Corunna MI data center zoning ordinance (2026)
Corunna, Michigan — Data Center Ordinance Requiring a Special Use Permit, a 500-Foot Setback From Existing Homes, a 250-Foot Buffer and a Completed Environmental Study, Adopted Before Any Developer Approached the City (August 3, 2026)
Corunna, MI · City of Corunna, Mich. — data center zoning ordinance (adopted August 3, 2026)
- Status
- In effect
- Took effect
- August 3, 2026
- Applies to
- Any developer proposing a data center in Corunna — required to obtain a special use permit, meet the height, buffer, setback and noise limits, and complete an environmental study
- Enforced by
- Corunna Planning Commission (special use permits) / City of Corunna zoning administration
Corunna City Council unanimously adopted a data center ordinance on August 3, 2026 after a public hearing. It is a regulation rather than a ban, and the numbers in it are specific enough to be worth recording. A prospective data center must first obtain a special use permit from the city's planning commission. The ordinance sets a maximum building height of 100 feet, with a possible waiver request up to 165 feet; a minimum 250-foot buffer from property lines and roads; and a minimum 500-foot setback from any existing residential dwelling not located on the project parcel. It also imposes noise maximums and requires applicants to complete an environmental study. The most striking fact about it is the timing: no prospective data center developer had approached Corunna, and the city had not been in contact with any. Corunna wrote its rules before there was anything to apply them to. That is the opposite of the pattern running through most of this dataset, where a jurisdiction learns of a project and scrambles for a moratorium. A city that has already adopted standards does not need to pause anything. Corunna is in Shiawassee County in mid-Michigan.
Who is protected: Corunna residents, particularly occupants of dwellings within 500 feet of any prospective data center parcel
Legal detail
City of Corunna, Mich. (Shiawassee County) — data center zoning ordinance, drafted and first approved by the city Planning Commission and adopted unanimously by City Council following a public hearing at its regular meeting of Monday, August 3, 2026. OPERATIVE REQUIREMENTS: (1) SPECIAL USE PERMIT required from the Planning Commission before any data center may be established; (2) MAXIMUM BUILDING HEIGHT 100 feet, with a waiver request possible up to 165 feet; (3) MINIMUM 250-FOOT BUFFER from property lines and roads; (4) MINIMUM 500-FOOT SETBACK from an existing residential dwelling not located on the project parcel; (5) NOISE MAXIMUMS; (6) APPLICANT-COMPLETED ENVIRONMENTAL STUDY. INSTRUMENT CLASS — a permanent standards ordinance, not a moratorium: it has no sunset and requires no follow-on work, and it channels data centers into a discretionary special-use review with quantified siting constraints rather than prohibiting or pausing them. TIMING IS THE DISTINGUISHING FACT: no prospective data center developer had approached Corunna and the city had not been in direct contact with any developer. Corunna adopted standards PRE-EMPTIVELY, which is the posture most moratoriums in this dataset exist to buy time to reach. A jurisdiction that already has quantified standards has no need to pause applications. MICHIGAN CONTEXT: adopted the same month as the Garfield Township (Grand Traverse County) one-year ban, while Michigan legislators debated a statewide data center freeze. The neighbouring City of Wixom maintains a combined data center moratorium and ordinance page, indicating the two-instrument pattern is common in Michigan.
Key facts
| Jurisdiction | Corunna, MI |
|---|---|
| Level | City / local |
| Strength | Moderate |
| Enacted | August 3, 2026 |
| Citation | City of Corunna, Mich. — data center zoning ordinance (adopted August 3, 2026) |
| Private right of action | No, agency enforcement only |
| Penalties | No data center may be established without a special use permit meeting the ordinance's height, buffer, setback, noise and environmental study requirements |
| Topics | data-center siting and energy · consumer protection · government use of AI |
| News report | Corunna City Council approves data center ordinance — The Argus-Press |
Related data-center siting and energy rules elsewhere
- Superior WI Data Center Moratorium (1-year) · In effect
- Dane County WI Hyperscale Data Center Moratorium · In effect
- Madison WI Data Center Moratorium (1-year) · In effect
- Manitowoc County WI Data Center Moratorium · In effect
- WA SB 5982 (Data Center / Clean Energy) · In effect
- Dayton OH data center moratorium (180-day, Apr 2026) · In effect
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