The developers of a rental building in Prospect-Lefferts Gardens, Brooklyn, that got off to a rough start, with some neighbors suing to halt construction, are hoping that time has healed wounds now that leasing has begun.

The Parkline, a 254-unit development from the Hudson Companies at 626 Flatbush Avenue, near Prospect Park, soars 23 stories, putting it head and shoulders above much of the low-lying area.

The height of the building was at the heart of a lawsuit filed in 2013 by neighbors and community groups that said the project would ruin views from the park and cast shadows over nearby gardens. While the legal action prompted a temporary work stoppage, it ultimately fell short of its goal. Today the building is just as tall as planned.

For its part, Hudson is looking forward.

“There were a lot of concerns about this building changing the neighborhood,” said Alison Novak, a Hudson principal. But because the Parkline has affordable apartments as well as market-rate ones, concerns about shadows should be secondary, Ms. Novak said: “I would lean toward: It’s more important to have a mixed-income building in a neighborhood that’s experiencing economic pressure.”