Frank Lloyd Wright designed the Dana-Thomas House in 1902 for Springfield socialite Susan Lawrence Dana. Now owned and operated as a museum by the Illinois Department of Natural Resources, the Dana-Thomas House is notable for its 16 different levels and its large intact collection of Wright’s original decorative glass and furniture. The Dana-Thomas House State Historic Site also includes a Carriage House and a future park site to the north.

The Dana-Thomas House and Carriage House had developed problems with water infiltration and associated damage, raising concerns about potential roof failure. Arda was selected for time-sensitive repairs to both roofs. An investigation identified and documented leaks at several points of the tile roof as well as insufficient drainage, and an expedited repair program repaired the critical damage at the roofs.

Arda was then retained for a more comprehensive renovation, including a full roof replacement at the Dana-Thomas House and a partial replacement at the Carriage House, improved roof drainage, and restoration of the frieze panels, art glass windows and frames and select areas of masonry including rehabilitation of the north wall of the House. Drainage issues at the site are being addressed and mechanical, electrical, plumbing and fire protection systems will be modernized for the buildings.

Arda is also rehabilitating the adjacent White Cottage, an IDNR-owned building across the street that Susan Lawrence Dana moved into in 1928 when she became unable to maintain the House. The White Cottage will be rehabilitated with façade restoration, roof replacement, repairs to historic windows and waterproofing, as well as a historically sensitive reconstruction of the porch with accessibility upgrades, for integration into the historic site.