Chicago zoning comparison · light vs heavy industry
M2-2 vs M3-3: which lets you build more?
M3-3 carries the larger envelope — FAR 3 vs 2.2.
Figures read from Title 17, chapter 17-5, in the current adopted edition 2026-S-73, retrieved 15 July 2026. Data snapshot generated 2026-08-24. How this data is produced and checked →
Side by side
| M2-2 Light Industry 2 | M3-3 Heavy Industry 3 | |
|---|---|---|
| Max FAR | 2.2 | 3 |
| Max height | — | — |
| Lot area per unit | — | — |
| Units on a standard 25×125 ft lot | — | — |
| Min lot area | — | — |
| Residential parking / unit | — | — |
| Max lot coverage | — | — |
| Permitted uses | light industrial uses and general industry | general industry |
| Connected Communities bulk bonus tier | No | No |
Green marks the more permissive value. Setbacks are contextual in both districts and omitted here — see the district pages for the working scalars and the governing formulas.