Jackson Heights, Queens Heights is on a grid, with the major exceptions of streets surrounding Astoria Boulevard, Junction Boulevard, the Brooklyn-Queens Expressway, and Grand Central Parkway. However, there are a few side streets of note in Jackson Heights. Jackson Mill Road, which is actually two roads in Jackson Heights and East Elmhurst, was formerly a streetcar line, and was one of several "Bowery Bay Roads" leading to Bowery Bay. The rest of the original Jackson Mill Road was destroyed by the construction of the LaGuardia Airport, but sections exist between 94th and 95th Streets near 24th Avenue; between 96th and 97th Streets near
Jackson Heights, Queens that extends from Northern Boulevard to the Grand Central Parkway and between 81st and 111th Streets, is sometimes regarded as a northward extension of the neighborhood; however, it was not part of the original planned development, built in 1916. In addition, a section between Hazen and 81st Streets, and between 19th Avenue and Grand Central Parkway, overlaps with Astoria; it is sometimes called Ditmars or Steinway. The historic section of Jackson Heights is the more affluent part of the neighborhood. Most housing units in Jackson Heights are apartments in multi-unit buildings, many of which are five or six stories. Many