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
The northward expansion of the city envisioned by the elder van Rensselaer finally came to pass after 1825, when the Erie Canal was opened. Many new arrivals to the city, drawn by the canal and its economic opportunities, needed places to live and work. They looked north, along Broadway and North Pearl. Some found the mansion neighborhood and the blocks to its west to their liking, enough that city directories of the period show a few residents and businessmen listing "Arbor Hill" as their address. During the 1830s, they built some of the first houses in the district after the mansion. A few from this period, such as 10 Ten Broeck Place and 31 Second Street, survive. Similarly, the mixed-use Greek Revival buildings around the intersection of Second and South Swan were built in the early 1840s.