After purchasing the building in 1993, the Chinese Christian Union Church spent $1 million raised from community donations to make extensive alterations to the building's interior, which suffered from peeling paint, falling plaster, and poor lighting.
The On Leong Merchants Association's former vault was converted into a closet, and the building's heating and water systems underwent major renovations and replacement.
Renovations were completed in 1995, and the CCUC opened the building in November.

In November 2007, the Pui Tak Center won a $100,000 grant from the Partners in Preservation, a program sponsored by American Express and the National Trust for Historic Preservation.
Spreading the word via e-mail, Facebook, and church sermons, the building led the five-week-long online contest from the start and ultimately received 14% of the vote.
It received more votes than any of the other 24 historic Chicago sites participating in the contest, including the Robie House, the Chicago Cultural Center, and Unity Temple.

In preparation for the restoration work, the structural and architectural engineering firm Wiss, Janney, Elstner Associates completed an evaluation of the building's eastern and southern facades, focusing on its terra cotta portions.
By using ultrasonic testing, engineers were able to evaluate the state of the terra cotta without further damaging the pieces.
Severely cracked or damaged pieces were partially removed and a report was written from these findings.
This report provided recommendations for the masonry facade and terra cotta repair work.
Restoration work began in spring 2009 and is scheduled for completion in early 2010.
All of the damaged terra cotta elements have been replaced on the south tower and parapet, and scaffolding has been erected on building's eastern facade in preparation for further restoration work.
Fully restoring the building's exterior terra cotta pieces and clay roof tiles is the first step in a long-range $2 million repair plan.
After purchasing the building in 1993, the Chinese Christian Union Church spent $1 million raised from community donations to make extensive alterations to the building's interior, which suffered from peeling paint, falling plaster, and poor lighting. The On Leong Merchants Association's former vault was converted into a closet, and the building's heating and water systems underwent major renovations and replacement. Renovations were completed in 1995, and the CCUC opened the building in November.
In November 2007, the Pui Tak Center won a $100,000 grant from the Partners in Preservation, a program sponsored by American Express and the National Trust for Historic Preservation. Spreading the word via e-mail, Facebook, and church sermons, the building led the five-week-long online contest from the start and ultimately received 14% of the vote. It received more votes than any of the other 24 historic Chicago sites participating in the contest, including the Robie House, the Chicago Cultural Center, and Unity Temple.
In preparation for the restoration work, the structural and architectural engineering firm Wiss, Janney, Elstner Associates completed an evaluation of the building's eastern and southern facades, focusing on its terra cotta portions. By using ultrasonic testing, engineers were able to evaluate the state of the terra cotta without further damaging the pieces. Severely cracked or damaged pieces were partially removed and a report was written from these findings. This report provided recommendations for the masonry facade and terra cotta repair work. Restoration work began in spring 2009 and is scheduled for completion in early 2010. All of the damaged terra cotta elements have been replaced on the south tower and parapet, and scaffolding has been erected on building's eastern facade in preparation for further restoration work. Fully restoring the building's exterior terra cotta pieces and clay roof tiles is the first step in a long-range $2 million repair plan.
Pui Tak Center