The original Federal-Greek Revival style building, completed in 1735, had survived the struggles of the colonial days and the disruptions of the American Revolutionary War. It was replaced in 1832 by the present sanctuary, a New York City designated landmark. The Reformed Church of Newtown Complex was added to the National Register of Historic Places in 1980. The cornerstone of the original building can still be seen in the foundation of its present structure. The sanctuary and adjoining fellowship hall are, as noted by the New York City Landmarks Preservation Commission, "one of the few all wood church groups remaining in the City." A 1989 renovation replaced cupolas that had been damaged by a storm.
Congregation
As the needs of the church and community changed, staffing was increased, structural improvements were made, and the preaching shifted from Dutch to English. In 1956, for its 225th anniversary, President Dwight D. Eisenhower visited the church. For this occasion, the Reverend A. Nelson Doak compiled a brief history of the parish and praised Elmhurst's ethnic diversity. In 1980, as Elmhurst was changing complexion, Rev. Doak's hope for Newtown Church began to be fulfilled. His successor, the Rev. David Boyce, perceiving the changing needs of the community, initiated a worship service for Taiwanese immigrants and later another service for the increasing population of Tamil-speaking Indians in the area. The originally Dutch church now had services in English, Taiwanese, and Tamil. The Tamil ministry stopped after the death of the Tamil minister, the Rev. Paul Theodore, but some Tamil members incorporated themselves into the English service and remained with the congregation. Meanwhile, the Taiwanese ministry, led by the Rev. Bill H.C. Lee, soon outnumbered Newtown's white congregants, as the membership more than doubled from 1981 to 1982. The Taiwanese had entered in, not as a distinct congregation, but as an additional ministry under the authority of Newtown's leadership. As full members, they voted and soon obtained seats on the church's consistory. Although there can technically be only one “senior pastor” in an RCA parish, Pastor Boyce, recognizing the unique circumstances of the day, had innovatively elevated Lee to be an equal “co-pastor” with him. In 1995, the Rev. David K.T. Su instituted a third worship service in Mandarin Chinese. Efforts by the church to fulfill the Scriptural call to be "a house of prayer for all peoples" have thus resulted in a Taiwanese service, a Mandarin service, and an English service attended by Asians, Latinos, and white Americans each Sunday. In December 2017, Rev. Su retired after nearly three decades of service to the church, after which the Rev. Dr. Tien-Heng Chiu was installed as Senior Pastor. The Reformed Church of Newtown has also produced several ministers for the Reformed Church of America in recent decades: the Rev. I. Douglas Estella and the Rev. Ben Lin, both sons of Newtown Church.
