum side transitional yard | 50 ft. | 150 ft.
Minimum depth of rear yard | 20 ft. | 30 ft.
Minimum rear transitional yard | 50 ft. | 150 ft.
Building Standards
Maximum building height along transitional yard | 35 ft. | 35 ft.
This Table is a summary of selected standards; refer to Chapter 744, Article II Lot and Building Dimensions, for additional regulations.
*In case of a discrepancy with this summary table, the master table in Chapter 744-II governs.
2. Examples.
[image omitted; see the official code]
[image omitted; see the official code]
3. Illustration - Metro Context Area.
[image omitted; see the official code]
4. Illustration - Compact Context Area.
[image omitted; see the official code]
5. Other standards. [Reserved]
(G.O. 64, 2015, § 2)
Source: Consolidated City of Indianapolis and Marion County, Revised Code (Municode Library, library.municode.com)URL: https://library.municode.com/in/indianapolis_-_marion_county/codes/code_of_ordinances?nodeId=TITIIIPUHEWE_CH742DI_ARTIPRDI_S742-107INDIFetched: 10/27/2026