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.
Oak Hill, Austin, Texas
As Oak Hill is not an incorporated community, it does not have any legal boundaries. The community of neighborhoods is centered around the intersection of U.S. Route 290/TX-71 and Williamson Creek, roughly southwest of the center of Austin. The Oak Hill Association of Neighborhoods (OHAN) defines Oak Hill as "...starting from Travis Country in the Northwest, neighborhoods bordering Brodie Lane down to the Travis/Hays County line, following the county line on the south up to Highway 290 West, and then neighborhoods bordering Circle Drive and Thomas Springs Road and finally along the Southwest Parkway." The boundaries defined by OHAN include areas within six ZIP codes and 89 neighborhoods, including Circle C Ranch. However, only 29 neighborhood homeowners' associations are members of OHAN. The city of Austin defines West Oak Hill and East Oak Hill as neighborhood planning areas, encompassing areas adjacent to U.S. Route 290 from Circle Drive to a location slightly east of Texas State Highway Loop 1. Spanning , the neighborhood planning area is Austin's largest.