▁class rooms ▁to ▁accommod ate ▁the ▁over - en roll ment . ▁Iron ically , ▁the ▁school ▁had ▁never ▁had ▁port able ▁tra ilers ▁until ▁after ▁the ▁new ▁facility ▁was ▁built . ▁Even ▁though ▁North western ' s ▁ 2 0 1 3 - 1 4 ▁en roll ment ▁was ▁under ▁capacity , ▁the ▁school ▁then ▁hous ed ▁twenty ▁port able ▁class rooms . ▁The ▁additional ▁space ▁was ▁primarily ▁needed ▁to ▁accommod ate ▁the ▁exp ans ive ▁course ▁offer ings ▁and ▁programs ▁available ▁at ▁the ▁school . ▁ ▁Until ▁ 2 0 0 6 , ▁North western ▁was ▁officially ▁the ▁largest ▁high ▁school ▁in ▁Maryland ▁when ▁measured ▁by ▁square ▁foot age , ▁a ▁distinction ▁that ▁has ▁since ▁been ▁given ▁up ▁to ▁the ▁new ▁. ▁Dr . ▁Henry ▁A . ▁W ise , ▁Jr . ▁High ▁School . ▁ ▁However , ▁with ▁W ise ▁having ▁a ▁capacity ▁of ▁ 2 , 6 0 0 ▁students ▁and ▁North western ▁having ▁a ▁capacity ▁of ▁ 2 , 7 0 0 , ▁North western ▁is ▁still ▁the ▁largest ▁high ▁school ▁in ▁the ▁county ▁in ▁terms ▁of ▁capacity . ▁ ▁There ▁was ▁controvers y ▁for ▁a ▁time ▁for ▁the ▁distinction ▁of ▁what ▁was ▁then ▁phys ically ▁the ▁largest ▁high ▁school ▁in ▁Maryland , ▁between ▁North western ▁and ▁neighbor ing ▁Mont gom ery ▁Bla ir ▁High ▁School ▁in ▁Mont gom ery ▁County . ▁Both ▁had ▁been ▁designed ▁by ▁the ▁same ▁architect ural ▁firm , ▁around ▁the ▁same ▁time ▁( B la ir ▁in ▁ 1 9 9 8 ;