St. John's Lutheran Church in Madison, Wis., is being converted into a 10-story high-rise that will combine a worship space with more than 100 affordable apartments. Lawmakers see the potential for much-needed housing on church-owned land, but opponents worry local communities could lose their authority over neighborhood development. (Video screenshot courtesy of St. John's Lutheran Church)

Growing up in a religious family, Florida Republican state Sen. Alexis Calatayud has seen how many church communities are no longer anchored to a single building in the way they used to be. Her small prayer groups take place over chats these days, not necessarily in person or sitting shoulder-to-shoulder in pews.

With churches in her Miami-Dade County district grappling with shrinking membership and a

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