It includes installing a new fire alarm system and renovating of the main rest rooms, documents state.
The city had expected to spend $1.683 million this year, $1.3 million next year and $1 million in 2023 for the three-phased project.
Kettering City Council is expected Tuesday night to approve the additional funds for this year’s work.
Rosewood serves more than 80,000 people annually through a variety of visual and performing arts, according to the city.
It was built as an elementary school in 1965 and closed in 1984 when Kettering City Schools consolidated buildings. No significant structural or interior changes have occurred since 1985, officials have said.
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