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Olivette weighs 300‑ vs 500‑foot buffer for data centers, leans toward stricter limit
Summary
Commissioners reviewed map tiers and noise standards for data centers in the comprehensive‑plan update, discussed special‑permit review by council, and flagged concerns about potential warehouse conversions for federal uses; several commissioners preferred a 500‑foot buffer to limit eligible sites.
The Oivette City Planning & Community Design Commission reviewed proposed comprehensive‑plan language on March 5 that would limit where new data centers can locate and require performance standards and special permits for larger facilities.
Senior planner Don Doty walked the commission through parcel maps showing which industrial and light‑industrial properties would remain eligible under a 300‑foot or a 500‑foot buffer measured from residential and public‑activity zones (parks, schools and government facilities). He said the larger 500‑foot buffer reduces the number of candidate parcels substantially.
Doty explained the draft uses a tiered approach to data centers — "minor" centers up to 20,000 square feet, "mid" up to 99,999 square feet, and "mega" centers over 100,000 square feet — and said the draft would effectively prohibit most mega centers. Staff also proposed noise‑impact studies and mitigation requirements, including predicting future noise and aiming to keep impacts below roughly 65 decibels in noise‑sensitive areas and restricting generator hours.
Commission discussion focused on noise and legal risk. One commissioner cited media accounts that report audible buzzing at distances of 1,000 feet and said noise might be more pronounced at night; staff pointed out the city can add performance standards and that the draft would change data centers from a by‑right use to a special permit that requires council review. "If our goal is to be restrictive, let's just go with 500," one commissioner said in favor of the larger buffer.
The commission also raised an unrelated but practical worry about warehouse conversions: a commissioner asked what would happen if a federal use (for example, housing a large number of people) sought to convert a manufacturing facility, and staff said government entities have certain zoning exemptions while building‑code and occupancy rules (assembly classifications, fire and plumbing requirements) create additional constraints.
Why it matters: buffer distance, tier definitions and the decision to require a special permit will determine how many parcels can host data‑center uses, what community input is required, and what mitigation conditions the city can impose.
Next steps
Staff said the council will hold public hearings on the data‑center language and on residential rooftop solar, and that the commission will receive revised maps and further draft language at the April 2 meeting. No zoning changes were finalized at the commission meeting; the session was preparatory and guidance‑oriented.
