THA worked for fifteen years restoring the building’s interior and exterior, while adapting the site to suit modern safety and security needs, accessibility, technology and operations. Expansive areas of timber structure had to be stabilized, and areas previously uninhabitable were recovered for use. The fine sandstone and brick exteriors were conserved, and roofs were replaced with copper and slate. Mechanical, electrical and life safety systems were threaded through the walls and ceilings.
The historic courtrooms, public areas and chambers were the focus of a comprehensive program of conservation or rebuilding of historic plaster, stained glass, woodwork, mosaic tile, sculpture and furnishings. Each room was designed to incorporate twenty-first century standards of courthouse facility planning and operations, and additions made to accommodate additional use.