[5] It was constructed during a period of massive population explosion on Long Island, and when many of the large, Gold Coast-era estates in the area were giving way to upscale, suburban housing developments.

[13][14][15][16] Through the overhaul project, The Americana's exteriors were altered to make the structures more luxurious, with storefront designs similar to those found along Madison Avenue or Rodeo Drive.

[7][20][21][22] Following its closure, the former store was sold, and it was rebuilt in the 1990s as a new, separately-owned shopping center located adjacent – and attached – to the Americana Manhasset.

[23][24][25] In addition to B. Altman, other major stores which were located at the Americana Manhasset in the past include J.J. Newberry, Escada, Yves St. Laurent, Charles Jourdan, Barneys, and Waldbaum's, amongst others.

[29][30][31] The project, which was fully funded by Castagna Realty, saw the eastward extension of an existing district sewer force main underneath Northern Boulevard by approximately 0.8 miles (1.3 km).

[5][33] Some of the retailers at the mall include Audemars Piguet, Bluemercury, Bottega Veneta, Brooks Brothers, Brunello Cucinelli, Burberry, Cartier, Celine, Chanel, Christian Louboutin, David Yurman, Dior, Ermenegildo Zegna, Fendi, Gucci, Hermès, Hugo Boss, Jimmy Choo, Kiton, Kith, Louis Vuitton, MaxMara, Saint Laurent, Salvatore Ferragamo, Todd Snyder, Tesla, Versace, Van Cleef & Arpels, Valentino, and Vilebrequin, amongst others.