Similarly, the 1906 brick parish house for the Madison Avenue Baptist Church on East 31st Street in NoMad has been replaced by 30E31, a 40-story, 42-unit condo from Ekstein Development Group and Pinnacle Group opening this fall. One-bedrooms start at $1.7 million.

And the Lagree Baptist Church, which had been based since 1975 in a Beaux-Arts-detailed former movie theater on West 125th Street, has been razed for Eleven Hancock, a glassy 12-story, 71-unit condo. Nortco Development, a Manhattan developer making its first push into Harlem, bought the property from Lagree in 2016 for $28.5 million.

Priced from $585,000, Eleven Hancock offers mostly one- and two-bedrooms, with floor-to-ceiling windows, black-toned kitchen faucets and quartz counters. A three-level space aimed at big box retailers is also in the building, which cantilevers over a neighboring building.

Jeff Krantz, an associate broker agent at Halstead Development Marketing who is handling sales, declined to say how many contracts had been signed since sales began in August. But Mr. Krantz, who has lived in Harlem for a decade, said church conversions are a common local sight. “They’re doing deals to raise capital,” he said.

Image Baptist Church of the Redeemer at Flatbush, pictured here in the summer of 2015, had fallen into disrepair. “There was water coming in everywhere,” the pastor said.

Non-divine Intervention

With more than 900 sites in Manhattan currently classified as religious buildings — a list that includes synagogues, rectories and convents, a few dozen lost buildings might not seem calamitous.

But the number is significant enough to worry some city officials and other watchdog groups.

Gale A. Brewer, the Manhattan Borough President, for one, has compiled a list of nearly 200 properties that could be vulnerable, perhaps because they aren’t as big as they could be under zoning laws, which means they have loads of unused development rights, or air rights, to sell. Staff members from Ms. Brewer’s office have been paying visits to the properties to determine whether they are in harm’s way.