▁( former ly ▁All erton ▁Hotel ▁and ▁War wick ▁All erton ▁Hotel ▁Chicago ▁and ▁All erton ▁Crow ne ▁Pla za ▁Hotel ) ▁is ▁a ▁ 2 5 - story ▁ ▁hotel ▁sk ys cra per ▁on ▁the ▁Magn ific ent ▁M ile ▁in ▁the ▁Near ▁North ▁Side ▁community ▁area ▁of ▁Chicago , ▁Illinois . ▁▁ ▁It ▁was ▁the ▁first ▁building ▁in ▁the ▁city ▁to ▁feature ▁pron ounced ▁set back s ▁and ▁to wers ▁resulting ▁from ▁the ▁ 1 9 2 3 ▁z oning ▁law . ▁The ▁building ▁was ▁designated ▁a ▁Chicago ▁Land mark ▁on ▁May ▁ 2 9 , ▁ 1 9 9 8 . ▁ ▁When ▁the ▁All erton ▁Hotel ▁first ▁opened , ▁it ▁had ▁four teen ▁flo ors ▁of ▁small ▁a partment - style ▁rooms ▁for ▁men ▁and ▁six ▁similar ▁flo ors ▁for ▁women , ▁with ▁a ▁total ▁of ▁ 1 , 0 0 0 ▁rooms . ▁ ▁The ▁hotel ▁also ▁bo asted ▁social ▁events , ▁gold , ▁sports ▁le agues , ▁a ▁library , ▁sol arium , ▁and ▁an ▁in - house ▁magazine . ▁An ▁early ▁resident ▁was ▁Louis ▁Sk id more , ▁founder ▁of ▁the ▁architect ural ▁firm ▁Sk id more , ▁O w ings ▁& ▁M err ill . ▁ ▁In ▁the ▁ 1 9 4 0 s ▁and ▁ 1 9 5 0 s , ▁the ▁hotel ▁hous ed ▁a ▁sw ank y ▁l oun ge ▁on ▁its ▁top ▁floor , ▁called ▁the ▁" T ip ▁Top ▁T ap ". ▁ ▁Although ▁the ▁l oun ge ▁closed