Arbor Hill Historic District–Ten Broeck Triangle
In 1975 several residents of the Ten Broeck Triangle formed the Arbor Hill Concerned Citizens Association (AHCCA) to lobby the city for improvements in neighborhood services. Many of them lived in the surviving townhouses, which they had often restored themselves. They saw gentrification as the key to revitalizing the neighborhood, due to its proximity to downtown Albany and the growing service-sector jobs there. To further this goal, they worked with preservationists to have the triangle recognized as a historic district. That area was duly listed on the Register in 1978 under that name.
Arbor Hill Historic District–Ten Broeck Triangle
Ten Broeck named the mansion Prospect due to the commanding view it offered of the Hudson and its river traffic (some other accounts suggest he called it Arbor Hill from the beginning). He lived there until his death in 1810; Elizabeth survived him by three years. By that point a few other houses had likely been built nearby, but not enough to constitute a neighborhood, even after Colonie was annexed by the city in 1815. The mansion was sold to new owners who, over the next three decades, refurbished and expanded it with elements of the similar Greek Revival architectural style.