Planning commission approves small expansion for Resonant Sciences building

The Beavercreek Planning Commission voted unanimously to approve a minor modification to a previously authorized industrial/laboratory building to allow a roughly 3,650‑square‑foot rear expansion intended to house autoclaves and related equipment.

Planning staff told commissioners the original approval, granted in 2024, covered a 130,000–135,000 square‑foot building with the southern half approximately 62,500 square feet. The applicant requested a small addition; because the increase falls under the city’s 5% threshold for a major modification, staff characterized the request as a minor modification and recommended approval with six conditions.

During questioning, a commissioner pressed staff and the applicant on autoclave safety—venting, drainage, on‑site gas storage and solid/liquid waste disposal. Planning staff said installations must meet Ohio and U.S. EPA requirements and that Greene County Building Regulations, which the city contracts with for building permits and inspections, will review structural and safety systems as part of the permit process. Staff also noted exterior tanks and related equipment are shown on the site plans and would be finished to match the building.

A motion to approve PC24‑2 passed on a roll‑call vote with the four present members voting yes. No public testimony was offered for this non‑hearing decision item.

The measure was approved as a planning commission decision with the stated six conditions; building permits and technical safety reviews remain subject to Greene County review and applicable state and federal regulations.