Jerilyn Perine, executive director of the Citizens Housing and Planning Council, noted that unlike universal prekindergarten, a linchpin accomplishment of the mayor’s first year, the housing plan cannot be boiled down to a single snappy message.

“I could sell you pre-K in one sentence: We’ll give pre-K to every child in the city,” said Ms. Perine, a former city housing commissioner. Housing “is a complex issue,” she said. “It has lots of moving parts.”