But Pastor Moore said a proper historic renovation would cost more than $3 million.

"They're a company that specializes in historic renovation," Mr. Walder said.

Today, more than $150 million in private investing is underway or planned in new construction, infill development or historic renovation in the park area.

Additional historic renovation began in 1996 and included roof repairs, tuckpointing, and lead paint removal.

Recently, historic renovations to the Millers House have been started.

In the 1980s, churches, libraries, museums, historic renovations, and performing arts facilities were hallmarks of the firm's work.

It's not only new construction and historic renovation.

The church has stabilized much of the building and is currently attempting to raise the funds necessary for further historic renovation of the opera house.

More than half the project's cost was provided by tax credits for affordable housing and historic renovation.

The project, called the Brewery District, is the most ambitious historic renovation in Columbus to date.